<P>In this study, niobium (Nb) was added to a Mo-Si-B alloy by a powder metallurgical method to improve the mechanical properties. First, the Mo and Nb powders were pulverized by high-energy ball milling. Then, the synthesized intermetallic comp...
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https://www.riss.kr/link?id=A107649786
Byun, J.M. ; Bang, S.R. ; Kim, S.H. ; Choi, W.J. ; Kim, Y.D.
2017
-
SCIE,SCOPUS
학술저널
14-18(5쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P>In this study, niobium (Nb) was added to a Mo-Si-B alloy by a powder metallurgical method to improve the mechanical properties. First, the Mo and Nb powders were pulverized by high-energy ball milling. Then, the synthesized intermetallic comp...
<P>In this study, niobium (Nb) was added to a Mo-Si-B alloy by a powder metallurgical method to improve the mechanical properties. First, the Mo and Nb powders were pulverized by high-energy ball milling. Then, the synthesized intermetallic compound powders, which were fabricated by continuous heat treatment under a H-2 atmosphere, were mixed with ball-milled Mo and Nb powder. Pressureless sintering was conducted at 1400 degrees C for 3 h under a H-2 atmosphere. The Vickers hardness and fracture toughness were measured to investigate the mechanical properties of the sintered Mo-Si-B and Mo-Nb-Si-B alloy. The Vickers hardness was about 425 Hv for a Mo-Nb-Si-B alloy, which was lower value of 165 Hv compared to Mo-Si-B alloy (590 Hv). On the other hand, the fracture toughness of the Mo-Nb-Si-B alloy (14.5 MPa center dot root m) greatly increased compared to that of the Mo-Si-B alloy (12.6 MPa center dot root m). (C) 2016 Elsevier Ltd. All rights reserved.</P>
Microstructure formation of porous silicon carbide ceramics during β-α phase transformation
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다중 구조의 복합 분말을 이용한 고융점 합금의 고온특성 향상 (1345271766) / 2017 / 개인기초연구(교육부) / 김영도 / 한양대학교 / 교육부 / 50,115,000
산업과학연구소 (1345259507) / 2017 / 이공학학술연구기반구축 / 김성훈 / 한양대학교 / 교육부 / 640,000,000