金刚石与磨料磨具工程2012，Vol.32Issue(1)：1-3,7,4.
A1添加量对PcBN复合片显微结构和性能的影响
Effect of Al content on the microstructure and properties of PcBN compact
摘要
Abstract
Polycrystalline cubic boron nitride (PcBN) compacts were obtained by sintering cubic boron nitride ( cBN) powder and Al powder under 5.0 Gpa,l 300 ~ 1 400 ℃ , with Al content (volume fraction) being 5% , 10% , 15% , 20% , respectively. X-ray diffraction and scanning electron microscopy were carried out to investigate the phase composition and microstructure of the PcBN compacts. The abrasion ratio and the impact resistance of the compacts are investigated also. It is revealed that the main phases of PcBN compacts are cBN and A1N. With the increase of the Al content in the starting materials, the A1N content increases correspondingly and the performances of the PcBN compacts change also. When 10% Al (volume fraction) is added, the obtained PcBN compact achieves the optimum properties, with the abrasion ratio being 21 842 and the impact resistance over 100 counts.关键词
PcBN/Al粉/磨耗比/抗冲击性能Key words
polycrystalline cubic boron nitride/aluminium powder/abrasion ratio/impact resistance分类
化学化工引用本文复制引用
许红亮,王裕昌,万欣娣,孟伟民,关绍康..A1添加量对PcBN复合片显微结构和性能的影响[J].金刚石与磨料磨具工程,2012,32(1):1-3,7,4.基金项目
中国博士后科学基金资助项目(批准号:20070420810) （批准号:20070420810）
