고주파유도 가열에 의한 나노구조의 텅스텐 카바이드 급속소결과 기계적 성질

Extremely dense WC with a relative density of up to 99% was obtained within five minutes under a pressure of 80 MPa using the High-Frequency Induction Heated Sintering method. The average grain size of the WC was about 71 nm. The advantage of this process is not only rapid densification to obtain a...

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Published in대한금속·재료학회지, 48(11) Vol. 48; no. 11; pp. 1009 - 1013
Main Authors 손인진, In Jin Shon, 고인용, In Yong Ko, 홍경태, Kyung Tae Hong, 도정만, Jung Mann Doh, 강현수, Hyun Su Kang
Format Journal Article
LanguageKorean
Published 대한금속재료학회 20.11.2010
대한금속·재료학회
Subjects
high-frequency induction heated sintering
mechanical properties
nanostructured materials
powder metallurgy
sintering
재료공학
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ISSN1738-8228
2288-8241

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Summary:Extremely dense WC with a relative density of up to 99% was obtained within five minutes under a pressure of 80 MPa using the High-Frequency Induction Heated Sintering method. The average grain size of the WC was about 71 nm. The advantage of this process is not only rapid densification to obtain a neartheoretical density but also the prohibition of grain growth in nano-structured materials. The hardness and fracture toughness of the dense WC produced by HFIHS were 2660 kg·mm?2 and 7.2 MPa·m1/2, respectively.
Bibliography:The Korean Institute of Metals and Materials
G704-000085.2010.48.11.004
ISSN:1738-8228
2288-8241