Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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Polycrystalline B4C-diamond double-layer composite material and preparation method thereof
The invention discloses a polycrystalline B4C-diamond double-layer composite material and a preparation method thereof, and belongs to the field of inorganic non-metallic materials. According to the method, B4C polycrystalline blocks or powder and diamond powder are used as raw materials, and the polycrystalline B4C-diamond double-layer composite material is prepared by purifying the raw materials, pre-pressing and forming the raw materials, wrapping the pre-pressed and formed raw materials with a metal wrapping body, assembling a high-pressure assembly unit, placing the high-pressure assemblyunit in high-pressure equipment and sintering under high-temperature and high-pressure conditions. The polycrystalline B4C-diamond double-layer composite material has a polycrystalline diamond and polycrystalline B4C double-layer structure, the diamond layer and the B4C layer are compounded together through high-temperature and high-pressure sintering, the two layers of polycrystalline materialsare tightly combined, the grain size distribution is uniform, the density is high, the characteristics of high hardness and high fracture toughness of diamond are achieved, and the advantages that B4Cis easy to sinter and small in density are combined.
本发明公开了一种多晶BC—金刚石双层复合材料及其制备方法，属于无机非金属材料领域，该方法以BC多晶块体或粉末、金刚石粉末为原料，通过对原料进行净化处理，预压成型，预压成型的原料用金属包裹体包裹，装配高压组装单元，放置于高压设备中，在高温高压条件下烧结，制备得到多晶BC—金刚石双层复合材料；所述多晶BC—金刚石双层复合材料具有多晶金刚石与多晶BC双层结构，金刚石层与BC层经高温高压烧结复合在一起，两层多晶材料结合紧密，晶粒大小分布均匀，致密度高，既具备金刚石高硬度高断裂韧性的特点，又结合了BC易烧结、密度小的优点。
Polycrystalline B4C-diamond double-layer composite material and preparation method thereof
The invention discloses a polycrystalline B4C-diamond double-layer composite material and a preparation method thereof, and belongs to the field of inorganic non-metallic materials. According to the method, B4C polycrystalline blocks or powder and diamond powder are used as raw materials, and the polycrystalline B4C-diamond double-layer composite material is prepared by purifying the raw materials, pre-pressing and forming the raw materials, wrapping the pre-pressed and formed raw materials with a metal wrapping body, assembling a high-pressure assembly unit, placing the high-pressure assemblyunit in high-pressure equipment and sintering under high-temperature and high-pressure conditions. The polycrystalline B4C-diamond double-layer composite material has a polycrystalline diamond and polycrystalline B4C double-layer structure, the diamond layer and the B4C layer are compounded together through high-temperature and high-pressure sintering, the two layers of polycrystalline materialsare tightly combined, the grain size distribution is uniform, the density is high, the characteristics of high hardness and high fracture toughness of diamond are achieved, and the advantages that B4Cis easy to sinter and small in density are combined.
本发明公开了一种多晶BC—金刚石双层复合材料及其制备方法，属于无机非金属材料领域，该方法以BC多晶块体或粉末、金刚石粉末为原料，通过对原料进行净化处理，预压成型，预压成型的原料用金属包裹体包裹，装配高压组装单元，放置于高压设备中，在高温高压条件下烧结，制备得到多晶BC—金刚石双层复合材料；所述多晶BC—金刚石双层复合材料具有多晶金刚石与多晶BC双层结构，金刚石层与BC层经高温高压烧结复合在一起，两层多晶材料结合紧密，晶粒大小分布均匀，致密度高，既具备金刚石高硬度高断裂韧性的特点，又结合了BC易烧结、密度小的优点。
Polycrystalline B4C-diamond double-layer composite material and preparation method thereof
一种多晶BC—金刚石双层复合材料及其制备方法
OUYANG XIAOPING (Autor:in) / WANG HAIKUO (Autor:in) / OUYANG XIAO (Autor:in) / TAN ZHONGJUN (Autor:in)
28.08.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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