Hardness and Wear Resistance of Reaction Bonded SiC-B4C Composite

Kee Sung Lee; In Sub Han; Yong Hee Chung; Sang Kuk Woo; Soo Wohn Lee

doi:10.4028/www.scientific.net/MSF.486-487.245

Paper Titles

Probabilistic Assessment for Failure Probability of Pipe Lines by Extreme Value Distribution
p.229

Analysis of Pipe Flow during Transportation of Magnesium Alloy Melt
p.233

Effect of Sintering Atmospheres on the Microstructure Evolution of Alumina/Alumina:SiC Whisker Laminate Composites
p.237

Embrittlement Fracture in a 17-4 PH Stainless Steel after Aging at 400°C
p.241

Hardness and Wear Resistance of Reaction Bonded SiC-B₄C Composite
p.245

Friction Stir Welding of Dissimilar Formed Mg Alloys (AZ31/AZ91)
p.249

Fabrication and Thermoelectric Properties of N-Type Bi₂Te₃ Based Compounds by Spark Plasma Sintering
p.253

Equilibrium and Metastable Eutectics Near the Ni₃Al Composition
p.257

Effect of Skin Pass Mill Elongation on Characteristics of Surface Friction and Formability
p.261

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Hardness and Wear Resistance of Reaction Bonded SiC-B₄C Composite

Abstract:

Hardness and wear resistant characteristics of reaction-bonded silicon carbides with boron carbide additions are evaluated relative to those of reaction bonded silicon carbide (RBSC). The reaction-bonded SiC-B4C composites exhibit a distinctive improvement of hardness and wear resistance, indicative of high resistance against wear environment. Removal rates for the wear tests are decisively reduced by the addition of boron carbide in the composites. Controlling the amount of carbon content in the starting composition more enhances the hardness of the reaction-bonded composites. Implications concerning the partial decomposition of B4C during reaction process are considered.