Plasma sintering behavior of binderless WC powders

Pure WC powders which does not include a binder phase were consolidated by spark plasma sintering (SPS) process at 1600/spl sim/1850/spl deg/C for 0/spl sim/30 min under 50 MPa. Microstructure and mechanical properties of binderless WC prepared by SPS were investigated. With increasing sintering tem...

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Hauptverfasser:	Hwan-Tae Kim, Dong-Wook Choi, Ji-Soon Kim, Young-Soon Kwon, Hye-Suk Kwon, Eung-Ryul Baek
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Immune system Inorganic materials Mechanical factors Optical wavelength conversion Plasma density Plasma materials processing Plasma properties Plasma temperature Powders Sparks
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creator	Hwan-Tae Kim Dong-Wook Choi Ji-Soon Kim Young-Soon Kwon Hye-Suk Kwon Eung-Ryul Baek
description	Pure WC powders which does not include a binder phase were consolidated by spark plasma sintering (SPS) process at 1600/spl sim/1850/spl deg/C for 0/spl sim/30 min under 50 MPa. Microstructure and mechanical properties of binderless WC prepared by SPS were investigated. With increasing sintering temperature, sintered density and Vickers hardness of binderless WC increased. The fracture toughness of binderless WC was 7/spl sim/15 MPam/sup 1/2/ according to sintered density and revealed the tendency to decrease with increasing the Vickers hardness. It is found that the binderless WC prepared by SPS at 1750/spl deg/C for 10 min under 50 MPa showed nearly full densification with fine-grained structure and revealed excellent mechanical properties of high hardness (/spl sim/ HV 2400) and considerably high fracture toughness (/spl sim/ 7 MPam/sup 1/2/).
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It is found that the binderless WC prepared by SPS at 1750/spl deg/C for 10 min under 50 MPa showed nearly full densification with fine-grained structure and revealed excellent mechanical properties of high hardness (/spl sim/ HV 2400) and considerably high fracture toughness (/spl sim/ 7 MPam/sup 1/2/).</description><subject>Immune system</subject><subject>Inorganic materials</subject><subject>Mechanical factors</subject><subject>Optical wavelength conversion</subject><subject>Plasma density</subject><subject>Plasma materials processing</subject><subject>Plasma properties</subject><subject>Plasma temperature</subject><subject>Powders</subject><subject>Sparks</subject><isbn>8978686176</isbn><isbn>9788978686174</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2003</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNotjM1KAzEURgMiqLVP0E1eYGBybyaTLGXwDwp2UXBZbpIbG5nOlKQovr0D-m0O5yy-K3FnXW-NNao3N2Jd62e7DJ0Bi7cCdiPVE8mapwuXPH1Iz0f6ynORc5I-T5HLyLXK90Ge5-_F6r24TjRWXv9zJfZPj_vhpdm-Pb8OD9smu_bSKE3YsYNEGnSvIiTVtVFpZBODtx14DK1TKZJfAgAlH8jb2AfdxWAcrsTm7zYz8-Fc8onKz0EBADrEX4sCPbc</recordid><startdate>2003</startdate><enddate>2003</enddate><creator>Hwan-Tae Kim</creator><creator>Dong-Wook Choi</creator><creator>Ji-Soon Kim</creator><creator>Young-Soon Kwon</creator><creator>Hye-Suk Kwon</creator><creator>Eung-Ryul Baek</creator><general>IEEE</general><scope>6IE</scope><scope>6IL</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIL</scope></search><sort><creationdate>2003</creationdate><title>Plasma sintering behavior of binderless WC powders</title><author>Hwan-Tae Kim ; Dong-Wook Choi ; Ji-Soon Kim ; Young-Soon Kwon ; Hye-Suk Kwon ; Eung-Ryul Baek</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i90t-14a35e92fa42471d2f150d143e6dcb852b3c091fdab6dc22afbcab8d7c45dc693</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Immune system</topic><topic>Inorganic materials</topic><topic>Mechanical factors</topic><topic>Optical wavelength conversion</topic><topic>Plasma density</topic><topic>Plasma materials processing</topic><topic>Plasma properties</topic><topic>Plasma temperature</topic><topic>Powders</topic><topic>Sparks</topic><toplevel>online_resources</toplevel><creatorcontrib>Hwan-Tae Kim</creatorcontrib><creatorcontrib>Dong-Wook Choi</creatorcontrib><creatorcontrib>Ji-Soon Kim</creatorcontrib><creatorcontrib>Young-Soon Kwon</creatorcontrib><creatorcontrib>Hye-Suk Kwon</creatorcontrib><creatorcontrib>Eung-Ryul Baek</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan All Online (POP All Online) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP All) 1998-Present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Hwan-Tae Kim</au><au>Dong-Wook Choi</au><au>Ji-Soon Kim</au><au>Young-Soon Kwon</au><au>Hye-Suk Kwon</au><au>Eung-Ryul Baek</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Plasma sintering behavior of binderless WC powders</atitle><btitle>7th Korea-Russia International Symposium on Science and Technology, Proceedings KORUS 2003. (IEEE Cat. No.03EX737)</btitle><stitle>KORUS</stitle><date>2003</date><risdate>2003</risdate><volume>1</volume><spage>56</spage><epage>62 vol.1</epage><pages>56-62 vol.1</pages><isbn>8978686176</isbn><isbn>9788978686174</isbn><abstract>Pure WC powders which does not include a binder phase were consolidated by spark plasma sintering (SPS) process at 1600/spl sim/1850/spl deg/C for 0/spl sim/30 min under 50 MPa. Microstructure and mechanical properties of binderless WC prepared by SPS were investigated. With increasing sintering temperature, sintered density and Vickers hardness of binderless WC increased. The fracture toughness of binderless WC was 7/spl sim/15 MPam/sup 1/2/ according to sintered density and revealed the tendency to decrease with increasing the Vickers hardness. It is found that the binderless WC prepared by SPS at 1750/spl deg/C for 10 min under 50 MPa showed nearly full densification with fine-grained structure and revealed excellent mechanical properties of high hardness (/spl sim/ HV 2400) and considerably high fracture toughness (/spl sim/ 7 MPam/sup 1/2/).</abstract><pub>IEEE</pub></addata></record>
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subjects	Immune system Inorganic materials Mechanical factors Optical wavelength conversion Plasma density Plasma materials processing Plasma properties Plasma temperature Powders Sparks
title	Plasma sintering behavior of binderless WC powders
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