116 0

Full metadata record

DC FieldValueLanguage
dc.contributor.author김영도-
dc.date.accessioned2019-11-26T04:52:55Z-
dc.date.available2019-11-26T04:52:55Z-
dc.date.issued2017-06-
dc.identifier.citationINTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, v. 65, page. 39-44en_US
dc.identifier.issn0263-4368-
dc.identifier.urihttps://www.sciencedirect.com/science/article/abs/pii/S0263436816304280?via%3Dihub-
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/114545-
dc.description.abstractUnderstanding the microstructure of W-Cu nanocomposite powder is essential for elucidating its sintering mechanism. In this study, the effect of milling time on the structural characteristics and densification behavior of W-Cu composite powders synthesized from WO3-CuO powder mixtures was investigated. The mixture of WO3 and CuO powders was ball-milled in a bead mill for 1 h and 10 h followed by reduction by heat-treating the mixture at 800 degrees C in H-2 atmosphere with a heating rate of 2 degrees C/min to produce W-Cu composite powder. The microstructure analysis of the reduced powder obtained by milling for 1 h revealed the formation of W-Cu powder consisting of W nanoparticle-attached Cu microparticles. However, Cu-coated W nanocomposite powder consisting of W nanoparticles coated with a Cu layer was formed when the Mixture was milled for 10 h. Cu-coated W nanopowder exhibited an excellent sinterability not only in the solid-phase sintering stage (SPS) but also in the liquid-phase sintering stage (LPS). A high relative sintered density of 96.0% was obtained at 1050 degrees C with a full densification occurring on sintering the sample at 1100 degrees C. The 1 h-milled W-Cu powder exhibited a high sinterability only in the LPS stage to achieve a nearly full densification at 1200 degrees C. (C) 2016 Elsevier Ltd. All rights reserved.en_US
dc.language.isoen_USen_US
dc.publisherELSEVIER SCI LTDen_US
dc.subjectMechano-chemical processen_US
dc.subjectW-Cuen_US
dc.subjectRaw materialsen_US
dc.subjectSolid phase sinteringen_US
dc.subjectLiquid phase sinteringen_US
dc.titleEffect of ball-milling time on structural characteristics and densification behavior of W-Cu composite powder produced from WO3-CuO powder mixturesen_US
dc.typeArticleen_US
dc.relation.noSpecial SI-
dc.relation.volume65-
dc.identifier.doi10.1016/j.ijrmhm.2016.11.012-
dc.relation.page39-44-
dc.relation.journalINTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS-
dc.contributor.googleauthorRyu, Sung-Soo-
dc.contributor.googleauthorPark, Hae-Ryong-
dc.contributor.googleauthorKim, Young Do-
dc.contributor.googleauthorHong, Hyun Seon-
dc.relation.code2017008564-
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
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE