WO2022144518A1 - Vitrage antisolaire comprenant une couche mince a base de nitrure de titane et une couche de nitrure de silicium sous-stoechiometriques en azote - Google Patents
Vitrage antisolaire comprenant une couche mince a base de nitrure de titane et une couche de nitrure de silicium sous-stoechiometriques en azote Download PDFInfo
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- WO2022144518A1 WO2022144518A1 PCT/FR2021/052422 FR2021052422W WO2022144518A1 WO 2022144518 A1 WO2022144518 A1 WO 2022144518A1 FR 2021052422 W FR2021052422 W FR 2021052422W WO 2022144518 A1 WO2022144518 A1 WO 2022144518A1
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- Prior art keywords
- layer
- silicon nitride
- glazing
- article according
- layers
- Prior art date
Links
- 229910052581 Si3N4 Inorganic materials 0.000 title claims abstract description 49
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 title claims abstract description 48
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 title claims abstract description 28
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title description 24
- 229910052757 nitrogen Inorganic materials 0.000 title description 12
- 239000010408 film Substances 0.000 title 1
- 239000010409 thin film Substances 0.000 title 1
- 239000011521 glass Substances 0.000 claims abstract description 41
- 239000000758 substrate Substances 0.000 claims abstract description 17
- 239000010410 layer Substances 0.000 claims description 125
- 229910052782 aluminium Inorganic materials 0.000 claims description 20
- 229910052796 boron Inorganic materials 0.000 claims description 7
- 229910052726 zirconium Inorganic materials 0.000 claims description 7
- 239000010936 titanium Substances 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 4
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 3
- 230000000475 sunscreen effect Effects 0.000 claims description 3
- 239000000516 sunscreening agent Substances 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000002356 single layer Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 14
- 239000002346 layers by function Substances 0.000 description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 12
- 230000005855 radiation Effects 0.000 description 12
- 229910052710 silicon Inorganic materials 0.000 description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
- 239000010703 silicon Substances 0.000 description 8
- 238000000151 deposition Methods 0.000 description 7
- 230000008021 deposition Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000009413 insulation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 238000004544 sputter deposition Methods 0.000 description 5
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910004219 SiNi Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000004737 colorimetric analysis Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004297 night vision Effects 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000000441 X-ray spectroscopy Methods 0.000 description 1
- UMVBXBACMIOFDO-UHFFFAOYSA-N [N].[Si] Chemical compound [N].[Si] UMVBXBACMIOFDO-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000005478 sputtering type Methods 0.000 description 1
- 230000037072 sun protection Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/001—General methods for coating; Devices therefor
- C03C17/002—General methods for coating; Devices therefor for flat glass, e.g. float glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/3411—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials
- C03C17/3429—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials at least one of the coatings being a non-oxide coating
- C03C17/3435—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials at least one of the coatings being a non-oxide coating comprising a nitride, oxynitride, boronitride or carbonitride
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
- C03C2217/78—Coatings specially designed to be durable, e.g. scratch-resistant
Definitions
- TITLE Sun protection glazing comprising a thin layer based on titanium nitride and a layer of silicon nitride sub-stoichiometric in nitrogen.
- the invention relates to glass articles for solar control glazing and said glazing, provided with stacks of thin layers, at least one of which is functional, that is to say it acts on solar radiation and/or thermal essentially by reflection and/or absorption of near infrared (solar) or far (thermal) radiation.
- the present invention relates more particularly to coated glazing(s) in particular those intended mainly for a function of solar protection of buildings, often called solar glazing.
- ком ⁇ онент(s) By “functional” or even “active” layer(s) is meant, within the meaning of the present application, the layer(s) of the stack which confers on the stack the essential to its thermal properties. Most often, the stacks of thin layers fitted to the glazing give it improved solar control properties essentially by the intrinsic properties of this active layer. For so-called sunscreen glazing, said layer acts on the flow of solar radiation passing through said glazing, as opposed to the other layers, generally made of dielectric material and essentially having the function of chemical or mechanical protection of said functional layer.
- Such glazing provided with stacks of thin layers act on the incident solar radiation either essentially by the absorption of the incident radiation by the functional layer, or essentially by reflection by this same layer.
- glazing either essentially to ensure thermal insulation of the dwelling and prevent heat loss, these glazing being qualified as insulating glazing.
