Evaluation of Sulfides as Solid Lubricant: Lubricity of Compounded Sulfides

• Published in: Engineering Tribology and Biomedical Materials Vol. 901; p. 1
• Main Authors: Sato, Tomohiro, Saitoh, Kenichi, Takahashi, Yoshimasa, Takuma, Masanori, Ishikawa, Shuhei
• Format: Book Chapter Journal Article
• Language: English
• Published: Zurich Trans Tech Publications 08.10.2021; Trans Tech Publications Ltd
• Subjects: Bornite; Friction & Wear; General Engineering & Project Administration; Lubricity; Materials; Mechanics & Mechanical Engineering; Oil additives; Powder metallurgy; Sintering (powder metallurgy); Solid lubricants; Sulfides; Tribology; Sulfide; Tribofilm; Synthesis; Sintering
• ISBN: 3035715289; 9783035715286
• ISSN: 1013-9826; 1662-9795; 1662-9795
• DOI: 10.4028/www.scientific.net/kem.901.164

Sulfide was used as solid lubricant, and MoS2 was popular. It was used industry as powder shape. Sulfur as oil additive; ZDDP, MoTDC were also well known. These composites make tribofilm which prevent seizure, scoring and some tribological troubles. In this paper, sulfides were synthesized by powder metallurgy technics. In addition, these sulfides were mixed with bronze powders and sintered as cylindrical specimen. As a result of the friction test in the lubricated condition, tribofilm were covered with specimen surface. By XPS observation, sulfides and oxides were detected on the specimen surface. In the test, additive was not contained in the lubricant because PAO as base oil was adapted. However, sulfide in the specimen affect the making the tribofilm, especially when bornite (Cu5FeS4) was used.