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http://dx.doi.org/10.21289/KSIC.2020.23.4.669

Fabrication and High-temerature Mechanical Property of Liquid-Phase-Sintered SiC  

Lee, Moonhee (Division of Mechanical Engineering, Dong-Eui Institute of Technology)
Kim, Sungwon (Division of Mechanical Engineering, Dong-Eui Institute of Technology)
Lee, Jongho (Division of Automotive Engineering, Dong-Eui Institute of Technology)
Hwang, SeungKuk (Dept. of mechanical system, Changwon Campus Korea Polytechnics)
Gwak, Jaehwan (Dept. of Mechanical Engineering, Dong-Eui university)
Lee, Jinkyung (Dept. of Mechanical Engineering, Dong-Eui university)
Lee, Sangpill (Dept. of Mechanical Engineering, Dong-Eui university)
Publication Information
Journal of the Korean Society of Industry Convergence / v.23, no.4_2, 2020 , pp. 669-674 More about this Journal
Abstract
Liquid-phase-sintered (LPS) SiC materials were briefly examined with their microstructure and mechanical property. Especially, effect of high-temperature exposure on the tendency of fracture toughness of LPS-SiC were introduced. The LPS-SiC was fabricated in hot-press by sintering powder mixture of sub-micron SiC and sintering additives of Al2O3-Y2O3. LPS-SiC represented dense morphology and SiC grain-growth with some amount of micro-pores and clustered additives as pore-filling. The strength of LPS-SiC might affected by distribution of micro-pores. LPS-SiC tended to decrease fracture toughness depending on increasing exposure temperature and time.
Keywords
Silicon carbide; Liquid phase sintering; Additives; Thermal exposure; Flexural strength; Vickers hardness; Fracture toughness;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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