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Cu 입자분산 Al2O3 나노복합재료의 미세조직과 기계적 특성에 미치는 소결온도의 영향

Title
Cu 입자분산 Al2O3 나노복합재료의 미세조직과 기계적 특성에 미치는 소결온도의 영향
Other Titles
Effect of Sintering Temperature on Microstructure and Mechanical Properties of Cu Particles Dispersed Al2O3 Nanocomposites
Author
좌용호
Keywords
nanocomposites; Sintering temperature; Microstructure; Mechanical properties
Issue Date
2006-10
Publisher
한국분말야금학회
Citation
한국분말야금학회지, v. 13, No. 5, Page. 366-370
Abstract
The microstructure and mechanical properties of hot-pressed composites with a different sintering temperature have been studied. The size of matrix grain and Cu dispersion in composites increased with increase in sintering temperature. Fracture toughness of the composite sintered at high temperature exhibited an enhanced value. The toughness increase was explained by the thermal residual stress, crack bridging and crack branching by the formation of microcrack. The nanocomposite, hot-pressed at , showed the maximum fracture strength of 707 MPa. The strengthening was mainly attributed to the refinement of matrix grains and the increased toughness.
URI
http://db.koreascholar.com/Article?code=2505https://repository.hanyang.ac.kr/handle/20.500.11754/110025
ISSN
2287-8173; 1225-7591
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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