- solar protection we thus mean within the meaning of the present invention the ability of the glazing to limit the energy flow, in particular the solar infrared radiation (1RS) passing through it from the outside to the inside of the dwelling or the passenger compartment. .
- the solar factor noted FS or g is used in the field.
- the solar factor g is equal to the ratio of the energy passing through the glazing (i.e. entering the room) and the incident solar energy. More specifically, it corresponds to the sum of the flux transmitted directly through the glazing and the flux absorbed by the glazing (including the stacks of layers possibly present on one of its surfaces) then possibly re-emitted towards the interior (the local).
- S selectivity
- such glazing must have a color that is substantially neutral both in transmission and in external reflection, or else bluish, that is to say values of the parameters a* and b* less than 5, in the international system (La *b*).
- the most efficient stacks marketed at the present time incorporate at least one metal layer of the silver type operating essentially in the mode of reflection of a major part of the incident IR (infrared) radiation. These stacks are thus mainly used as glazing of the low-emissivity (or low-e) type for the thermal insulation of buildings. These layers are however very sensitive to humidity and are therefore exclusively used in double glazing, facing 2 or 3 of it, to be protected. humidity. It is thus not possible to deposit such layers on simple glazing (also called monolithic).
- the stacks according to the invention do not include such layers based on silver, or else based on gold or platinum, or else in very negligible quantities, in particular in the form of unavoidable impurities.
- the functional layers, or even the stacks, of the glass articles according to the invention are in principle free of nickel or copper as functional layers.
- Stacks comprising functional layers based on titanium nitride (TiN) are also known.
- the publications DE102014114330, W02008017723, JPH05124839, WO2018/129135 or even WO2019/002737 describe, for example, stacks based on such functional layers.
- these titanium nitride layers must be surrounded by layers of dielectrics, and in particular based on silicon nitride, in particular to ensure the chemical durability of the stack, in particular if the glazing must be subjected to heat treatment such as quenching.
- Another function of these dielectric layers is in particular to adapt the optical properties of the glazing to the different requirements in the building sector.
- a glazing in order to further maximize the solar protection effect, which is essential in very sunny countries, a glazing is sought having a strong reflection on the side intended to be exposed towards the outside of the building (called external reflection in the present description ), that is to say on the face of the glazing not covered with the stack of thin layers acting on solar radiation.
- the glazing in addition to the solar protection properties previously explained, in the field of construction, in night vision, that is to say when the exterior luminosity is lower than the interior luminosity, the glazing may have the disadvantage of presenting a mirror effect for a observer placed inside the building, if the internal reflection of the glazing is too important and much higher than the external reflection. Such a mirror effect is undesirable because it prevents the observer placed inside the building from seeing the exterior of the building.
- another advantage of the present invention is to be able to provide a glass article limiting the interior mirror effect, in particular thanks to a reflection on the interior side limited (face of the glazing on which the stack is deposited) and in particular preferably substantially lower or at least close to that of the outer side (face of the uncovered glazing). It is thus, according to the invention, to provide a glass article having a good compromise between the external reflection and the internal reflection.
- stack side we mean the face of the glazing on which the stack is placed.
- glass side is meant the face of the glazing opposite to that on which the stack is placed, in principle not covered.
- outer face or “external” and “inner face” or (“internal") refer to the position of the glazing or glass article when it equips the building. or the vehicle.
- the glass and glazing articles according to the invention have energy insulation properties in accordance with those required in the field, in particular a solar factor g close to and preferably less than 50% in certain configurations.
- the object of the present invention is to provide a transparent glass article and a solar control glazing comprising such an article, in particular a solar protection glazing, making it possible to solve the technical problems described above.
- the present invention relates first of all to a glass article comprising at least one glass substrate, preferably of clear glass, on which a stack of layers is deposited, said stack of layers comprising the following succession, from the surface of said glass substrate: a first layer comprising silicon nitride, said layer optionally comprising another element chosen from among Al, Zr or B, more preferably Al, in which the N/Si atomic ratio is greater than 1.25, the physical thickness of said layer being between 5 nm and 80 nm, a layer comprising titanium nitride, the physical thickness of this layer being between 5 and 50 nm, a second layer comprising silicon nitride, said layer optionally comprising another element chosen from Al, Zr or B, more preferably Al, in which the atomic ratio N/Si is less than 1 ,25, the physical thickness of said layer being between 1 nm and 25 nm, and a third layer comprising silicon nitride, said layer optionally comprising another element chosen from Al, Zr
- Each of said layers is in direct contact with the previous one.
