SU324820A1 - Abrasive material elbor - Google Patents
Abrasive material elborInfo
- Publication number
- SU324820A1 SU324820A1 SU1476053A SU1476053A SU324820A1 SU 324820 A1 SU324820 A1 SU 324820A1 SU 1476053 A SU1476053 A SU 1476053A SU 1476053 A SU1476053 A SU 1476053A SU 324820 A1 SU324820 A1 SU 324820A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- boron nitride
- elbor
- abrasive
- nitrides
- abrasive material
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
- C04B35/583—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on boron nitride
- C04B35/5831—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on boron nitride based on cubic boron nitrides or Wurtzitic boron nitrides, including crystal structure transformation of powder
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/06—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
- C01B21/064—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with boron
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Ceramic Products (AREA)
Description
Известен абразивный материал - боразон, представл ющий собой кубический нитрид бора в сочетании с нитридами металлов - катализаторов, образурощихс в процессе синтеза в качестве побочных фаз. Однако боразон тер ет свою прочность при выдержке на воздухе, в воде и в кислотах в результате гидролиза побочных фаз - нитридов металловкатализаторов , вследствие чего не может быть использован в абразивном инструменте.A known abrasive material is borazon, which is a cubic boron nitride in combination with metal nitrides - catalysts, which are formed during synthesis as side phases. However, borazon loses its strength when exposed to air, in water and in acids as a result of hydrolysis of side phases - metal catalysts nitrides, as a result of which it cannot be used in an abrasive tool.
Не вс кий нитрид бора алмазоподобной структуры может примен тьс дл изготовлени абразивного инстру-мента. Непригоден дл этих целей, например, вгорцитный нитрид бора, цолучаемый в результате ударного воздействи на гексагональный нитрид бора, вследствие высокой дисперсности получаемого продукта (2-3 мк и менее). Размер зерна нитрида бора вл етс не единственной причиной , ограничивающей его применение в абразивиом инструменте. В процессе синтеза кубического нитрида бора нар ду с последним образуютс и некоторые побочные вещества , располагающиес в поликристаллическом зерне В-BN по границам срастани его монокристаллов, прежде всего нитриды и бориды металла-катализатора.Not all boron nitride of diamond-like structure can be used to make abrasive tools. It is unsuitable for these purposes, for example, boron nitride, produced as a result of impact on hexagonal boron nitride, due to the high dispersion of the obtained product (2-3 microns or less). Boron nitride grain size is not the only reason limiting its use in abrasive tools. In the process of the synthesis of cubic boron nitride, along with the latter, some side substances are formed, which are located in the polycrystalline grain B-BN along the fusion boundaries of its single crystals, primarily nitrides and borides of the metal catalyst.
действию атмосферной влаги и компонентов св зок, примен емых дл изготовлени абразивного инструмента, то нитриды металловкатализаторов активно гидролизуютс влагой воздуха уже при обычных температурах. Доступ компонентов св зок к нитриду металлакатализатора , расположенному но границам монокристаллов в поликристаллическом нитриде бора, и их химическое взаимодействие возрастают с увеличением температуры при обжиге абразивных изделий, в результате чего разрушаетс зерно кубического нитрида бора и само абразивное изделие.to the action of atmospheric moisture and binder components used for the manufacture of an abrasive tool, the nitrides of the metal catalysts are actively hydrolyzed by the moisture of air already at normal temperatures. The access of the binder components to the metal-catalytic nitride located on the edges of single crystals in polycrystalline boron nitride and their chemical interaction increases with increasing temperature during the firing of abrasive products, as a result of which the cubic boron nitride grain and the abrasive product itself are destroyed.
