JPS6451378A - Production of silicon nitride sintered body for cutting tool - Google Patents

Production of silicon nitride sintered body for cutting tool

Info

Publication number
JPS6451378A
JPS6451378A JP62206397A JP20639787A JPS6451378A JP S6451378 A JPS6451378 A JP S6451378A JP 62206397 A JP62206397 A JP 62206397A JP 20639787 A JP20639787 A JP 20639787A JP S6451378 A JPS6451378 A JP S6451378A
Authority
JP
Japan
Prior art keywords
powder
sintered body
silicon nitride
cutting tool
nitride sintered
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.)
Granted
Application number
JP62206397A
Other languages
Japanese (ja)
Other versions
JPH0460077B2 (en
Inventor
Takao Nishioka
Masaya Miyake
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP62206397A priority Critical patent/JPS6451378A/en
Publication of JPS6451378A publication Critical patent/JPS6451378A/en
Publication of JPH0460077B2 publication Critical patent/JPH0460077B2/ja
Granted legal-status Critical Current

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  • Ceramic Products (AREA)

Abstract

PURPOSE:To obtain a silicon nitride sintered body for a cutting tool having superior strength and toughness by sintering and heat treating a mixture of prescribed percentages of Si3N4 powder, nonstabilized ZrO2 powder, Al2O3 powder and Y2O3 powder under prescribed conditions. CONSTITUTION:A powdery mixture consisting of, by weight, 1-10% nonstabilized ZrO2 powder, 1-5% Al2O3 powder, 1-10% Y2O3 powder and the balance Si3N4 powder, is sintered at 1,600-1,900 deg.C in an inert gaseous atmosphere and this sintered body is heat treated at 1,200-1,600 deg.C in a nonoxidizing atmosphere.
JP62206397A 1987-08-21 1987-08-21 Production of silicon nitride sintered body for cutting tool Granted JPS6451378A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62206397A JPS6451378A (en) 1987-08-21 1987-08-21 Production of silicon nitride sintered body for cutting tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62206397A JPS6451378A (en) 1987-08-21 1987-08-21 Production of silicon nitride sintered body for cutting tool

Publications (2)

Publication Number Publication Date
JPS6451378A true JPS6451378A (en) 1989-02-27
JPH0460077B2 JPH0460077B2 (en) 1992-09-25

Family

ID=16522677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62206397A Granted JPS6451378A (en) 1987-08-21 1987-08-21 Production of silicon nitride sintered body for cutting tool

Country Status (1)

Country Link
JP (1) JPS6451378A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04197856A (en) * 1990-11-29 1992-07-17 East Japan Railway Co Washing device for stream line vehicle bonnet
JPH04218452A (en) * 1990-04-09 1992-08-10 East Japan Railway Co Streamline shape vehicle bonnet washing device
JPH0549534U (en) * 1991-10-17 1993-06-29 株式会社整電社 Vehicle shoulder cleaning device
JPH05221293A (en) * 1992-02-14 1993-08-31 East Japan Railway Co Method and device for washing skirt part of vehicle side surface
US5266404A (en) * 1990-07-19 1993-11-30 Tioxide Group Services Limited Non-oxide ceramic particles coated with zirconium oxide or hydrous oxide
JPH0640314A (en) * 1992-07-17 1994-02-15 Nippon Sharyo Senjiyouki Kk Rail vehicle cleaning device
JPH06107132A (en) * 1992-09-28 1994-04-19 West Japan Railway Co Washing device for rail road rolling stock
JPH072064A (en) * 1992-07-01 1995-01-06 East Japan Railway Co Cleaning for whole surface of rolling stock

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5547276A (en) * 1978-05-31 1980-04-03 Ford Motor Co Si3n4 compounded material for cutting tool and its manufacture
JPS61178472A (en) * 1985-01-31 1986-08-11 アイシン精機株式会社 Heat treatment of silicon nitride sintered body
JPS62171977A (en) * 1986-01-27 1987-07-28 日本碍子株式会社 Method of strengthening silicon nitride ceramic body

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5547276A (en) * 1978-05-31 1980-04-03 Ford Motor Co Si3n4 compounded material for cutting tool and its manufacture
JPS61178472A (en) * 1985-01-31 1986-08-11 アイシン精機株式会社 Heat treatment of silicon nitride sintered body
JPS62171977A (en) * 1986-01-27 1987-07-28 日本碍子株式会社 Method of strengthening silicon nitride ceramic body

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04218452A (en) * 1990-04-09 1992-08-10 East Japan Railway Co Streamline shape vehicle bonnet washing device
US5266404A (en) * 1990-07-19 1993-11-30 Tioxide Group Services Limited Non-oxide ceramic particles coated with zirconium oxide or hydrous oxide
JPH04197856A (en) * 1990-11-29 1992-07-17 East Japan Railway Co Washing device for stream line vehicle bonnet
JPH0549534U (en) * 1991-10-17 1993-06-29 株式会社整電社 Vehicle shoulder cleaning device
JPH05221293A (en) * 1992-02-14 1993-08-31 East Japan Railway Co Method and device for washing skirt part of vehicle side surface
JPH072064A (en) * 1992-07-01 1995-01-06 East Japan Railway Co Cleaning for whole surface of rolling stock
JPH0640314A (en) * 1992-07-17 1994-02-15 Nippon Sharyo Senjiyouki Kk Rail vehicle cleaning device
JPH06107132A (en) * 1992-09-28 1994-04-19 West Japan Railway Co Washing device for rail road rolling stock

Also Published As

Publication number Publication date
JPH0460077B2 (en) 1992-09-25

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Legal Events

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LAPS Cancellation because of no payment of annual fees