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Die for synthesis of superhard materials
The invention discloses a die for the synthesis of superhard materials, and particularly relates to a die used for taking a carbide chip or ceramic tip as a base material and sintering a base body and superhard materials through a sintering technology. The die aims to solve the technical problem that the currently common method for synthesizing superhard materials particularly diamond compact and cubic boron nitride compact has very high possibility of causing unstable synthesis during synthesis. The die is prepared through the following raw materials: low melting point materials with the melting point range being 800 to 1000 DEG C, high melting point materials with the melting point range being 1000 to 1800 DEG C, and materials having special phase change when the temperature is below 1300 to 1500 DEG C. The die can ensure that the pressure field in a synthesis cavity is more uniform, greatly improves the synthesis stability, ensures that the size can be increased at high temperature, compensates the pressure drop caused by volume shrinkage after material sintering, and provides more stable and uniform pressure filed of material synthesis.
Die for synthesis of superhard materials
The invention discloses a die for the synthesis of superhard materials, and particularly relates to a die used for taking a carbide chip or ceramic tip as a base material and sintering a base body and superhard materials through a sintering technology. The die aims to solve the technical problem that the currently common method for synthesizing superhard materials particularly diamond compact and cubic boron nitride compact has very high possibility of causing unstable synthesis during synthesis. The die is prepared through the following raw materials: low melting point materials with the melting point range being 800 to 1000 DEG C, high melting point materials with the melting point range being 1000 to 1800 DEG C, and materials having special phase change when the temperature is below 1300 to 1500 DEG C. The die can ensure that the pressure field in a synthesis cavity is more uniform, greatly improves the synthesis stability, ensures that the size can be increased at high temperature, compensates the pressure drop caused by volume shrinkage after material sintering, and provides more stable and uniform pressure filed of material synthesis.
Die for synthesis of superhard materials
LIU SHUFENG (author) / CUI WEIMIN (author)
2015-04-29
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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