Self-lubricating ceramic cutting tool material with the addition of nickel coated CaF2 solid lubricant powders. (April 2016)

• Record Type: Journal Article
• Authors: Wu, Guangyong; Xu, Chonghai; Xiao, Guangchun; Yi, Mingdong; Chen, Zhaoqiang; Xu, Longhua
• Is Part Of: International journal of refractory metals & hard materials. Volume 56(2016:May)
• Page Start: 51
• Page End: 58
• Publication Date: 2016-04
• Subjects: Self-lubricating composite -- Ceramic cutting tool -- Cutting performance -- Electroless plating -- Ni-coated CaF2; Heat resistant alloys -- Periodicals; Refractory materials -- Periodicals; Metallography -- Periodicals; Alliages réfractaires -- Périodiques; Matériaux réfractaires -- Périodiques; Métallographie -- Périodiques; Heat resistant alloys; Metallography; Refractory materials; Periodicals; Electronic journals; 669.73
• DOI: 10.1016/j.ijrmhm.2015.12.003
• Languages: English
• ISSNs: 0263-4368

Abstract

Abstract: A new type of self-lubricating ceramic cutting tool material with the addition of metal coated solid lubricant powders was developed. Nickel coated CaF2 composite powders with core–shell structure were produced by electroless plating technique. The growth process of nickel coating on the solid lubricant CaF2 powders was analyzed. The as-prepared self-lubricating ceramic cutting tool material made by adding nickel coated CaF2 powders exhibited notable improvements in microstructure and mechanical properties, in comparison with the corresponding cutting tool material made by directly adding uncoated CaF2 powders. Cutting tests show that the new type of self-lubricating ceramic cutting tool has better antifriction property and wear resistance than the corresponding cutting tool. Highlights: A cutting tool material with addition of metal coated solid lubricant was proposed. Al2 O3 /(W, Ti)C/CaF2 @Ni cutting tool material was prepared by hot pressing process. The as-prepared material has better mechanical properties and cutting performance.