JPS6487568A - Silicon nitride-based sintered body - Google Patents

Silicon nitride-based sintered body

Info

Publication number
JPS6487568A
JPS6487568A JP62247033A JP24703387A JPS6487568A JP S6487568 A JPS6487568 A JP S6487568A JP 62247033 A JP62247033 A JP 62247033A JP 24703387 A JP24703387 A JP 24703387A JP S6487568 A JPS6487568 A JP S6487568A
Authority
JP
Japan
Prior art keywords
sio2
oxide
group iiia
sintered body
iiia element
Prior art date
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.)
Pending
Application number
JP62247033A
Other languages
Japanese (ja)
Inventor
Shoji Kosaka
Kazunori Koga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyocera Corp
Original Assignee
Kyocera Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kyocera Corp filed Critical Kyocera Corp
Priority to JP62247033A priority Critical patent/JPS6487568A/en
Publication of JPS6487568A publication Critical patent/JPS6487568A/en
Pending legal-status Critical Current

Links

Landscapes

  • Ceramic Products (AREA)

Abstract

PURPOSE:To improve the bending strength and toughness of the title sintered body by dispersing a metal or its compd. in the composition wherein the molar ratio of the SiO2 to the oxide of a group IIIa element is specified in an Si3N4- SiO2-oxide of a group IIIa element based sintered body. CONSTITUTION:The metallic Nb, Ta, Ti, W, and Mo or their compds. are dispersed in the silicon nitride matrix wherein the molar ratio of the SiO2 to the oxide of a group IIIa element is controlled to >=1 in the three-component silicon nitride-based sintered body (Si3N4-SiO2-oxide of a group IIIa element). Since the metal to be added is hardly melted and deformed at high temp. and has a relatively low thermal expansion coefficient, the bending strength is not sufficiently increased only by adding the metals or their compds. to the three- component body. However, the toughness can be remarkably improved without deteriorating the bending strength by applying the metals or their compds. to the composition wherein the molar ratio of the SiO2 to the oxide of a group IIIa element is controlled to >=1, and sintering the composition.
JP62247033A 1987-09-30 1987-09-30 Silicon nitride-based sintered body Pending JPS6487568A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62247033A JPS6487568A (en) 1987-09-30 1987-09-30 Silicon nitride-based sintered body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62247033A JPS6487568A (en) 1987-09-30 1987-09-30 Silicon nitride-based sintered body

Publications (1)

Publication Number Publication Date
JPS6487568A true JPS6487568A (en) 1989-03-31

Family

ID=17157411

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62247033A Pending JPS6487568A (en) 1987-09-30 1987-09-30 Silicon nitride-based sintered body

Country Status (1)

Country Link
JP (1) JPS6487568A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0441571A2 (en) * 1990-02-09 1991-08-14 Ngk Insulators, Ltd. Silicon nitride sintered body and method of producing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0441571A2 (en) * 1990-02-09 1991-08-14 Ngk Insulators, Ltd. Silicon nitride sintered body and method of producing the same

Similar Documents

Publication Publication Date Title
KR890002159B1 (en) Silicon nitride ceramic sintered body
JPS6487568A (en) Silicon nitride-based sintered body
AU6569900A (en) Iron-nickel alloy with low thermal expansion coefficient and exceptional mechanical properties
JPS55131155A (en) High strength low thermal expansion alloy
JPS6487572A (en) Silicon nitride-based sintered body
JP4175808B2 (en) High strength molybdenum silicide material
JPH0244067A (en) Bn no-pressure sintered ceramic having excellent melting flacture resistance
US4927791A (en) Chromium carbide sintered body
EP0602243A4 (en) HIGHLY CORROSION-RESISTANT -g(a)-SIALON SINTER AND PRODUCTION THEREOF.
US5970306A (en) Method of manufacturing high temperature resistant shaped parts
JPS57207154A (en) Low thermal expansion invar type fe-ni alloy with superior weld crack resistance at high temperature
JP4069442B2 (en) Low thermal expansion alloy and low thermal expansion alloy plate
JPS6455352A (en) Heat-resisting alloy
JPS61266530A (en) Composite material
EP0305766A3 (en) Discontinuous fiber and particulate reinforced refractory metal composite
JP2603980B2 (en) High heat-insulating cast iron
JPS54150312A (en) Mo-containing sintered hard alloy
JP2742596B2 (en) Silicon nitride sintered body and method for producing the same
WO2001075987A8 (en) Piezoceramic bending converter
Sleptsov et al. Characteristics of the microstructure and strength of silicon nitride with rare-earth oxide additions
JP2732078B2 (en) Silicon nitride sintered body
Berger Improvement of the Material Properties in PSZ-Ceramics by In Situ Platelet Reinforcement
JPS57174402A (en) Coated superhard alloy material and its production
Tutorskaya et al. Copper--Titanium Alloy for Brazing Ceramics
CN1043959A (en) Especially big (just) frequency-temperature coefficient constant modulus alloy