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A platform for research: civil engineering, architecture and urbanism
SILICON NITRIDE-BASED SINTERED BODY, AND ABRASION-RESISTANT MEMBER INCLUDING THE SAME
PROBLEM TO BE SOLVED: To provide a silicon nitride-based sintered body having excellent sliding abrasion resistance, and further excellent in thermal shock resistance; and to provide an abrasion-resistant member including the same.SOLUTION: In a silicon nitride-based sintered body having silicon nitride as a main crystal, and containing melilite and silicon carbide in a grain boundary phase between main crystals, silicon carbide has at least 4H type and 6H type crystal polymorphism, and a volume percentage of 4H type silicon carbide in the total volume of the silicon carbide is 15-35%.SELECTED DRAWING: None
【課題】優れた耐滑り磨耗性を有しつつ、更に耐熱衝撃性に優れた窒化珪素質焼結体及びこれを備える耐磨耗性部材の提供。【解決手段】主結晶が窒化珪素であり、主結晶間である粒界相にメリライト及び炭化珪素を含み、炭化珪素は少なくとも４Ｈ型及び６Ｈ型の結晶多形を有しており、炭化珪素の合計体積における４Ｈ型の炭化珪素の体積百分率が15〜35％である窒化珪素質焼結体。【選択図】なし
SILICON NITRIDE-BASED SINTERED BODY, AND ABRASION-RESISTANT MEMBER INCLUDING THE SAME
PROBLEM TO BE SOLVED: To provide a silicon nitride-based sintered body having excellent sliding abrasion resistance, and further excellent in thermal shock resistance; and to provide an abrasion-resistant member including the same.SOLUTION: In a silicon nitride-based sintered body having silicon nitride as a main crystal, and containing melilite and silicon carbide in a grain boundary phase between main crystals, silicon carbide has at least 4H type and 6H type crystal polymorphism, and a volume percentage of 4H type silicon carbide in the total volume of the silicon carbide is 15-35%.SELECTED DRAWING: None
【課題】優れた耐滑り磨耗性を有しつつ、更に耐熱衝撃性に優れた窒化珪素質焼結体及びこれを備える耐磨耗性部材の提供。【解決手段】主結晶が窒化珪素であり、主結晶間である粒界相にメリライト及び炭化珪素を含み、炭化珪素は少なくとも４Ｈ型及び６Ｈ型の結晶多形を有しており、炭化珪素の合計体積における４Ｈ型の炭化珪素の体積百分率が15〜35％である窒化珪素質焼結体。【選択図】なし
SILICON NITRIDE-BASED SINTERED BODY, AND ABRASION-RESISTANT MEMBER INCLUDING THE SAME
窒化珪素質焼結体およびこれを備える耐磨耗性部材
TATEYAMA TAIJI (author) / HIRANO YOSHINORI (author) / ODA TAKEHIRO (author)
2016-04-11
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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