CN108675642A - A kind of polycrystalline phase devitrified glass - Google Patents
A kind of polycrystalline phase devitrified glass Download PDFInfo
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- CN108675642A CN108675642A CN201810892158.2A CN201810892158A CN108675642A CN 108675642 A CN108675642 A CN 108675642A CN 201810892158 A CN201810892158 A CN 201810892158A CN 108675642 A CN108675642 A CN 108675642A
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- CN
- China
- Prior art keywords
- devitrified glass
- polycrystalline phase
- phase devitrified
- parts
- polycrystalline
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
- C03C10/16—Halogen containing crystalline phase
Abstract
The invention discloses a kind of polycrystalline phase devitrified glasses, include following ingredient by weight：The principal crystalline phase of 45 70 parts of silica, 38 parts of potassium oxides, 20 25 parts of calcium oxide, 10 12 parts of fluorine, 68 parts of sodium oxide molybdenas, 6 10 parts of phosphorus pentoxides, 13 parts of aluminium oxide, 68 parts of zirconium oxides, 1.4 3 parts of zinc oxide, polycrystalline phase devitrified glass is Na4~3K2~3Ca5(Si12O30)F4And Ca5F(PO4)3.Translucent beautiful matter shape is presented in the polycrystalline phase devitrified glass perception of the present invention, and moisture and wax sense, hardness, toughness and wearability with natural jade are all good.
Description
Technical field
The present invention relates to glass-ceramic field, more particularly to a kind of polycrystalline phase devitrified glass.
Background technology
Devitrified glass is also known as glass-ceramic, prepared by being controlling crystallizing after melting raw material solid material, there is glass
The double grading of glass and ceramics.Devitrified glass is made of crystal, and atomic arrangement is regular, and therefore, devitrified glass is than ceramics
Brightness is high, and stronger than glass toughness.Devitrified glass has concentrated triple advantages of glass, ceramics and lithotome, better than natural
Stone material and ceramics can be used for building curtain wall and indoor high-grade decoration, can also do structural material mechanically, on electronics, electrician
Insulating materials, the heat-resisting row vessel of baseboard material, micro-wave oven, chemical industry and the wear-resisting material of anti-corrosion material and mine of large scale integrated circuit
Material etc., becomes the substitute products of ideal high-grade stone.
Existing devitrified glass is difficult to take into account a variety of different mechanical properties such as hardness, toughness and wearability, reduces micro-
The machinability of crystal glass, causes the application range of devitrified glass smaller, seriously inhibits the development of devitrified glass industry.
Invention content
It is an object of the present invention to provide a kind of hardness, the new skills of toughness and all good polycrystalline phase devitrified glass of wearability
Art scheme.
According to the first aspect of the invention, a kind of polycrystalline phase devitrified glass is provided.
The polycrystalline phase devitrified glass includes following ingredient by weight：
The principal crystalline phase of the polycrystalline phase devitrified glass is Na4~3K2~3Ca5(Si12O30)F4And Ca5F(PO4)3。
Optionally, the Na4~3K2~3Ca5(Si12O30)F4And Ca5F(PO4)3Weight ratio be (3-4):(1-2).
Optionally, the Na4~3K2~3Ca5(Si12O30)F4With laminated structure, the Ca5F(PO4)3With needle-shaped knot
Structure, and the Na4~3K2~3Ca5(Si12O30)F4With the Ca5F(PO4)3Constitute reticular structure.
Optionally, the Na4~3K2~3Ca5(Si12O30)F4A length of 1 μm -25 μm of crystal, the Na4~3K2~3Ca5
(Si12O30)F4Crystal thickness be less than or equal to 1 μm, the Ca5F(PO4)3Crystal length be less than or equal to 100 μm.
Optionally, the polycrystalline phase devitrified glass further includes 1-3 parts of sodium nitrate by weight.
Optionally, the impact flexibility of the polycrystalline phase devitrified glass is 5.2kj/cm2~5.8kj/cm2。
Optionally, the Mohs' hardness of the polycrystalline phase devitrified glass is 6.5~7.5.
Optionally, the bending strength of the polycrystalline phase devitrified glass is 90MPa~160MPa.
Optionally, the compression strength of the polycrystalline phase devitrified glass is 600MPa~800MPa.
