...Basma Ben Difallah; Pierre-Henri Cornuault; Mohamed Kharrat; Maher Dammak; Guy Monteil To achieve thermoplastics-based composites with high tribological performances, molybdenum disulfide (MoS 2 ) and graphite (Gr) were incorporated separately to a polyamide 66 (PA66) matrix. Two different...

.... 29 12 2011 27 09 2013 The tribological properties of polytetrafluoroethylene (PTFE)/expanded graphite (EG) nanocomposites were evaluated on a pin-on-disk wear tester under dry conditions for the first time. Scanning electron microscopy (SEM) was used to examine worn surfaces and debris...

... a surface-restricted layer are investigated numerically and experimentally. The effects of permeability in bulk porous materials and of a surface-restricted layer on the bearing characteristics are discussed using two kinds of porous material: graphite and metal. It was confirmed that aerostatic porous...

... stuffing box packing test bench. The tests results of the experiments are coupled to the ones obtained by a finite element simulation of the test rig to determine the packing seal mechanical characteristics. Two packing types are used: one based on Teflon and the other one based on flexible graphite...

...Yu-lin Yang; Zhi-ning Jia; Jin-jiang Chen; Bing-li Fan This paper provides a polytetrafluoroethylene (PTFE)/nano-EG solid self-lubricating composite that exhibits very low friction coefficient and wear rate. In present study, the influences of the content of expanded graphite with nanoscale...

... % graphite and 1 wt % antimony trisulphide ( Sb 2 S 3 ) were investigated. A group of four new chemical formulations, three binary composites of Al / SiC p (Al01N, Al02N, and Al03N), and a hybrid composite of Al / SiC p / solid lubricants (Al04N) were fabricated by newly a developed “cold-hot powder die...

...C. S. Ramesh; T. B. Prasad Graphite and carbon short fiber (copper coated) reinforced ( 2 wt % ) hypereutectic Al–17%Si alloy composites were prepared by liquid metallurgy route. Room temperature friction and wear properties of as-cast hypereutectic Al–Si alloy reinforced with copper coated...

...Gracious Ngaile; Frank Botz Although water/oil-graphite emulsions are widely used in warm forging processes, they carry environmental concerns. In an attempt to replace graphite-based lubricants in warm forging of aluminum alloys, two variants of boron-nitride-silicone lubricants were formulated...

...Xiangcheng Luo, Ph.D. Graduate Student; D. D. L. Chung, Niagara Mohawk Endowed Chair Professor The tribology of graphite and cement mortar was studied by contact electrical resistance measurement during cyclic compression. Elastic deformation and plastic deformation at asperities were distinctly...

...S. Yoshimoto, Professor,; K. Kohno Recently, graphite porous material has been used successfully in an aerostatic bearing. In actual bearing design, it is often necessary to reduce the thickness of porous material to make the bearing smaller. However, a reduction in thickness results in a reduction...