ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Metallic biomaterials are used as bone plate, dental implant, wire, electrode, and so on. For thepurpose of providing the medical services with higher quality, the frictional and wear behavior ofCu47Ti34Zr11Ni8, (Cu47Ti34Zr11Ni8)99Si, Zr41Ti14Cu12.5Ni10Be22.5 and Zr57Nb5Cu15.4Ni12.6Al10 bulk metallicglasses (BMG) against ceramic ( Si3N4) at room temperature under dry sliding and lubrication of freshplasma, distilled water, and physiological saline conditions were investigated on a pin-on-disc testingmachine. Under identical sliding condition, the steady state friction coefficients of BMGs were observedwith values ranging from 0.6 to 0.9 under dry sliding, 0.5 to 0.8 under lubrication with distilled water, 0.5to 0.7 under lubrication with physiological saline, and 0.3 to 0.7 under lubrication with fresh plasma,respectively. Wear rates of BMGs indicated significant difference that the Cu-based metallic glassesexhibited higher wear resistance than that of Zr-based glasses. The surface tracks indicated the existenceof viscous flow and the material transfer occurred from BMG rod to the ceramic disc. Since tribologicalproperties are not intrinsic properties, those results demonstrated the influences of the environment andthe characteristics of BMGs on the frictional behaviors, and furthermore indicated that BMGs may beone of the promising biomaterials in the future
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.330-332.1215.pdf
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