Tokyo Shibaura Denki Kabushiki Kaisha (Kawasaki JPX 03)
인용정보
피인용 횟수 :
21인용 특허 :
7
초록▼
Disclosed is a method of producing a sintered body of ceramics, wherein a powder mixture consisting, essentially of at most 10%, exclusive of 0%, by weight of yttrium oxide, at most 10%, exclusive of 0%, by weight of aluminum oxide, at most 10%, exclusive of 0%, by weight of aluminum nitride, at mos
Disclosed is a method of producing a sintered body of ceramics, wherein a powder mixture consisting, essentially of at most 10%, exclusive of 0%, by weight of yttrium oxide, at most 10%, exclusive of 0%, by weight of aluminum oxide, at most 10%, exclusive of 0%, by weight of aluminum nitride, at most 5%, exclusive of 0%, by weight of at least one material selected from the group consisting of titanium oxide, magnesium oxide and zirconium oxide, and the balance essentially of silicon nitride is sintered under a non-oxidizing atmosphere.
대표청구항▼
A sintered ceramic body having a relative density of at least 95%, a flexural strength of at least 70 Kg/mm2 at room temperature and at least 60 Kg/mm2 at 1200°C., and a critical thermal shock temperature of at least 400°C., produced by the process of: admixing yttrium oxide, aluminum oxide, aluminu
A sintered ceramic body having a relative density of at least 95%, a flexural strength of at least 70 Kg/mm2 at room temperature and at least 60 Kg/mm2 at 1200°C., and a critical thermal shock temperature of at least 400°C., produced by the process of: admixing yttrium oxide, aluminum oxide, aluminum nitride, at least one material selected from the group consisting of titanium oxide, magnesium oxide and zirconium oxide, and silicon nitride to form a powder mixture consisting essentially of at most 10%, exclusive of 0%, by weight of yttrium oxide, at most 10%, exclusive of 0%, by weight of aluminum oxide, at most 10%, exclusive of 0%, by weight of aluminum nitride, at most 5%, exclusive of 0%, by weight of at least one material selected from the group consisting of titanium oxide, magnesium oxide and zirconium oxide, and the balance essentially of silicon nitride; shaping said powder mixture into a desired form; and sintering under a non-oxidizing atmosphere at 1500°to 1900°C.
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