Дл обеспечени сохранности абразивных свойств и устойчивости во влажных средах предлагаетс новый сверхтвердый абразивный материал-эльбор. Он имеет поликристаллическое строенне и содержит 90-96% кубического нитрида бора, 0,5-0,1% гексагонального нитрнда бора и 3,5-9,0% негидролизуемых побочных фаз. Нобочиые фазы представл ют собой негидролизуемые бориды и нитриды металлов I, II групп периодической системы и переходных металлов, а также бор. Эльбор, благодар указанному фазовому составу, не гндролизуетс влагой воздуха , вл етс устойчивым при выдержке в воде и кислотах, что обусловливает его высокую механическою прочность и абразивнуюTo ensure the safety of abrasive properties and stability in wet environments, a new superhard abrasive material elbor is proposed. It has a polycrystalline structure and contains 90-96% of cubic boron nitride, 0.5-0.1% of hexagonal boron nitride, and 3.5-9.0% of non-hydrolysable side phases. The nobium phases are non-hydrolysable borides and nitrides of metals of the I, II groups of the periodic system and transition metals, as well as boron. Elbor, due to the specified phase composition, is not hydrolyzed by air moisture, is stable when exposed to water and acids, which makes it highly mechanical and abrasive.
способность вплоть до температур 1000- 1300°С.capacity up to temperatures of 1000–1300 ° C.
Пример. Шлифпорошок эльбора зернистостью -125+100 мкм, содержащий 93,4% кубического нитрида бора, 0,8% гексагонального «итрида бора и 5,8% гексаборида магни , имеюш,ий механическую прочность на раздавливание 420 г, выдерживают во влажном воздухе в течение 30 суток. Механическа прочность после выдержки во влажном воздухе 410 г. Боразон, испытанный в аналогичных услови х, тер ет механическую прочность на 50,%.Example. Elbor grinding powder with a grain size of -125 + 100 μm, containing 93.4% of cubic boron nitride, 0.8% hexagonal boron itridide and 5.8% magnesium hexaboride, having a mechanical crush strength of 420 g, is kept in moist air for 30 days. Mechanical strength after exposure to moist air of 410 g. Borazon, tested under similar conditions, loses mechanical strength by 50%.
Абразивный материал - эльбор широко примен етс в точном машиностроении, приборостроении и других отрасл х науки и техники при шлифовании, доводке заточки высокотвердых легированных конструкционных сталей.Abrasive material - elbor is widely used in precision engineering, instrument making and other fields of science and technology in grinding, fine-tuning sharpening of high-hard alloyed structural steels.
Claims (3)
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1476053A SU324820A1 (en) | 1970-10-12 | 1970-10-12 | Abrasive material elbor |
CH462771A CH559146A5 (en) | 1970-10-12 | 1971-03-31 | |
PL1971147294A PL76371B1 (en) | 1970-10-12 | 1971-04-01 | |
DE2116020A DE2116020C3 (en) | 1970-10-12 | 1971-04-01 | Cubic Boron Nitride-Based Abrasives and Process for their Manufacture '' |
ZA712251A ZA712251B (en) | 1970-10-12 | 1971-04-07 | Method of producing cubic boron nitride and abrasive material based thereon |
HUVE650A HU163062B (en) | 1970-10-12 | 1971-04-09 | |
BG17314A BG17855A1 (en) | 1970-10-12 | 1971-04-10 | |
CS7100002809A CS184855B1 (en) | 1970-10-12 | 1971-04-19 | Grinding agent based on isometric boron nitride and method for making the same |
GB2625971*A GB1335909A (en) | 1970-10-12 | 1971-04-19 | Method of producing cubic boron nitride and abrasive material based thereon |