Optionally, the wearability of the polycrystalline phase devitrified glass is 0.03g/cm2-0.06g/cm2。
The principal crystalline phase of the polycrystalline phase devitrified glass of the present invention is Na4~3K2~3Ca5(Si12O30)F4(canasite) and Ca5F
(PO4)3(fluor-apatite) effectively increases the hardness, toughness and wearability of polycrystalline phase devitrified glass so that devitrified glass is easy
Further processing molding, can be widely used in the fields such as pipeline, liner plate, valve and brake disc.
Translucent beautiful matter shape, moisture and wax with natural jade is presented in the polycrystalline phase devitrified glass perception of the present invention
Sense, hardness, toughness and wearability are all good.
Specific implementation mode
It will be described in the various exemplary embodiments of the present invention now.It should be noted that：Unless specifically stated otherwise, otherwise
Component and the positioned opposite of step that illustrates in these embodiments, numerical expression and numerical value do not limit the scope of the invention.
It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to the present invention
And its application or any restrictions that use.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
In shown here and discussion all examples, any occurrence should be construed as merely illustrative, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It is difficult to take into account a variety of different mechanical properties such as hardness, toughness and wearability to solve existing devitrified glass
Problem, the present invention provides a kind of polycrystalline phase devitrified glasses.
The each component of the polycrystalline phase devitrified glass of the present invention by weight can be defined below：
Silica assigns the good chemical stability of devitrified glass and thermal stability, can improve the intensity of devitrified glass,
The coefficient of expansion of devitrified glass is reduced, therefore the content of silica is set as：45-70 parts of silica.
Potassium oxide is good cosolvent, can improve the glossiness of devitrified glass, promote the fusing and clarification of glass metal, also
The viscosity of glass metal can be reduced, therefore the content of potassium oxide is set as：3-8 parts of potassium oxides.
Calcium oxide can reduce the high temperature viscosity of glass metal, promote the fusing and clarification of glass metal, increase the change of devitrified glass
Stability, mechanical strength and hardness are learned, therefore the content of calcium oxide is set as：20-25 parts of calcium oxide.
Fluorine is a kind of excellent opacifiers, therefore the content of fluorine is set as：10-12 parts of fluorine.
Sodium oxide molybdena can reduce the viscosity of glass metal, promote the fusing and clarification of glass metal, therefore the content setting of sodium oxide molybdena
For：6-8 parts of sodium oxide molybdenas.
Phosphorus pentoxide is to form Ca5F(PO4)3The Nucleating Agent of crystalline phase, and the viscosity of glass melt can be reduced, contribute to
The melting of zirconium oxide, therefore the content of phosphorus pentoxide is set as：6-10 parts of phosphorus pentoxides.
Aluminium oxide can reduce the tendency towards devitrification of devitrified glass, improve chemical stability and mechanical strength and hardness, improve
Thermal stability reduces electrical insulating property, therefore the content of aluminium oxide is set as：1-3 parts of aluminium oxide.
Zirconium oxide can increase the chemical stability of devitrified glass, therefore the content of zirconium oxide is set as：6-8 parts of oxidations
Zirconium.
Zinc oxide can reduce the softening point temperature of devitrified glass, improve the chemical stability of devitrified glass, therefore zinc oxide
Content be set as：1.4-3 parts of zinc oxide.
The wearability of devitrified glass can be improved in sodium nitrate, therefore the content of sodium nitrate is set as：1-3 parts of sodium nitrate.
Experimental method used in following embodiments is conventional method unless otherwise specified, used material
And reagent, it is commercially available unless otherwise specified, the equipment used in experiment is ability unless otherwise specified
Equipment known to field technique personnel.
Under conditions of knowing specific component content, the polycrystalline phase crystallite of the present invention can be made by methods known in the art
Glass is optionally prepared as follows：
1, select quartz sand, fluorite, aluminium oxide, calcite, soda ash, potassium carbonate, sodium nitrate, phosphorus pentoxide, zirconium oxide,
In zinc oxide it is one or more as raw material provide polycrystalline phase devitrified glass at being grouped as.By the ingredient of embodiment in table 1
Proportioning calculates the dosage of raw material, and basestocks are mixed to get after weighing.
To those skilled in the art, it prepares the raw material used in polycrystalline phase devitrified glass and is not limited only to original disclosed above
The common raw materials such as potassium feldspar, albite or lime stone also may be selected in material.
2, basestocks at 1300 DEG C~1400 DEG C are melted to 16h~20h, glass metal is obtained after clarification.
3, it is put into mold after glass metal being made to the particle of 2mm~5mm, idiosome is made.
