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Preparation method of aluminum nitride/diamond polycrystalline material
The invention belongs to the technical field of preparation and processing of diamond composite materials, and relates to a preparation method of a novel aluminum nitride/diamond polycrystalline material. The preparation method comprises the following steps: fully mixing aluminum nitride powder, a sintering aid and conductive metal powder, respectively carrying out cold press molding on the mixture and a diamond/cobalt composite layer, and preparing the novel aluminum nitride/diamond polycrystalline material by adopting a high-temperature and high-pressure sintering method. The prepared aluminum nitride/diamond polycrystalline material is firm in combination, controllable in thickness, high in grinding efficiency and good in heat resistance, the heat conduction performance of an aluminum nitride matrix is far higher than that of a hard alloy matrix used by a traditional diamond polycrystalline composite sheet, the aluminum nitride/diamond polycrystalline material can be widely appliedto the fields of automobiles, aerospace, energy and the like, and the high-speed precision machining requirement of the material is met.
本发明属于金刚石复合材料制备加工技术领域，涉及了一种新型氮化铝/金刚石聚晶材料的制备方法。制备方法为将氮化铝粉末、烧结助剂和导电金属粉充分混合，与金刚石/钴复合层分别进行冷压成形，再采用高温高压烧结法制备新型氮化铝/金刚石聚晶材料。制备出的氮化铝/金刚石聚晶材料结合牢固，厚度可控，磨削效率高，耐热性能好，氮化铝基体导热性能远高于传统金刚石聚晶复合片所使用的硬质合金基体，可广泛应用在汽车、航空航天、能源等领域，解决材料的高速精密加工需求。
Preparation method of aluminum nitride/diamond polycrystalline material
The invention belongs to the technical field of preparation and processing of diamond composite materials, and relates to a preparation method of a novel aluminum nitride/diamond polycrystalline material. The preparation method comprises the following steps: fully mixing aluminum nitride powder, a sintering aid and conductive metal powder, respectively carrying out cold press molding on the mixture and a diamond/cobalt composite layer, and preparing the novel aluminum nitride/diamond polycrystalline material by adopting a high-temperature and high-pressure sintering method. The prepared aluminum nitride/diamond polycrystalline material is firm in combination, controllable in thickness, high in grinding efficiency and good in heat resistance, the heat conduction performance of an aluminum nitride matrix is far higher than that of a hard alloy matrix used by a traditional diamond polycrystalline composite sheet, the aluminum nitride/diamond polycrystalline material can be widely appliedto the fields of automobiles, aerospace, energy and the like, and the high-speed precision machining requirement of the material is met.
本发明属于金刚石复合材料制备加工技术领域，涉及了一种新型氮化铝/金刚石聚晶材料的制备方法。制备方法为将氮化铝粉末、烧结助剂和导电金属粉充分混合，与金刚石/钴复合层分别进行冷压成形，再采用高温高压烧结法制备新型氮化铝/金刚石聚晶材料。制备出的氮化铝/金刚石聚晶材料结合牢固，厚度可控，磨削效率高，耐热性能好，氮化铝基体导热性能远高于传统金刚石聚晶复合片所使用的硬质合金基体，可广泛应用在汽车、航空航天、能源等领域，解决材料的高速精密加工需求。
Preparation method of aluminum nitride/diamond polycrystalline material
一种氮化铝/金刚石聚晶材料的制备方法
JIA BAORUI (author) / ZHAO YONGZHI (author) / QIN MINGLI (author) / JIANG XUE (author) / LIU LUAN (author) / WANG YONG (author) / WU TONG (author) / QIN WANJUN (author) / ZHANG DEYIN (author) / WU HAOYANG (author)
2020-12-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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