摘要
在高温高压(5.0GPa、1500℃)的条件下,以Ni70Mn25Co5合金为烧结助剂,采用粉末混合法制备了金刚石复合片(PDC),并采用SEM及Micro-Raman spectroscopy对金刚石烧结体进行了形貌及物相测试。结果表明,由于烧结腔体存在压力、温度梯度,金刚石在经历高温高压烧结后,具有多种烧结形态及物相结构,表现为晶形完整的金刚石微晶、纳米石墨相和无定形碳。
Under the high temperature and high pressure （5.0 GPa, 1500 ~C） conditions, PDC was prepared by mix-powder method using Ni70 Mn25 Co5 alloy as sintering aids. SEM and Micro-Raman spectroscopy were used to investigate the morphology and structure of diamonds sintered body, and the results show that the diamonds, after sintering at high pressure and high temperature, have a variety of carbon phase structure because of the existence of sintering pressure and temperature gradient, performing for the perfect micro-crystal of diamonds, nano-graphite and amorDhous carbon.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2013年第24期9-11,17,共4页
Materials Reports
基金
国家自然科学基金(50731006)
吉林大学开放课题(201201)
牡丹江师范学院开放课题(201301)
