JPS6476970A - Production of fiber reinforced silicon nitride-based ceramic - Google Patents

Production of fiber reinforced silicon nitride-based ceramic

Info

Publication number
JPS6476970A
JPS6476970A JP62233926A JP23392687A JPS6476970A JP S6476970 A JPS6476970 A JP S6476970A JP 62233926 A JP62233926 A JP 62233926A JP 23392687 A JP23392687 A JP 23392687A JP S6476970 A JPS6476970 A JP S6476970A
Authority
JP
Japan
Prior art keywords
silicon nitride
fibers
powder
cited
solvent
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
JP62233926A
Other languages
Japanese (ja)
Inventor
Yasuhiro Itsudo
Takeshi Yonezawa
Yoshiyuki Onuma
Takeshi Ando
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP62233926A priority Critical patent/JPS6476970A/en
Publication of JPS6476970A publication Critical patent/JPS6476970A/en
Pending legal-status Critical Current

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  • Ceramic Products (AREA)

Abstract

PURPOSE:To obtain a fiber reinforced silicon nitride ceramic having excellent mechanical characteristics and especially high toughness value, by blending silicon nitride powder with sintering auxiliary powder and fibers in a solvent to give slurry, freeze drying the slurry in vacuum and sintering. CONSTITUTION:Silicon nitride powder is blended with sintering auxiliary powder and fibers in a solvent to give slurry, which is dried by vacuum freeze drying and sintered. By applying vacuum freeze drying method, blended powder can be sintered while maintaining dispersion state of the fibers in the silicon nitride matrix uniform. The silicon nitride powder preferably contains a large amount of alpha type crystal. Yttria, titania, alumina, magnesia or compound oxides thereof may be cited as the sintering auxiliary. For example, short-fibers and filaments of silicon carbide may be cited as the fibers. Water and various kinds of organic solvents may be cited as the solvent.
JP62233926A 1987-09-18 1987-09-18 Production of fiber reinforced silicon nitride-based ceramic Pending JPS6476970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62233926A JPS6476970A (en) 1987-09-18 1987-09-18 Production of fiber reinforced silicon nitride-based ceramic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62233926A JPS6476970A (en) 1987-09-18 1987-09-18 Production of fiber reinforced silicon nitride-based ceramic

Publications (1)

Publication Number Publication Date
JPS6476970A true JPS6476970A (en) 1989-03-23

Family

ID=16962769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62233926A Pending JPS6476970A (en) 1987-09-18 1987-09-18 Production of fiber reinforced silicon nitride-based ceramic

Country Status (1)

Country Link
JP (1) JPS6476970A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020132470A (en) * 2019-02-19 2020-08-31 イビデン株式会社 Ceramic fiber-reinforced ceramic composite material and production method therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020132470A (en) * 2019-02-19 2020-08-31 イビデン株式会社 Ceramic fiber-reinforced ceramic composite material and production method therefor

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