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A platform for research: civil engineering, architecture and urbanism
MANUFACTURING METHOD OF SINTERED BODY AND CUBIC BORON NITRIDE PARTICLE
To provide a sintered body capable of being used for cutting under more severe conditions.SOLUTION: A manufacturing method of sintered body composed of a first phase comprising a cubic boron nitride particle and a second phase comprising a first material includes a first step of obtaining a sintering precursor by coating the cubic boron nitride particle with the first material, and a second step of obtaining a sintered body by sintering the sintering precursor at a pressure of 0.01 GPa or more and 1 GPa or less. The sintered body exhibits a relative density of 85% or more, and the first material is partially stabilized ZrOin which AlOis dispersed in grain boundary and/or in a crystal grain.SELECTED DRAWING: None
【課題】より過酷な条件で切削を可能とする焼結体を製造する。【解決手段】立方晶窒化ホウ素粒子からなる第１相と、第１材料からなる第２相とを含む焼結体の製造方法であって、前記第１材料で前記立方晶窒化ホウ素粒子を被覆することにより焼結前駆体を得る第１工程と、前記焼結前駆体を０．０１ＧＰａ以上１ＧＰａ以下の圧力で焼結することにより焼結体を得る第２工程とを含み、前記焼結体は、８５％以上の緻密度を示し、前記第１材料は、Ａｌ2Ｏ3が結晶粒界および結晶粒内の両方またはいずれか一方に分散した部分安定化ＺｒＯ2である。【選択図】なし
MANUFACTURING METHOD OF SINTERED BODY AND CUBIC BORON NITRIDE PARTICLE
To provide a sintered body capable of being used for cutting under more severe conditions.SOLUTION: A manufacturing method of sintered body composed of a first phase comprising a cubic boron nitride particle and a second phase comprising a first material includes a first step of obtaining a sintering precursor by coating the cubic boron nitride particle with the first material, and a second step of obtaining a sintered body by sintering the sintering precursor at a pressure of 0.01 GPa or more and 1 GPa or less. The sintered body exhibits a relative density of 85% or more, and the first material is partially stabilized ZrOin which AlOis dispersed in grain boundary and/or in a crystal grain.SELECTED DRAWING: None
【課題】より過酷な条件で切削を可能とする焼結体を製造する。【解決手段】立方晶窒化ホウ素粒子からなる第１相と、第１材料からなる第２相とを含む焼結体の製造方法であって、前記第１材料で前記立方晶窒化ホウ素粒子を被覆することにより焼結前駆体を得る第１工程と、前記焼結前駆体を０．０１ＧＰａ以上１ＧＰａ以下の圧力で焼結することにより焼結体を得る第２工程とを含み、前記焼結体は、８５％以上の緻密度を示し、前記第１材料は、Ａｌ2Ｏ3が結晶粒界および結晶粒内の両方またはいずれか一方に分散した部分安定化ＺｒＯ2である。【選択図】なし
MANUFACTURING METHOD OF SINTERED BODY AND CUBIC BORON NITRIDE PARTICLE
焼結体の製造方法および立方晶窒化ホウ素粒子
ISHII AKITO (author) / OKAMURA KATSUMI (author) / HIROTA TAKESHI (author) / KATO MASAKI (author) / PHONG AN DAO (author)
2018-12-20
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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