Densification of Mo Nanopowders by Ultra High Pressure Compaction
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ahn, Chi Hyeong | - |
dc.contributor.author | Choi, Won June | - |
dc.contributor.author | Park, Chun Woong | - |
dc.contributor.author | Lee, Seung Yeong | - |
dc.contributor.author | Kim, Young Do | - |
dc.date.accessioned | 2021-08-02T13:52:19Z | - |
dc.date.available | 2021-08-02T13:52:19Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2018-03 | - |
dc.identifier.issn | 1225-0562 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/17733 | - |
dc.description.abstract | Molybdenum (Mo) is one of the representative refractory metals for its high melting point, superior thermal conductivity, low density and low thermal expansion coefficient. However, due to its high melting point, it is necessary for Mo products to be fabricated at a high sintering temperature of over 1800-2000 degrees C. Because this process is expensive and inefficient, studies to improve sintering property of Mo have been researched actively. In this study, we fabricated Mo nanopowders to lower the sintering temperature of Mo and tried to consolidate the Mo nanopowders through ultra high pressure compaction. We first fabricated Mo nanopowders by a mechano-chemical process to increase the specific surface area of the Mo powders. This process includes a high-energy ball milling step and a reduction step in a hydrogen atmosphere. We compacted the Mo nanopowders with ultra high pressure by magnetic pulsed compaction (MPC) before pressureless sintering. Through this process, we were able to improve the green density of the Mo compacts by more than 20% and fabricate a high density Mo sintered body with more than a 95 % sintered density at relatively low temperature. | - |
dc.language | 한국어 | - |
dc.language.iso | ko | - |
dc.publisher | MATERIALS RESEARCH SOC KOREA | - |
dc.title | Densification of Mo Nanopowders by Ultra High Pressure Compaction | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Young Do | - |
dc.identifier.doi | 10.3740/MRSK.2018.28.3.166 | - |
dc.identifier.scopusid | 2-s2.0-85048599583 | - |
dc.identifier.wosid | 000430883600006 | - |
dc.identifier.bibliographicCitation | KOREAN JOURNAL OF MATERIALS RESEARCH, v.28, no.3, pp.166 - 173 | - |
dc.relation.isPartOf | KOREAN JOURNAL OF MATERIALS RESEARCH | - |
dc.citation.title | KOREAN JOURNAL OF MATERIALS RESEARCH | - |
dc.citation.volume | 28 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 166 | - |
dc.citation.endPage | 173 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.identifier.kciid | ART002331615 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | MOLYBDENUM POWDERS | - |
dc.subject.keywordAuthor | molybdenum | - |
dc.subject.keywordAuthor | nanopowders | - |
dc.subject.keywordAuthor | magnetic pulsed compaction | - |
dc.subject.keywordAuthor | ultra high pressure compaction | - |
dc.subject.keywordAuthor | densification | - |
dc.identifier.url | https://journal.mrs-k.or.kr/articles/article/7zV0/#Information | - |
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