4, idiosome after 2h~6h is warming up to 500 DEG C~550 DEG C is kept the temperature to 1h~2h carry out coring processing, then is passed through
It crosses after 10min-30min is warming up to 600 DEG C~650 DEG C and keeps the temperature the secondary coring processing of 0.5h~1h progress, be then passed through 0.5h-
Heat preservation 0.5h-2h carries out a Crystallizing treatment after 1.5h is warming up to 700 DEG C -850 DEG C, heats up followed by by 10min-30min
0.5h-2h is kept the temperature after to 900 DEG C -950 DEG C carries out secondary crystallization processing.
5, at the uniform velocity annealing obtains polycrystalline phase devitrified glass.
Table 1 is the performance parameter table of the polycrystalline phase devitrified glass under heterogeneity composition.
As shown in table 1, polycrystalline phase devitrified glass of the invention has higher bending strength and compression strength, and hardness is high,
Impact flexibility is strong, and wearability is good.Finished product polycrystalline phase devitrified glass has moisture and the wax sense of natural jade, can be prepared into not
The proximate matter of similar shape and size is to facilitate processing.
Table 1
Although some specific embodiments of the present invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to illustrating, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above example.This hair
Bright range is defined by the following claims.
Claims (10)
1. a kind of polycrystalline phase devitrified glass, which is characterized in that include following ingredient by weight：
The principal crystalline phase of the polycrystalline phase devitrified glass is Na4~3K2~3Ca5(Si12O30)F4And Ca5F(PO4)3。
2. polycrystalline phase devitrified glass according to claim 1, which is characterized in that the Na4~3K2~3Ca5(Si12O30)F4With
Ca5F(PO4)3Weight ratio be (3-4):(1-2).
3. polycrystalline phase devitrified glass according to claim 1, which is characterized in that the Na4~3K2~3Ca5(Si12O30)F4Tool
There are laminated structure, the Ca5F(PO4)3With acicular texture, and the Na4~3K2~3Ca5(Si12O30)F4With the Ca5F
(PO4)3Constitute reticular structure.
4. polycrystalline phase devitrified glass according to claim 1, which is characterized in that the Na4~3K2~3Ca5(Si12O30)F4's
A length of 1 μm -25 μm of crystal, the Na4~3K2~3Ca5(Si12O30)F4Crystal thickness be less than or equal to 1 μm, the Ca5F(PO4)3
Crystal length be less than or equal to 100 μm.
5. polycrystalline phase devitrified glass according to claim 1, which is characterized in that the polycrystalline phase devitrified glass is by weight
Meter further includes 1-3 parts of sodium nitrate.
6. polycrystalline phase devitrified glass according to claim 1, which is characterized in that the impact of the polycrystalline phase devitrified glass is tough
Property is 5.2kj/cm2~5.8kj/cm2。
7. polycrystalline phase devitrified glass according to claim 1, which is characterized in that the Mohs of the polycrystalline phase devitrified glass is hard
Degree is 6.5~7.5.
8. polycrystalline phase devitrified glass according to claim 1, which is characterized in that the bending of the polycrystalline phase devitrified glass is strong
Degree is 90MPa~160MPa.
9. polycrystalline phase devitrified glass according to claim 1, which is characterized in that the pressure resistance of the polycrystalline phase devitrified glass
Degree is 600MPa~800MPa.
10. polycrystalline phase devitrified glass according to claim 1, which is characterized in that the polycrystalline phase devitrified glass it is wear-resisting
Property is 0.03g/cm2-0.06g/cm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810892158.2A CN108675642A (en) | 2018-08-07 | 2018-08-07 | A kind of polycrystalline phase devitrified glass |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810892158.2A CN108675642A (en) | 2018-08-07 | 2018-08-07 | A kind of polycrystalline phase devitrified glass |
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| Publication Number | Publication Date |
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| CN108675642A true CN108675642A (en) | 2018-10-19 |
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| CN201810892158.2A Withdrawn CN108675642A (en) | 2018-08-07 | 2018-08-07 | A kind of polycrystalline phase devitrified glass |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112138794A (en) * | 2020-09-27 | 2020-12-29 | 江苏富强特钢有限公司 | Lining plate of ball mill |
-
2018
- 2018-08-07 CN CN201810892158.2A patent/CN108675642A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112138794A (en) * | 2020-09-27 | 2020-12-29 | 江苏富强特钢有限公司 | Lining plate of ball mill |
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Application publication date: 20181019 |
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