Author: Kazuhisa MiyoshiPublisher:
ISBN:
Category :
Languages : en
Pages : 36
Book Description
Friction and Metal Transfer for Single-crystal Silicon Carbide in Contract with Various Metals in Vacuum
Author: Kazuhisa MiyoshiPublisher:
ISBN:
Category : Friction
Languages : en
Pages : 36
Book Description
Friction and Metal Transfer for Single-crystal Silicon Carbide in Contact with Various Metals in Vacuum
Author: Kazuhisa MiyoshiFriction and Metal Transfer for Single-Crystal Silicon Carbide in Contact with Various Metals in Vacuum
Author: National Aeronautics and Space Administration NASAPublisher:
ISBN: 9781720155775
Category :
Languages : en
Pages : 28
Book Description
Sliding friction experiments were conducted with single-crystal silicon carbide in contact with transition metals (tungsten, iron, rhodium, nickel, titanium, and cobalt), copper, and aluminum. Results indicate the coefficient of friction for a silicon carbide-metal system is related to the d bond character and relative chemical activity of the metal. The more active the metal, the higher the coefficient of friction. All the metals examined transferred to the surface of silicon carbide in sliding. The chemical activity of metal to silicon and carbon and shear modulus of the metal may play important roles in metal transfer and the form of the wear debris. The less active and greater resistance to shear the metal has, with the exception of rhodium and tungsten, the less transfer to silicon carbide. Miyoshi, K. and Buckley, D. H. Glenn Research Center NASA-TP-1191, E-9307 RTOP 506-16
Wear of Single-crystal Silicon Carbide in Contact with Various Metals in Vacuum
Author: Kazuhisa MiyoshiPublisher:
ISBN:
Category : Auger effect
Languages : en
Pages : 36
Book Description
Sliding friction experiments were conducted in vacuum with single-crystal silicon carbide (0001) surface in contact with transition metals (tungsten, iron, rhodium, nickel, titanium, and cobalt), copper, and aluminum. The hexagon-shaped cracking and fracturing of silicon carbide that occurred is believed to be due to cleavages of both the prismatic and basal planes. The silicon carbide wear debris, which was produced by brittle fracture, slides or rolls on both the metal and silicon carbide and produces grooves and indentations on these surfaces. The wear scars of aluminum and titanium, which have much stronger chemical affinity for silicon and carbon, are generally rougher than those of the other metals. Fracturing and cracking along the grain boundary of rhodium and tungsten were observed. These may be primarily due to the greater shear moduli of the metals.
NASA Technical Memorandum
Author: NASA Technical Paper
Author: NASA Technical Paper
Author: United States. National Aeronautics and Space AdministrationPublisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 578
Book Description
Monthly Catalog of United States Government Publications
Author: United States. Superintendent of DocumentsPublisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1250
Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Monthly Catalogue, United States Public Documents
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1136
Book Description
Author: