摘要
结合剂中的理想气孔不但可以最大效率地容屑、断屑、贮存冷却液、润滑剂,而且对结合剂强度的影响最小。本文介绍了自主研制的具有可控气孔的低熔高强纳米陶瓷结合剂的烧结工艺和气孔结构特性。通过改变造孔剂的粒度和掺入量,可以获得近于无气孔的致密型和具有均匀分布的圆形理想气孔的结合剂,气孔孔径和数量可控,并且气孔率可以在大范围内调整。该适合制备较大磨削接触面积的工具如抛磨工具等。
The pores with ideal features in the bond of grinding wheels not only could provide channels for lubrication and clearance for chips to escape during grinding,but have least negative effect on the strength of the bond. This paper introduced a low melting point high strength nano vitrified bond with controllable pores developed by the authors,in respects of the sintering process and its pore structures.By varying the size and the content of the pore inducer,the size and amount of the pores in the samples could be controlled in a large range. This vitrified bond with controllable pores is suitable for making grinding tools with a large contact area,such as polishing tools.
出处
《金刚石与磨料磨具工程》
CAS
北大核心
2010年第4期17-20,共4页
Diamond & Abrasives Engineering
基金
国家自然科学基金(No.50972125)
国家自然科学基金(No.50872119)
河北省自然科学基金资助(E2010001187)
关键词
纳米陶瓷结合剂
气孔可控
低熔高强
超硬磨具
nano vitrified bond
controllable pores
low melting point and high strength
superabrasive tools
作者简介
张向红，女，1978年生，博士，讲师，主要从事陶瓷结合剂金刚石和立方氮化硼超硬工具研究。
通讯作者：王艳辉，男，1963年生，教授，博士生导师，研究方向：金刚石及相关材料。E—mail：diamondzjb@163．com
