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POLYCRYSTALLINE DIAMOND BODY, CUTTING TOOL, WEAR-RESISTANT TOOL, GRINDING TOOL, AND METHOD FOR PRODUCING POLYCRYSTALLINE DIAMOND BODY
POLYCRYSTALLINE DIAMOND BODY, CUTTING TOOL, WEAR-RESISTANT TOOL, GRINDING TOOL, AND METHOD FOR PRODUCING POLYCRYSTALLINE DIAMOND BODY
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机译:多晶金刚石体,切削工具,抗磨工具,磨削工具以及生产多晶金刚石体的方法
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摘要
A polycrystalline diamond body contains diamond particles, the diamond particles have a mean particle size of 50 nm or less, and a crack initiation load is 10 N or more as measured in a fracture strength test by pressing a diamond indenter D with a tip radius Dr of 50 μm against a surface of the polycrystalline diamond body at a load rate F of 100 N/min. Accordingly, a polycrystalline diamond body that is tough and has a small diamond particle size, a cutting tool, a wear-resistant tool, a grinding tool, and a method for producing the polycrystalline diamond body are provided.
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机译:多晶金刚石体包含金刚石颗粒,该金刚石颗粒的平均粒径为50nm或更小,并且通过在尖端强度Dr处压制金刚石压头D的断裂强度测试中测得的裂纹萌生载荷为10N以上。在100 N / min的负载率F下,相对于多晶金刚石体的表面50μm的应力。因此,提供了坚硬且具有小的金刚石粒径的多晶金刚石体,切削工具,耐磨工具,磨削工具以及用于生产该多晶金刚石体的方法。
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