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dc.contributor.author김영도-
dc.date.accessioned2019-11-24T17:48:36Z-
dc.date.available2019-11-24T17:48:36Z-
dc.date.issued2017-04-
dc.identifier.citationJOM, v. 69, no. 4, page. 683-688en_US
dc.identifier.issn1047-4838-
dc.identifier.issn1543-1851-
dc.identifier.urihttps://link.springer.com/article/10.1007%2Fs11837-016-2243-0-
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/113787-
dc.description.abstractIn this study, we investigate the effect of oxide dispersion strengthening on mechanical properties by dispersion of nano-sized Ta2O5 particles in Mo-Si-B alloy. A Mo-Si-B core-shell powder consisting of two intermetallic compounds of Mo5SiB2 and Mo3Si as the core and nano-sized Mo solid solution surrounding intermetallic compounds was fabricated by chemical vapor transport. And Mo-Si-B core-shell powder with uniformly dispersed nano-sized Ta2O5 particles on the surface of a Mo solid solution shell was produced by a wet blending process with TaCl5 solution and heat treatment. Then, pressureless sintering was performed at 1400A degrees C for 3 h under a H-2 atmosphere. The hardness and fracture toughness of the Ta2O5-dispersed Mo-Si-B alloy were measured using Vickers hardness and 3-point bending tests, respectively. The Vickers hardness and fracture toughness of the fabricated Mo-Si-B-Ta2O5 alloy were more improved than that of the Mo-Si-B alloy fabricated using core-shell powder with no addition of Ta2O5 particles (Mo-Si-B alloy: 353 Hv, 13.5 MPa center dot aem, Mo-Si-B-Ta2O5 alloy: 509 Hv, 15.1 MPa center dot aem).en_US
dc.description.sponsorshipThis research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2016R1A6A1A03013422). 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.isoen_USen_US
dc.publisherSPRINGERen_US
dc.subjectMECHANICAL-PROPERTIESen_US
dc.subjectTEMPERATUREen_US
dc.subjectMICROSTRUCTUREen_US
dc.subjectFRACTUREen_US
dc.titleFabrication of Ta2O5 Dispersion-Strengthened Mo-Si-B Alloy by Powder Metallurgical Methoden_US
dc.typeArticleen_US
dc.relation.no4-
dc.relation.volume69-
dc.identifier.doi10.1007/s11837-016-2243-0-
dc.relation.page683-688-
dc.relation.journalJOM-
dc.contributor.googleauthorByun, Jong Min-
dc.contributor.googleauthorChoi, Won June-
dc.contributor.googleauthorBang, Su-Ryong-
dc.contributor.googleauthorPark, Chun Woong-
dc.contributor.googleauthorKim, Young Do-
dc.relation.code2017000568-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDIVISION OF MATERIALS SCIENCE AND ENGINEERING-
dc.identifier.pidydkim1-
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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