A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CERAMIC COMPOSITE MATERIAL AND MANUFACTURING METHOD THEREFOR
PROBLEM TO BE SOLVED: To provide a ceramic composite material higher in hardness and toughness than conventional ones and high in credibility and a manufacturing method therefor.SOLUTION: There is provided a ceramic composite material consisting of a first phase containing at least one kind of carbide or boride having higher thermal expansion coefficient than SiC of 30 to 70 vol.% and SiC of 30 to 70 vol.% and a second phase containing at least one kind of carbide or boride having higher thermal expansion coefficient than SiC of 5 to 30 vol.% and SiC of 70 to 95 vol.%, inevitable impurities and a component added as a sinter assistant, where the second phase having maximum major axis of 20 to 200 μm is dispersed in the first phase.SELECTED DRAWING: None
【課題】従来よりも硬度および靭性が高く、信頼性の高いセラミックス複合材料およびその製造方法の提供。【解決手段】３０〜７０体積％のＳｉＣよりも熱膨張率の大きい炭化物もしくはホウ化物の少なくとも１種と、３０〜７０体積％のＳｉＣとを含む第１相と、５〜３０体積％のＳｉＣよりも熱膨張率の大きい炭化物もしくはホウ化物の少なくとも１種と、７０〜９５体積％のＳｉＣとを含む第２相、および不可避的不純物と焼結助剤として添加した成分の化合物からなり、最大長径が２０〜２００μｍである第２相が第１相中に分散していることを特徴とする、セラミックス複合材料。【選択図】なし
CERAMIC COMPOSITE MATERIAL AND MANUFACTURING METHOD THEREFOR
PROBLEM TO BE SOLVED: To provide a ceramic composite material higher in hardness and toughness than conventional ones and high in credibility and a manufacturing method therefor.SOLUTION: There is provided a ceramic composite material consisting of a first phase containing at least one kind of carbide or boride having higher thermal expansion coefficient than SiC of 30 to 70 vol.% and SiC of 30 to 70 vol.% and a second phase containing at least one kind of carbide or boride having higher thermal expansion coefficient than SiC of 5 to 30 vol.% and SiC of 70 to 95 vol.%, inevitable impurities and a component added as a sinter assistant, where the second phase having maximum major axis of 20 to 200 μm is dispersed in the first phase.SELECTED DRAWING: None
【課題】従来よりも硬度および靭性が高く、信頼性の高いセラミックス複合材料およびその製造方法の提供。【解決手段】３０〜７０体積％のＳｉＣよりも熱膨張率の大きい炭化物もしくはホウ化物の少なくとも１種と、３０〜７０体積％のＳｉＣとを含む第１相と、５〜３０体積％のＳｉＣよりも熱膨張率の大きい炭化物もしくはホウ化物の少なくとも１種と、７０〜９５体積％のＳｉＣとを含む第２相、および不可避的不純物と焼結助剤として添加した成分の化合物からなり、最大長径が２０〜２００μｍである第２相が第１相中に分散していることを特徴とする、セラミックス複合材料。【選択図】なし
CERAMIC COMPOSITE MATERIAL AND MANUFACTURING METHOD THEREFOR
セラミックス複合材料およびその製造方法
SATO YUTAKA (author) / MATSUBAYASHI SHIGEHARU (author) / KATSUKI FUTOSHI (author)
2016-07-25
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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