发明名称 |
METHOD OF PREPARING A MULTIMODAL CUBIC BORON NITRIDE POWDER |
摘要 |
Multi-step milling processes to prepare cBN composite powder forms a first powder mixture by adding a binder and a first cBN component, mills the first powder mixture for a first time period, combines a second cBN component with the milled first powder mixture to form a second powder mixture, and mills the second powder mixture for a second time period (less than the first time period) to form the cBN composite powder. A ratio of the D50 value of the second cBN component to the D50 value of the first cBN component is at least 3.0. Two-step milling with different milling times for the two cBN component fractions controls the amount of mill debris in the cBN composite powder mixture. Further processing of the cBN composite powder under HPHT conditions forms a cBN-based ceramic with an average value of a cBN particle free diameter of less than 2.0 microns. |
申请公布号 |
WO2016081571(A1) |
申请公布日期 |
2016.05.26 |
申请号 |
WO2015US61292 |
申请日期 |
2015.11.18 |
申请人 |
DIAMOND INNOVATIONS, INC. |
发明人 |
PALMER, JACOB;DUES, LAWRENCE;SHAO, RUI;WIENL, GEROLD |
分类号 |
C04B35/5831;C04B35/626 |
主分类号 |
C04B35/5831 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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