- the N/Si ratio of said first and third layers comprising silicon nitride is greater than or equal to 1.33 and preferably is between 1.33 and 1.60, limits included, for example between 1.33 and 1, 45, terminals included.
- the N/Si ratio of said second layer comprising silicon nitride is less than or equal to 1.00, preferably is less than or equal to 0.80 and very preferably is between 0.20 and 1.00, terminals included.
- the first layer comprising silicon nitride has a thickness of between 10 and 60 nm, preferably between 20 and 50 nm, in particular between 15 and 40 nm.
- the second layer comprising silicon nitride has a thickness of between 2 and 20 nm, more preferably between 2 and 15 nm, or even between 3 and 10 nm.
- the third layer comprising silicon nitride has a thickness of between 20 and 60 nm, preferably between 30 and 50 nm.
- the thickness of the layer comprising titanium nitride is between 10 and 40 nm, in particular between 15 and 30 nm.
- the layer comprising titanium nitride is thicker than the second layer comprising silicon nitride, and preferably at least twice as thick (physical thickness).
- the third layer comprising silicon nitride is thicker than the first layer comprising silicon nitride.
- the stack does not include layers based on Ag, Au, Pt, Cu, Ni or stainless steel.
- the item has only one layer including Titanium Nitride.
- the stack further comprises a protective outer layer, said protective outer layer preferably consisting essentially of a material chosen from titanium oxide, zirconium oxide or titanium and zirconium oxide.
- the stack is formed by the succession of said first, second and third layers comprising silicon nitride, the layer comprising titanium nitride and optionally said outer protective layer.
- the first layer comprising silicon nitride is deposited directly on the glass substrate and is in contact with the latter.
- the article is heat-tempered and/or bent.
- the invention relates in particular to solar glazing comprising a glass article as described above, in particular in the form of single glazing or laminated glazing, comprising in particular two glass substrates connected by a thermoplastic spacer, in particular a polyvinyl butyral (PVB) interlayer.
- PVB polyvinyl butyral
- Laminated glazing is conventionally understood to mean glazing comprising at least two glass substrates joined by a plastic sheet, for example PVB or polyurethane (PU).
- the glass article comprises a stack of layers capable of undergoing a heat treatment such as tempering, bending or more generally a heat treatment at temperatures between 600°C and 750°C, preferably between 680°C and 715°C, without loss of its optical and thermal properties.
- a heat treatment such as tempering, bending or more generally a heat treatment at temperatures between 600°C and 750°C, preferably between 680°C and 715°C, without loss of its optical and thermal properties.
- the glass article, according to the invention can thus be heat-tempered and/or bent.
- the invention also relates to glazing, in particular solar glazing, comprising a glass article as defined above, in particular glazing for buildings.
- the application more particularly targeted by the invention is glazing for the building, it is clear that other applications are possible, in particular in the glazing of vehicles (apart from the windshield where one requires a very high light transmission), such as the side windows, the car roof or the rear window.
- said first and third layers in which the N/Si ratio is greater than 1.25 are layers based on substantially stoichiometric or superstoichiometric nitrogen silicon nitride, preferably substantially stoichiometric.
- substantially stoichiometric is meant in particular and for example, for a layer consisting essentially of silicon nitride, the defined compound SisN4 (N/Si ratio of 1.33), By substantially, is meant for example that the measured value differs from less than 5% of this theoretical value.
- the layers comprising silicon nitride according to the invention are conventionally obtained by a magnetron-assisted cathode sputtering process from a metallic silicon target which may comprise a minor quantity of another element such as aluminum (most often around 8 atomic %) in a reactive atmosphere containing nitrogen.
- the second layer comprising silicon nitride is substoichiometric in nitrogen, that is to say that the N/Si ratio in the layer is less than 1.25 and preferably is less than 1.00, or even less than 0.80.
- the first, second and third layers comprising silicon nitride mainly comprise silicon and nitrogen as main constituents.
