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硬度介于碳化钨和金刚石之间的超硬材料,正被评定用作钻头上的切削元件和扶正器上的耐磨面。本文讨论此种材料的物理性质、实验室试验和样品钻头。
Superhard materials with a hardness between tungsten carbide and diamond are being evaluated for use as cutting elements on drill bits and wear resistant surfaces on centralizers. This article discusses the physical properties of such materials, laboratory tests and sample drills.