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Densification Behavior of Mechanically Alloyed NiAl Powder Compact during Spark-plasma Sintering and its Mechanical Property KCI 등재
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- URLhttps://db.koreascholar.com/Article/Detail/2291
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한국분말야금학회지
(Journal of Korean Powder Metallurgy Institute)
Vol. 10 No. 3 (2003.06)
pp.172-175
pp.172-175
한국분말재료학회(구 한국분말야금학회)
(Korean Powder Metallurgy Institute)
초록
Mechanically-alloyed NiAl powder was sintered by Spark-Plasma Sintering (SPS) process. Densification and behavior mechanical property were determined from the experimental results and analysis ,such as changes in linear shrinkage, shrinkage rate, microstructure, and phase during sintering process, Victors hardness, and transver.ie-rupture-strength (TRS). Above 97% relative density was obtained after sintering at 115 for 5 min. Crystallite size determined by the Scherrer method was approximately 50 nm. From the X-ray diffraction analysis it was confirmed that the sintered bodies were composed mainly of NiAl phase together with NiAl phase. Measured Vickers hardness and TRS value were 55510 and 139375 MPa , respectively.
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