FUNDAMENTAL INVESTIGATION OF MOLYBDENUM DISULFIDE AS A SOLID LUBRICANT.
Final technical rept. 15 Apr 66-15 May 67,
SOUTHWEST RESEARCH INST SAN ANTONIO TX DEPT OF AEROSPACE PROPULSION RESEARCH
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The basic test facility developed in the first year of this continued program was employed for performing torsion, shear, adhesion, cohesion, and static friction experiments on cylindrically shaped molybdenum disulfide MoS2 specimens in room atmosphere. Compression, tension, and shear experiments were then performed in the basic test facility in a moderate vacuum. The moduli of elasticity for vacuum tests in compression and tension were determined over a wide range of specimen specific gravities. An oscillating friction test facility for performing sliding friction experiments on crossed-cylindrical shaped specimens in a controlled atmosphere or in a high vacuum was designed, fabricated, and put into operation. Compacts of reference MoS2 powder and a commercially available MoS2 powder were made, without binder, over a wide range of specific gravities, for performing the various tests. An x-ray diffraction analysis of both pressure-formed and explosively-formed MoS2 compacts was made to determine preferred orientation, crystallite size, and crystallite strain. A limited amount of compaction work was performed on composite materials, MoS2 being the primary constituent. This work consisted of compression, tensile, and shear experiments using the basic test facility, and sliding friction experiments employing the oscillating friction test facility. Author
- Lubricants and Hydraulic Fluids