- silicon and nitrogen together represent more than 50%, even more than 70% or even more than 80% of the atoms present in the layer, even more than 90% of the atoms present in the layer, the remainder preferably being at least one element chosen from aluminium, boron or zirconium, more preferably aluminium.
- said layers consist essentially of silicon and nitrogen and optionally of at least one element chosen from among aluminum, boron or zirconium, preferably aluminum.
- said layers comprising silicon nitride consist of silicon and nitrogen and optionally of at least one element chosen from among aluminum, boron or zirconium, preferably aluminum, apart from the inevitable impurities.
- Said layers comprising silicon nitride are in principle oxygen-free except for inevitable impurities.
- they comprise less than 5% molar elemental oxygen, in particular less than 1% molar elemental oxygen.
- the layer comprising titanium nitride according to the invention preferably comprises more than 80% or even more than 90% by weight of titanium nitride.
- the layers comprising titanium nitride consist essentially of titanium nitride.
- the titanium nitride according to the invention is not necessarily stoichiometric (Ti/N atomic ratio of 1) but can also be over- or under-stoichiometric. According to an advantageous mode, the N/Ti ratio is between 1 and 1.2. Also, the titanium nitride according to the invention can comprise a minor quantity of oxygen, for example between 1 and 10% molar of oxygen, in particular between 1 and 5% molar of oxygen.
- the titanium nitride layers according to the invention correspond to the general formula TiN x O y , in which 1.00 ⁇ x ⁇ 1.20 and in which 0.01 ⁇ y ⁇ 0.10.
- the contents of the various elements present in the layers described previously and in particular the N/Si ratio, can be measured according to any known technique.
- the coatings according to the invention are conventionally deposited by deposition techniques of the magnetic field-assisted vacuum sputtering type of a cathode of the material or of a precursor of the material to be deposited, often called the technique of magnetron sputtering in the domain.
- deposition techniques of the magnetic field-assisted vacuum sputtering type of a cathode of the material or of a precursor of the material to be deposited often called the technique of magnetron sputtering in the domain.
- Such a technique is now conventionally used, in particular when the coating to be deposited consists of a stack of successive layers with thicknesses of a few nanometers or a few tens of nanometers.
- underlayer and overlayer reference is made in the present description to the respective position of said layers with respect to the functional layer(s) in the stack, said stack being supported by the glass substrate taken as a reference.
- the underlayer is generally the layer in contact with the glass substrate and the overlayer is the outermost layer of the stack, facing away from the substrate.
- the application more particularly targeted by the invention is glazing for the building
- other applications are possible, in particular in the glazing of vehicles (apart from the windshield where one requires a very high light transmission), such as the side glasses, the car roof, the rear window.
- the invention and its advantages are described in more detail, below, by means of the non-limiting examples below, according to the invention and comparative. Throughout the examples and the description, the thicknesses given are physical.
- All the substrates are made of clear glass, 4 mm thick, of the Planilux® type marketed by the company Saint-Gobain Glass France.
- All the layers according to these examples are deposited in a known manner by sputtering assisted by a magnetic field (often called a magnetron).
- the various successive layers are deposited in the successive compartments of the sputtering device, each compartment being provided with a specific metallic target made of Si, or Ti, under conditions chosen for the deposition of a specific layer of stacking.
- the so-called "stoichiometric" silicon nitride layers are deposited in the compartment of the device from metallic silicon targets (doped with 8% in mole of aluminum), in a reactive atmosphere containing nitrogen (40% Ar and 60% N2 by volume).
- the silicon nitride layers therefore contain a little aluminum, but are denoted SisN4:Al for convenience, knowing that the actual stoichiometry can be significantly different, in particular because of this doping (see the explanations previously provided).
- the titanium nitride layer is deposited from the sputtering of a metallic Ti target in an atmosphere of nitrogen and argon in a reactive atmosphere containing 75% Ar and 25% ix ⁇ by volume.
- Example 3 is identical to Example 2 but according to the invention an additional layer of silicon nitride called sub-stoichiometric in nitrogen (N/Si ratio ⁇ 1.25), denoted SiN y :Al, is deposited above above the TiN layer by means of another compartment of the device from the same target of metallic silicon doped with 8% in mole of aluminum, in a reactive atmosphere depleted in nitrogen and containing 95% of Ar and 5% N2, by volume.
