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美国通用电气公司特殊材料部最近研制成功一种金刚石聚晶体,是用小颗粒金刚石在高温高压条件下使金刚石晶体之间相互牢固地粘结在一起制成的.这种金刚石聚晶体称为GEOSET,可以烧结成各种形状.目前用于镶制取芯钻头的是一种2102型GEOSET金刚石聚晶体,其形状如图1所示,是等边三角形块,三角形每边长4毫米,厚2.6毫米.每颗重约0.3克拉.据初步试验证明,这种金刚石聚晶体具有如下一些优点: 1.热稳定性好,可承受1200℃的高温而不裂解.因此,可以采用现有的烧结方法来制做钻头,并可采用传统的方法进行回收.
General Electric Company of the United States Department of Special Materials recently successfully developed a diamond polycrystalline diamond is the use of small particles of diamond under high temperature and pressure conditions so that diamond crystals bonded together firmly with each other made of this diamond polycrystalline called GEOSET , Can be sintered into a variety of shapes currently used for insert core drill is a 2102 GEOSET diamond polycrystalline, the shape shown in Figure 1, is an equilateral triangular block, the length of each side of the triangle 4 mm, thickness 2.6 Mm. Each weighs about 0.3 karats. Preliminary experiments have shown that this diamond polycrystal has the following advantages: 1. Good thermal stability, can withstand high temperatures without cracking 1200 ° C. Therefore, you can use the existing sintering method To make the drill bit, and can be used the traditional method of recycling.