Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김영도 | - |
dc.date.accessioned | 2019-11-19T06:30:20Z | - |
dc.date.available | 2019-11-19T06:30:20Z | - |
dc.date.issued | 2017-01 | - |
dc.identifier.citation | METALS AND MATERIALS INTERNATIONAL, v. 23, no. 1, page. 170-174 | en_US |
dc.identifier.issn | 1598-9623 | - |
dc.identifier.issn | 2005-4149 | - |
dc.identifier.uri | https://link.springer.com/article/10.1007%2Fs12540-017-6452-z | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/112368 | - |
dc.description.abstract | In recent years, refractory materials with excellent high-temperature properties have been in the spotlight as a next generation's high-temperature materials. Among these, Mo-Si-B alloys composed of two intermetallic compound phases (Mo5SiB2 and Mo3Si) and a ductile alpha-Mo phase have shown an outstanding thermal properties. However, due to the brittleness of the intermetallic compound phases, Mo-Si-B alloys were restricted to apply for the structural materials. So, to enhance the mechanical properties of Mo-Si-B alloys, many efforts to add rare-earth oxide particles in the Mo-Si-B alloy were performed to induce the improvement of strength and fracture toughness. In this study, to investigate the effect of adding nano-sized Y2O3 particles in Mo-Si-B alloy, a core-shell powder consisting of intermetallic compound phases as the core and nano-sized alpha-Mo and Y2O3 particles surrounding the core was fabricated. Then pressureless sintering was carried out at 1400 degrees C for 3 h, and the mechanical properties of sintered bodies with different amounts of Y2O3 particles were evaluated by Vickers hardness and 3-point bending test Vickers hardness was improved by dispersed Y2O3 particles in the Mo-Si-B alloy. Especially, Mo-3Si-1B-1.5Y(2)O(3) alloy had the highest value, 589 Hv. The fracture toughness was measured using Mo-3Si-1B-1.5Y(2)O(3) alloy and the value indicated as 13.5 MPa.root m. | en_US |
dc.description.sponsorship | This work was supported by a research fund of the Agency for Defense Development (ADD) (Project No.211155-911059011). And this research was also supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2015R1D1A1A01057689). | en_US |
dc.language.iso | en | en_US |
dc.publisher | KOREAN INST METALS MATERIALS | en_US |
dc.subject | Mo-Si-B alloy | en_US |
dc.subject | intermetallics | en_US |
dc.subject | Y2O3 | en_US |
dc.subject | powder processing | en_US |
dc.subject | mechanical properties | en_US |
dc.title | Mechanical Properties of Mo-Si-B Alloys Fabricated by Using Core-Shell Powder with Dispersion of Yttria Nanoparticles | en_US |
dc.type | Article | en_US |
dc.relation.no | 1 | - |
dc.relation.volume | 23 | - |
dc.identifier.doi | 10.1007/s12540-017-6452-z | - |
dc.relation.page | 170-174 | - |
dc.relation.journal | METALS AND MATERIALS INTERNATIONAL | - |
dc.contributor.googleauthor | Byun, Jong Min | - |
dc.contributor.googleauthor | Bang, Su-Ryong | - |
dc.contributor.googleauthor | Choi, Won June | - |
dc.contributor.googleauthor | Kim, Min Sang | - |
dc.contributor.googleauthor | Noh, Goo Won | - |
dc.contributor.googleauthor | Kim, Young Do | - |
dc.relation.code | 2017001487 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DIVISION OF MATERIALS SCIENCE AND ENGINEERING | - |
dc.identifier.pid | ydkim1 | - |
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