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http://dx.doi.org/10.4191/KCERS.2003.40.9.881

Wear Behavior of Alumina-glass Composites Prepared by Melt Infiltration  

이세종 (경성대학교 재료공학과)
Publication Information
Abstract
Wear and friction properties of the alumina-glass dental ceramics were evaluated in exact in vitro environment (artificial saliva at 37$^{\circ}C$), using a ball-on-disc apparatus, at contact loads from 49 N to 196 N and with the disc rotating at 120 rpm up to 10$^{6}$ cycles to investigate the wear behavior. As the load increased from 49 N to 196 N, the friction coefficient of 0.025 was maintained, however, the volumetric wear rate rose from 2.18 ${\times}$10$^{-9}$TEX>$mm^{3}$/Nㆍm to 2.35 ${\times}$10$^{-6}$TEX>$mm^{3}$/Nㆍm. Experimental results indicated that the wear behavior of the alumina-glass composites with a sliding distance of 4.4 km was a typical adhesive wear, which was applicable for orthodontia ceramic brackets.
Keywords
Wear; In-vitro; Alumina-glass composites; Dental brackets;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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