- SiN y sub-stoichiometric in nitrogen
- the glass substrate was thus covered successively with a stack of layers comprising a functional layer of titanium nitride (denoted for convenience TiN thereafter even if the actual stoichiometry of the layer is not necessarily this one) surrounded by layers of silicon nitride SisN4:Al stoichiometric (example 2 comparative) and a layer of silicon nitride SiN y :Al under stoichiometric interlayer (example 3 according to the invention).
- the deposition conditions were adjusted according to conventional techniques for magnetron deposition to obtain different stacks, the succession of layers and their thicknesses (in nanometers nm) of which is reported in Table 1 below, from the surface of the glass :
- the N/Si ratio in the layers of stoichiometric silicon nitride Si 3 N4 :Al, as evaluated by X-ray spectrophotometry (XPS), is of the order of 1.40 and close to the theoretical value (on the based on the defined compounds AIN and Si 3 N4).
- the N/Si ratio in the substoichiometric SiN y :Al silicon nitride layer of example 3 according to the invention is of the order of 0.6.
- the measurements are carried out in accordance with the European standard NF EN 410 (2011). More specifically, the light transmission TL and the light reflections on the side of the face supporting the stack RL C and on the side of the face with the bare glass RL V are measured between 380 and 780 nm depending on the illuminant Des.
- the colorimetry parameters a* and b* (in transmission and in external reflection) are measured according to the international colorimetry model (L, a*, b*).
- the thermal insulation properties of the glazing are evaluated by determining the solar factor g, according to the conditions described in standard NF EN 410 (2011), the selectivity S being the ratio /g. B -Results
- the single glazing obtained according to the comparative invention 1 and example 3 have a comparable light transmission and a strong external reflection (glass face side) as well as quite similar colorimetric properties in transmission and in external reflection.
- Example 3 according to the invention however, has a much lower interior light reflection (equal to 8%), which avoids a mirror effect of the glazing in interior and night vision.
- Such characteristics make such glazing suitable for use allowing unobstructed vision from the inside to the outside of the building equipped with such glazing, whatever the external lighting conditions.
- the single glazing obtained according to the comparative invention 2 and example 3 have comparable optical properties and in particular a strong external reflection and a weak internal reflection, as desired.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Treatment Of Glass (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX2023007894A MX2023007894A (es) | 2020-12-31 | 2021-12-21 | Acristalamiento de control solar que comprende una pelicula delgada a base de nitruro de titanio y una pelicula de nitruro de silicio sub-estequiometrico en nitrogeno. |
CONC2023/0008372A CO2023008372A2 (es) | 2020-12-31 | 2023-06-27 | Acristalamiento de control solar que comprende una película delgada a base de nitruro de titanio y una película de nitruro de silicio sub-estequiométrico en nitrógeno |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FRFR2014302 | 2020-12-31 | ||
FR2014302A FR3118440B1 (fr) | 2020-12-31 | 2020-12-31 | Vitrage antisolaire comprenant une couche mince à base de nitrure de titane et une couche de nitrure de silicium sous-stœchiométriques en azote. |
Publications (1)
Publication Number | Publication Date |
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WO2022144518A1 true WO2022144518A1 (fr) | 2022-07-07 |
Family
ID=74759086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2021/052422 WO2022144518A1 (fr) | 2020-12-31 | 2021-12-21 | Vitrage antisolaire comprenant une couche mince a base de nitrure de titane et une couche de nitrure de silicium sous-stoechiometriques en azote |
Country Status (4)
Country | Link |
---|---|
CO (1) | CO2023008372A2 (fr) |
FR (1) | FR3118440B1 (fr) |
