Raw graphite powder made from graphite ores and treated by various methods was sintered at high temperature to obtain higher pure graphite powder for synthesizing diamond.

对石墨矿石采用不同的处理方法得到了原料石墨粉，再经高温烧结获得了高纯度合成金刚石所需的石墨粉。

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The magnetism of the synthetic polycrystalline diamond and its raw materials including diamond powder, silicon powder, titanium powder, graphite and resultant carborundum was measured by WCF-2.

采用WCF - 2多用磁性分析仪对高温高压烧结的人造金刚石聚晶及其合成原料(金刚石粉、硅粉、钛粉、石墨)和烧结过程中生成的碳化硅等进行了磁性测量。

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In the synthesis of artificial diamond, carbon is used as raw material and alloy as catalyst.

人造金钢石的合成，以碳素为原料，合金为触媒。

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In his sights is a status unrivaled in the raw materials sector since Cecil Rhodes held sway over much of southern Africa in the 19th century through the diamond trading company he founded, De Beers.

FORBES: BY TIM TREADGOLD