立方氮化硼表面镀Ti及其与金属粘结剂的作用

来源期刊：中国有色金属在线1997年第2期

论文作者：王明智 臧建兵 王艳辉

文章页码：104 - 106

关键词：cBN Ti镀层 界面 粘结剂

Key words：cBN Ti-coating interface bond

摘    要：通过磁控溅射及其后处理等方法在立方氮化硼(简写cBN)表面形成均匀的Ti 镀层。用DTA、XRD、SEM及EPMA等方法研究了镀层与cBN间的界面反应及产物、镀层 与Cu-Co基金属粘结剂之间的作用，并用经不同方法处理的cBN试样有不同的抗弯强度说明了这种作用。结果发现，cBN表面 Ti 镀层只有在与其形成Ti、B、N的化合物后，才能达到cBN与粘结剂的冶金结合，而溅射后真空热处理是实现这一作用的有效方法。

Abstract: Well-distributed Ti coatings were formed on the surface of cBN grits by means of magnetron sputtering method. DTA, XRD, SEM and EPMA techniques were used to investigate the reaction and compsition of interface between cBN and the coating. Bond strength between coating and bond in the compsite made of Ti-cladding cBN and Cu-Co alloy bond was studied by bend test. Experimental results show that only boride and nitride films are formed on the surfaces of cBN grits, which increases the bond strength between cBN grit and the bond . This effect can be achieved conveniently and economically by using vacuum heat treatment of coated cBN grits.