高压物理学报2013，Vol.27Issue(1)：34-39,6.
φ42mm腔体高岭石-白云石质传压密封介质金刚石合成扩大试验
Enlarged Scale Tests on Diamond Synthesis by Pressure Transmitting and Sealing Medium with Inside Diameter of 42 mm and Composed of Kaolinite and Dolomite
摘要
Abstract
Kaolinite can take the place of pyrophyllite in the use of pressure transmitting and sealing medium due to its good sealing performance,pressure transmitting property and machining capability. The selected kaolinite sample in this paper is not pure mineral,but it is more suitable for the pressure transmitting and sealing. A new pressure transmitting and sealing medium composed of kaolinite and dolomite is obtained through batching, mixing, shaping, and roasting. With this pressure transmitting and sealing medium,a large number of diamond synthesis tests are conducted. The test results show that the per unit yield of diamond is 19 g,the proportions of crystals whose compression strength and grain size are more than 160 N and 0. 30 mm are 32% and 82% , respectively, and the cemented carbide anvil consumption is less than 0. 5 g per 1 g of the produced diamond. In addition,the synthesis process observed is stable. Compared with pyrophyllite,the selected kaolinite-dolomite can also achieve considerable effect.关键词
高岭石/白云石/传压介质/密封介质/金刚石合成Key words
kaolinite/dolomite/pressure transmitting medium/sealing medium/diamond synthesis分类
数理科学引用本文复制引用
杨炳飞,刘杰..φ42mm腔体高岭石-白云石质传压密封介质金刚石合成扩大试验[J].高压物理学报,2013,27(1):34-39,6.基金项目
河北省科技支撑计划项目(12273604) （12273604）