SE7105624A SE372495B (en) | 1970-10-12 | 1971-04-30 | |
FR7122869A FR2098009A5 (en) | 1970-10-12 | 1971-06-23 | |
DD156229A DD98271A1 (en) | 1970-10-12 | 1971-07-02 | |
DD165860A DD99527A1 (en) | 1970-10-12 | 1971-07-04 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1476053A SU324820A1 (en) | 1970-10-12 | 1970-10-12 | Abrasive material elbor |
Publications (1)
Publication Number | Publication Date |
---|---|
SU324820A1 true SU324820A1 (en) | 1976-07-05 |
Family
ID=20457382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1476053A SU324820A1 (en) | 1970-10-12 | 1970-10-12 | Abrasive material elbor |
Country Status (12)
Country | Link |
---|---|
BG (1) | BG17855A1 (en) |
CH (1) | CH559146A5 (en) |
CS (1) | CS184855B1 (en) |
DD (2) | DD98271A1 (en) |
DE (1) | DE2116020C3 (en) |
FR (1) | FR2098009A5 (en) |
GB (1) | GB1335909A (en) |
HU (1) | HU163062B (en) |
PL (1) | PL76371B1 (en) |
SE (1) | SE372495B (en) |
SU (1) | SU324820A1 (en) |
ZA (1) | ZA712251B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE805525A (en) * | 1972-10-02 | 1974-04-01 | Vnii Abrazivov | EXTRA-HARD COMPOSITE MATERIAL BASED ON CUBIC BORON NITRIDE AND PROCESS FOR OBTAINING THIS MATERIAL |
DE2702082C3 (en) * | 1976-01-30 | 1982-02-25 | Institut fizičeskoj chimii Akademii Nauk SSSR, Moskva | Polycrystalline Superhard Cubic Boron Nitride Material and Process for Its Manufacture |
DE3030362C2 (en) * | 1980-08-11 | 1986-11-27 | Institut sverchtverdych materialov Akademii Nauk Ukrainskoj SSR, Kiew/Kiev | Process for the production of cubic boron nitride |
FR2495597A1 (en) * | 1980-08-26 | 1982-06-11 | Inst Sverkhtverdykh Mat | Cubic boron nitride of larger particle size - produced by addition of salt having water of crystallisation to the initial charge contg. the hexagonal form and initiator |
US4349517A (en) * | 1980-10-21 | 1982-09-14 | Lysanov Vladislav S | Method of producing cubic boron nitride |
CN117925074B (en) * | 2024-03-25 | 2024-05-17 | 南京盛凯新材料有限公司 | High-wear-resistance UV matte coating and preparation process thereof |
-
1970
- 1970-10-12 SU SU1476053A patent/SU324820A1/en active
-
1971
- 1971-03-31 CH CH462771A patent/CH559146A5/xx not_active IP Right Cessation
- 1971-04-01 PL PL1971147294A patent/PL76371B1/pl unknown
- 1971-04-01 DE DE2116020A patent/DE2116020C3/en not_active Expired
- 1971-04-07 ZA ZA712251A patent/ZA712251B/en unknown
- 1971-04-09 HU HUVE650A patent/HU163062B/hu unknown
- 1971-04-10 BG BG17314A patent/BG17855A1/xx unknown
- 1971-04-19 CS CS7100002809A patent/CS184855B1/en unknown
- 1971-04-19 GB GB2625971*A patent/GB1335909A/en not_active Expired
- 1971-04-30 SE SE7105624A patent/SE372495B/xx unknown
- 1971-06-23 FR FR7122869A patent/FR2098009A5/fr not_active Expired
- 1971-07-02 DD DD156229A patent/DD98271A1/xx unknown
- 1971-07-04 DD DD165860A patent/DD99527A1/xx unknown
Also Published As
Publication number | Publication date |
---|---|
CH559146A5 (en) | 1975-02-28 |
ZA712251B (en) | 1972-06-28 |
PL76371B1 (en) | 1975-02-28 |
DE2116020C3 (en) | 1979-02-01 |
SE372495B (en) | 1974-12-23 |
DE2116020A1 (en) | 1972-04-13 |
HU163062B (en) | 1973-05-28 |
CS184855B1 (en) | 1978-09-15 |
GB1335909A (en) | 1973-10-31 |
DD99527A1 (en) | 1973-08-20 |
DD98271A1 (en) | 1973-06-12 |
DE2116020B2 (en) | 1976-02-26 |
FR2098009A5 (en) | 1972-03-03 |
BG17855A1 (en) | 1974-03-05 |
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