WO2013167518A3 - Céramique au nitrure de silicium et son procédé de fabrication - Google Patents

Céramique au nitrure de silicium et son procédé de fabrication Download PDF

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Publication number
WO2013167518A3
WO2013167518A3 PCT/EP2013/059357 EP2013059357W WO2013167518A3 WO 2013167518 A3 WO2013167518 A3 WO 2013167518A3 EP 2013059357 W EP2013059357 W EP 2013059357W WO 2013167518 A3 WO2013167518 A3 WO 2013167518A3
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Prior art keywords
silicon nitride
additive
nitride ceramic
production
prepared
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Ceased
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PCT/EP2013/059357
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German (de)
English (en)
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WO2013167518A2 (fr
Inventor
Karl Berroth
Frank STEGNER
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Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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Publication of WO2013167518A2 publication Critical patent/WO2013167518A2/fr
Publication of WO2013167518A3 publication Critical patent/WO2013167518A3/fr
Anticipated expiration legal-status Critical
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    • 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
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    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
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Abstract

La présente invention concerne une céramique au nitrure de silicium frittée, qui constitue en particulier un composant d'un palier à roulement ou d'un palier lisse. L'invention concerne en outre un procédé de fabrication d'une telle céramique au nitrure de silicium. Ce procédé comporte une première étape consistant à préparer du nitrure de silicium Si3N4. Le procédé consiste ensuite à préparer un premier additif présentant une structure pérovskite. Ce premier additif est un composé chimique du type perovskite qui présente une structure telle que CaTiO3. Cette structure est déjà présente avant un processus de frittage, de sorte que le premier additif peut être qualifié de présynthétisé. Le premier additif sert par ailleurs d'agent de frittage. Une autre étape du procédé selon l'invention consiste à mélanger le nitrure de silicium et le premier additif pour obtenir un mélange. Ce mélange est ensuite façonné pour produire un comprimé cru qui est alors fritté pour produire une céramique au nitrure de silicium.
PCT/EP2013/059357 2012-05-10 2013-05-06 Céramique au nitrure de silicium et son procédé de fabrication Ceased WO2013167518A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012207802A DE102012207802A1 (de) 2012-05-10 2012-05-10 Siliziumnitridkeramik sowie Verfahren zu deren Herstellung
DE102012207802.9 2012-05-10

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WO2013167518A2 WO2013167518A2 (fr) 2013-11-14
WO2013167518A3 true WO2013167518A3 (fr) 2014-01-03

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JP7164658B2 (ja) * 2020-09-03 2022-11-01 Ntn株式会社 窒化ケイ素焼結体、それを用いた転動体、および軸受

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JPS53141313A (en) * 1977-05-16 1978-12-09 Tokyo Shibaura Electric Co Method of making sintered ceramics
JPS6077173A (ja) * 1983-09-30 1985-05-01 工業技術院長 窒化けい素焼結体およびその製造法
JPS60186469A (ja) * 1984-03-02 1985-09-21 日本セメント株式会社 窒化ケイ素質焼結体の製造方法
US4654315A (en) * 1985-04-08 1987-03-31 Gte Products Corporation Low dielectric loss silicon nitride based material

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JPS523647B2 (fr) 1972-10-24 1977-01-29
DE3734274C2 (de) 1986-10-09 1996-07-11 Nippon Denso Co Keramische Glühkerze und Verfahren zu deren Herstellung
JP2764589B2 (ja) 1988-11-21 1998-06-11 日本特殊陶業株式会社 ベアリング用窒化珪素基焼結体
US5126295A (en) 1989-06-07 1992-06-30 Denki Kagaku Kogyo Kabushiki Kaisha Silicon nitride powder, silicon nitride sintered body and processes for their production
US5439856A (en) 1992-09-08 1995-08-08 Kabushiki Kaisha Toshiba High thermal conductive silicon nitride sintered body and method of producing the same
CH685051A5 (de) * 1993-04-15 1995-03-15 Lonza Ag Siliciumnitrid-Sinterschleifkorn und Verfahren zu dessen Herstellung.
JP2829229B2 (ja) 1993-10-25 1998-11-25 株式会社東芝 窒化ケイ素系セラミックス焼結体
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JPS53141313A (en) * 1977-05-16 1978-12-09 Tokyo Shibaura Electric Co Method of making sintered ceramics
JPS6077173A (ja) * 1983-09-30 1985-05-01 工業技術院長 窒化けい素焼結体およびその製造法
JPS60186469A (ja) * 1984-03-02 1985-09-21 日本セメント株式会社 窒化ケイ素質焼結体の製造方法
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