EP0075857A2
Expired / Lapsed
EP
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Sintered bodies of aluminum nitride
Assignee: Toshiba Corp
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Filing: 1982-09-22
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Granted: —
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Expires: 2002-09-22
Abstract
Abstract There is disclosed a sintered body of aluminum nitride comprising a sintered body of powder mixture containing (a) AeN powder : 100 parts by weight, (b) at least one compound selected from CaO, BaO, SrO and a compound capable of being converted into one of these oxides by sintering : 0.05 to 6 parts by weight, and (c) carbon powder or powder of a compound capable of being converted into carbon by sintering : more than 0 to not more than 7 parts by weight. The sintered bodies of aluminum nitride according to this invention have high density and excellent properties such as high thermal conductivity.
Inventors
- 👤 Katsutoshi Komeya
- 👤 Akihiko Tsuge
- 👤 Hiroshi Inoue
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 05:42
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/58; C04B35/581
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
106 words
A sintered body of aluminum nitride which comprises a sintered body of powder mixture containing (a) 100 parts by weight of aluminum nitride powder, (b) 0.05 to 6 parts by weight (calculated in terms of calcium oxide, barium oxide, strontium oxide or mixture thereof) of powder at least one compound selected from calcium oxide, barium oxide, strontium oxide and a compound capable of being converted into one of these oxides by sintering, and (c) more than 0 to not more than 7 parts by weight (calculated in terms of carbon) of carbon powder or powder of a compound capable of being converted into carbon by sintering.
Claim 2
Dependent Claim
106 words
A sintered body of aluminum nitride which comprises a sintered body of powder mixture containing (a) 100 parts by weight of aluminum nitride powder, (b) 0.05 to 6 parts by weight (calculated in terms of calcium oxide, barium oxide, strontium oxide or mixture thereof) of powder at least one compound selected from calcium oxide, barium oxide, strontium oxide and a compound capable of being converted into one of these oxides by sintering, and (c) more than 0 to not more than 7 parts by weight (calculated in terms of carbon) of carbon powder or powder of a compound capable of being converted into carbon by sintering.
Claim 3
Dependent Claim
29 words
A sintered body of aluminum nitride according to Claim 1, wherein the compounding amount of the ingredient (b) is in the range between 0.05 and 4 parts by weight.
Claim 4
Dependent Claim
31 words
A sintered body of aluminum nitride according to Claim 1 or 2, wherein the compounding amount of the ingredient (c) is in the range between 0.1 and 5 parts by weight.
References Cited (Backward Citations)
No citation records indexed.
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