Self-Consolidation Mechanism of Ti5Si3 Compact Obtained by Electro-Discharge-Sintering Directly from Physically Blended Ti-37.5 At.% Si Powder Mixture

• Autorzy: Chang S. Y. , Cheon Y. W. , Yoon Y. H. , Kim Y. H. , Kim J. Y. , Lee Y. K. , Lee W. H.

Identyfikatory

DOI

10.1515/amm-2017-0196

• Języki publikacji: EN

Abstrakty

EN

Characteristics of electro-discharge-sintering of the Ti-37.5at.% Si powder mixture was investigated as a function of the input energy, capacitance, and discharge time without applying any external pressure. A solid bulk of Ti₅Si₃ was obtained only after in less than 129 μsec by the EDS process. During a discharge, the heat is generated to liquefy and alloy the particles, and which enhances the pinch pressure can condensate them without allowing a formation of pores. Three step processes for the self-consolidation mechanism during EDS are proposed; (a) a physical breakdown of oxide film on elemental as-received powder particles, (b) alloying and densifying the consolidation of powder particles by the pinch pressure, and (c) diffusion of impurities into the consolidated surface.

Słowa kluczowe

EN

sintering; mechanical alloying; powder consolidation; intermetallic compounds; titanium silicide

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2017
• Tom: Vol. 62, iss. 2B
• Strony: 1299--1302
• Opis fizyczny: Bibliogr. 13 poz., rys., tab.

Twórcy

autor

Chang S. Y.

• Korea Aerospace University, Department of Materials Engineering, Goyang-Si 10510, Korea

autor

Cheon Y. W.

• Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05000, Korea

autor

Yoon Y. H.

• Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05000, Korea

autor

Kim Y. H.

• Wonkwang Health Science University, Department of Dental Laboratory, Iksan 54538, Korea

autor

Kim J. Y.

• Uiduk University, Division of Green Energy Engineering, Kyeongju 38004, Korea

autor

Lee Y. K.

• Uiduk University, Division of Green Energy Engineering, Kyeongju 38004, Korea

autor

Lee W. H.

• Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05000, Korea

Bibliografia

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• [10] W.H. Lee, Y.J. Jo, Y.H. Kim, Y.H. Jo, J.G. Seong, C.J. Van Tyne, S.Y. Chang, Archives Metall. Mater. 60, 1185 (2015).
• [11] Y.J. Jo, Y.H. Kim, Y.H. Jo, J.G. Seong, S.Y. Chang, C.J. Van Tyne, W.H. Lee, J. NanoSci. Nanotechnol. 14, 8429 (2014).
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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)