MX (1) | MX2023007894A (fr) |
WO (1) | WO2022144518A1 (fr) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05124839A (ja) | 1991-10-31 | 1993-05-21 | Central Glass Co Ltd | 熱的加工可能な断熱ガラス |
WO2001021540A1 (fr) | 1999-09-23 | 2001-03-29 | Saint-Gobain Glass France | Vitrage muni d'un empilement de couches minces agissant sur le rayonnement solaire |
WO2008017723A1 (fr) | 2006-08-11 | 2008-02-14 | Von Ardenne Anlagentechnik Gmbh | Système de couches à conditionnement thermique de contrôle de l'insolation et procédé pour sa réalisation |
WO2009112759A2 (fr) | 2008-02-27 | 2009-09-17 | Saint-Gobain Glass France | Vitrage antisolaire presentant un coefficient de transmission lumineuse ameliore |
DE102014114330A1 (de) | 2014-10-02 | 2016-04-07 | Von Ardenne Gmbh | Solar-Control-Schichtsystem mit neutraler schichtseitiger Reflexionsfarbe und Glaseinheit |
WO2018129125A1 (fr) * | 2017-01-05 | 2018-07-12 | Guardian Glass, LLC | Article revêtu traitable thermiquement comprenant des couches réfléchissant les infrarouges à base de nitrure de titane et de nickel-chrome |
WO2018129135A1 (fr) | 2017-01-05 | 2018-07-12 | Guardian Glass, LLC | Article revêtu pouvant être traité thermiquement, présentant au moins une couche réfléchissant les infrarouges, à base de nitrure de titane |
WO2018156568A1 (fr) * | 2017-02-23 | 2018-08-30 | Guardian Glass, LLC | Article revêtu traitable thermiquement comprenant des couches réfléchissant les infrarouges à base de nitrure de titane et d'ito |
WO2019002737A1 (fr) | 2017-06-26 | 2019-01-03 | Saint-Gobain Glass France | Vitrage a proprietes antisolaires comprenant une couche d'oxynitrure de titane |
FR3090622A1 (fr) * | 2018-12-21 | 2020-06-26 | Saint-Gobain Glass France | Vitrage de contrôle solaire comprenant deux couches à base de nitrure de titane |
-
2020
- 2020-12-31 FR FR2014302A patent/FR3118440B1/fr active Active
-
2021
- 2021-12-21 WO PCT/FR2021/052422 patent/WO2022144518A1/fr active Application Filing
- 2021-12-21 MX MX2023007894A patent/MX2023007894A/es unknown
-
2023
- 2023-06-27 CO CONC2023/0008372A patent/CO2023008372A2/es unknown
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05124839A (ja) | 1991-10-31 | 1993-05-21 | Central Glass Co Ltd | 熱的加工可能な断熱ガラス |
WO2001021540A1 (fr) | 1999-09-23 | 2001-03-29 | Saint-Gobain Glass France | Vitrage muni d'un empilement de couches minces agissant sur le rayonnement solaire |
WO2008017723A1 (fr) | 2006-08-11 | 2008-02-14 | Von Ardenne Anlagentechnik Gmbh | Système de couches à conditionnement thermique de contrôle de l'insolation et procédé pour sa réalisation |
WO2009112759A2 (fr) | 2008-02-27 | 2009-09-17 | Saint-Gobain Glass France | Vitrage antisolaire presentant un coefficient de transmission lumineuse ameliore |
DE102014114330A1 (de) | 2014-10-02 | 2016-04-07 | Von Ardenne Gmbh | Solar-Control-Schichtsystem mit neutraler schichtseitiger Reflexionsfarbe und Glaseinheit |
WO2018129125A1 (fr) * | 2017-01-05 | 2018-07-12 | Guardian Glass, LLC | Article revêtu traitable thermiquement comprenant des couches réfléchissant les infrarouges à base de nitrure de titane et de nickel-chrome |
WO2018129135A1 (fr) | 2017-01-05 | 2018-07-12 | Guardian Glass, LLC | Article revêtu pouvant être traité thermiquement, présentant au moins une couche réfléchissant les infrarouges, à base de nitrure de titane |
WO2018156568A1 (fr) * | 2017-02-23 | 2018-08-30 | Guardian Glass, LLC | Article revêtu traitable thermiquement comprenant des couches réfléchissant les infrarouges à base de nitrure de titane et d'ito |
WO2019002737A1 (fr) | 2017-06-26 | 2019-01-03 | Saint-Gobain Glass France | Vitrage a proprietes antisolaires comprenant une couche d'oxynitrure de titane |
FR3090622A1 (fr) * | 2018-12-21 | 2020-06-26 | Saint-Gobain Glass France | Vitrage de contrôle solaire comprenant deux couches à base de nitrure de titane |
Also Published As
Publication number | Publication date |
---|---|
MX2023007894A (es) | 2023-07-10 |
FR3118440B1 (fr) | 2022-12-23 |
CO2023008372A2 (es) | 2023-09-08 |
FR3118440A1 (fr) | 2022-07-01 |
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