Self-Consolidation Mechanism of Ti5Si3 Compact Obtained by Electro-Discharge-Sintering Directly from Physically Blended Ti-37.5 at.% Si Powder Mixture
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. Dur...
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Polish Academy of Sciences
2017-06-01
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| Series: | Archives of Metallurgy and Materials |
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| Online Access: | http://www.degruyter.com/view/j/amm.2017.62.issue-2/amm-2017-0196/amm-2017-0196.xml?format=INT |
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| author | Chang S.Y. Cheon Y.W. Yoon Y.H. Kim Y.H. Kim J.Y. Lee Y.K. Lee W.H. |
| author_facet | Chang S.Y. Cheon Y.W. Yoon Y.H. Kim Y.H. Kim J.Y. Lee Y.K. Lee W.H. |
| author_sort | Chang S.Y. |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-17T03:59:44Z |
| format | Article |
| id | doaj.art-bd32a9da931347dca72492a73de991d1 |
| institution | Directory Open Access Journal |
| issn | 2300-1909 |
| language | English |
| last_indexed | 2024-12-17T03:59:44Z |
| publishDate | 2017-06-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Metallurgy and Materials |
| spelling | doaj.art-bd32a9da931347dca72492a73de991d12022-12-21T22:04:33ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092017-06-016221299130210.1515/amm-2017-0196amm-2017-0196Self-Consolidation Mechanism of Ti5Si3 Compact Obtained by Electro-Discharge-Sintering Directly from Physically Blended Ti-37.5 at.% Si Powder MixtureChang S.Y.0Cheon Y.W.1Yoon Y.H.2Kim Y.H.3Kim J.Y.4Lee Y.K.5Lee W.H.6Korea Aerospace University, Department of Materials Engineering, Goyang-Si 10510, KoreaFaculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul05000, KoreaFaculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul05000, KoreaWonkwang Health Science University, Department of Dental Laboratory, Iksan54538, KoreaUiduk University, Division of Green Energy Engineering, Kyeongju38004, KoreaUiduk University, Division of Green Energy Engineering, Kyeongju38004, KoreaFaculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul05000, KoreaCharacteristics 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.http://www.degruyter.com/view/j/amm.2017.62.issue-2/amm-2017-0196/amm-2017-0196.xml?format=INTSinteringMechanical alloyingPowder consolidationIntermetallic compoundsTitanium silicide |
| spellingShingle | Chang S.Y. Cheon Y.W. Yoon Y.H. Kim Y.H. Kim J.Y. Lee Y.K. Lee W.H. Self-Consolidation Mechanism of Ti5Si3 Compact Obtained by Electro-Discharge-Sintering Directly from Physically Blended Ti-37.5 at.% Si Powder Mixture Archives of Metallurgy and Materials Sintering Mechanical alloying Powder consolidation Intermetallic compounds Titanium silicide |
| title | Self-Consolidation Mechanism of Ti5Si3 Compact Obtained by Electro-Discharge-Sintering Directly from Physically Blended Ti-37.5 at.% Si Powder Mixture |
| title_full | Self-Consolidation Mechanism of Ti5Si3 Compact Obtained by Electro-Discharge-Sintering Directly from Physically Blended Ti-37.5 at.% Si Powder Mixture |
| title_fullStr | Self-Consolidation Mechanism of Ti5Si3 Compact Obtained by Electro-Discharge-Sintering Directly from Physically Blended Ti-37.5 at.% Si Powder Mixture |
| title_full_unstemmed | Self-Consolidation Mechanism of Ti5Si3 Compact Obtained by Electro-Discharge-Sintering Directly from Physically Blended Ti-37.5 at.% Si Powder Mixture |
| title_short | Self-Consolidation Mechanism of Ti5Si3 Compact Obtained by Electro-Discharge-Sintering Directly from Physically Blended Ti-37.5 at.% Si Powder Mixture |
| title_sort | self consolidation mechanism of ti5si3 compact obtained by electro discharge sintering directly from physically blended ti 37 5 at si powder mixture |
| topic | Sintering Mechanical alloying Powder consolidation Intermetallic compounds Titanium silicide |
| url | http://www.degruyter.com/view/j/amm.2017.62.issue-2/amm-2017-0196/amm-2017-0196.xml?format=INT |
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