JPS643074A - Production of high-density sintered boron nitride - Google Patents

Production of high-density sintered boron nitride

Info

Publication number
JPS643074A
JPS643074A JP62156563A JP15656387A JPS643074A JP S643074 A JPS643074 A JP S643074A JP 62156563 A JP62156563 A JP 62156563A JP 15656387 A JP15656387 A JP 15656387A JP S643074 A JPS643074 A JP S643074A
Authority
JP
Japan
Prior art keywords
boron nitride
nitrogen
hexagonal system
boron
density 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
JP62156563A
Other languages
Japanese (ja)
Other versions
JPH013074A (en
JPH0742169B2 (en
Inventor
Kagetaka Ichikawa
Takao Noda
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.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
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 Showa Denko KK filed Critical Showa Denko KK
Priority to JP62156563A priority Critical patent/JPH0742169B2/en
Publication of JPH013074A publication Critical patent/JPH013074A/en
Publication of JPS643074A publication Critical patent/JPS643074A/en
Publication of JPH0742169B2 publication Critical patent/JPH0742169B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Ceramic Products (AREA)

Abstract

PURPOSE: To produce a high-density sintered boron nitride at low cost, by blending boron nitride powder of hexagonal system with specific amounts of an alkaline earth metallic compound and boron carbide, molding and burning in a nitrogen atmosphere.
CONSTITUTION: Boron nitride powder of hexagonal system ground pulverized into ≥about 5m2/g BET specific surface area is blended with 0.1W20wt.% alkaline earth metallic compound (calcium carbonate) and 0.1W20wt.% boron carbide (≤50μ particle size) and granulated. Then the granules are molded into a given shape, heated in nitrogen or in a nonoxidizing atmosphere containing nitrogen at a rate of heating of about 20W100°C/min to about 1,600W1,800°C, burnt for about 2W10hr and boron carbide is reacted with nitrogen to give boron nitride. Consequently, high-quality sintered boron nitride of hexagonal system is obtained.
COPYRIGHT: (C)1989,JPO&Japio
JP62156563A 1987-06-25 1987-06-25 Method for producing high-density boron nitride sintered body Expired - Lifetime JPH0742169B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62156563A JPH0742169B2 (en) 1987-06-25 1987-06-25 Method for producing high-density boron nitride sintered body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62156563A JPH0742169B2 (en) 1987-06-25 1987-06-25 Method for producing high-density boron nitride sintered body

Publications (3)

Publication Number Publication Date
JPH013074A JPH013074A (en) 1989-01-06
JPS643074A true JPS643074A (en) 1989-01-06
JPH0742169B2 JPH0742169B2 (en) 1995-05-10

Family

ID=15630521

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62156563A Expired - Lifetime JPH0742169B2 (en) 1987-06-25 1987-06-25 Method for producing high-density boron nitride sintered body

Country Status (1)

Country Link
JP (1) JPH0742169B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112334408A (en) * 2018-06-29 2021-02-05 电化株式会社 Bulk boron nitride particles, boron nitride powder, method for producing boron nitride powder, resin composition, and heat-dissipating member

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3279173B1 (en) * 2016-08-05 2021-05-26 3M Innovative Properties Company Formed hexagonal boron nitride body, heat-treated hexagonal boron nitride body and processes for producing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112334408A (en) * 2018-06-29 2021-02-05 电化株式会社 Bulk boron nitride particles, boron nitride powder, method for producing boron nitride powder, resin composition, and heat-dissipating member

Also Published As

Publication number Publication date
JPH0742169B2 (en) 1995-05-10

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