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Apparent viscosity of W–Cu powder compacts during sintering
The apparent rigidity of W–Cu (35 vol.%) powder compacts during sintering is characterised from the determination of axial viscosity by dilatometry under sequential loading. The study is carried out on composite powders containing submicron size phases, in the temperature range 1020–1100 °C in which...
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| Published in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2004-10, Vol.383 (2), p.390-398 |
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| Language: | English |
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| cites | cdi_FETCH-LOGICAL-c392t-ccbfadc319f60e0cb4cf6be32b3de8e1c796fe78b35dfb02d2e3443388c205cb3 |
| container_end_page | 398 |
| container_issue | 2 |
| container_start_page | 390 |
| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
| container_volume | 383 |
| creator | Doré, F. Martin, C.L. Allibert, C.H. |
| description | The apparent rigidity of W–Cu (35
vol.%) powder compacts during sintering is characterised from the determination of axial viscosity by dilatometry under sequential loading. The study is carried out on composite powders containing submicron size phases, in the temperature range 1020–1100
°C in which a significant shrinkage is evidenced by conventional dilatometry. When the sintering bodies density increases from 0.5 to 0.74
d
th, the axial viscosity increases from 10
3 to 13 × 10
3
MPa
s in solid state and from 0.5 × 10
3 to 4 × 10
3
MPa
s when Cu is liquid. These rather low values do not indicate the formation of a rigid W particle network. From about 1060 to 1100
°C, the rapid shrinkage, the low axial viscosity and the significant microstructure change support a densification process by rearrangement by viscous flow. |
| doi_str_mv | 10.1016/j.msea.2004.05.050 |
| format | article |
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vol.%) powder compacts during sintering is characterised from the determination of axial viscosity by dilatometry under sequential loading. The study is carried out on composite powders containing submicron size phases, in the temperature range 1020–1100
°C in which a significant shrinkage is evidenced by conventional dilatometry. When the sintering bodies density increases from 0.5 to 0.74
d
th, the axial viscosity increases from 10
3 to 13 × 10
3
MPa
s in solid state and from 0.5 × 10
3 to 4 × 10
3
MPa
s when Cu is liquid. These rather low values do not indicate the formation of a rigid W particle network. From about 1060 to 1100
°C, the rapid shrinkage, the low axial viscosity and the significant microstructure change support a densification process by rearrangement by viscous flow.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2004.05.050</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Apparent viscosity ; Applied sciences ; Densification ; Exact sciences and technology ; Metal powders ; Metals. Metallurgy ; Powder metallurgy. Composite materials ; Processes ; Production techniques ; W–Cu</subject><ispartof>Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2004-10, Vol.383 (2), p.390-398</ispartof><rights>2004 Elsevier B.V.</rights><rights>2004 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c392t-ccbfadc319f60e0cb4cf6be32b3de8e1c796fe78b35dfb02d2e3443388c205cb3</citedby><cites>FETCH-LOGICAL-c392t-ccbfadc319f60e0cb4cf6be32b3de8e1c796fe78b35dfb02d2e3443388c205cb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=16116163$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Doré, F.</creatorcontrib><creatorcontrib>Martin, C.L.</creatorcontrib><creatorcontrib>Allibert, C.H.</creatorcontrib><title>Apparent viscosity of W–Cu powder compacts during sintering</title><title>Materials science & engineering. A, Structural materials : properties, microstructure and processing</title><description>The apparent rigidity of W–Cu (35
vol.%) powder compacts during sintering is characterised from the determination of axial viscosity by dilatometry under sequential loading. The study is carried out on composite powders containing submicron size phases, in the temperature range 1020–1100
°C in which a significant shrinkage is evidenced by conventional dilatometry. When the sintering bodies density increases from 0.5 to 0.74
d
th, the axial viscosity increases from 10
3 to 13 × 10
3
MPa
s in solid state and from 0.5 × 10
3 to 4 × 10
3
MPa
s when Cu is liquid. These rather low values do not indicate the formation of a rigid W particle network. From about 1060 to 1100
°C, the rapid shrinkage, the low axial viscosity and the significant microstructure change support a densification process by rearrangement by viscous flow.</description><subject>Apparent viscosity</subject><subject>Applied sciences</subject><subject>Densification</subject><subject>Exact sciences and technology</subject><subject>Metal powders</subject><subject>Metals. Metallurgy</subject><subject>Powder metallurgy. Composite materials</subject><subject>Processes</subject><subject>Production techniques</subject><subject>W–Cu</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNqFkM9Kw0AQxhdRsFZfwFMuekud3UnSBPRQiv9A8KJ4XDaTWdnSJnE3rfTmO_iGPokJFbzp8MHM4Ztvhp8QpxImEmR2sZisApuJAkgmkPaCPTGS-RTjpMBsX4ygUDJOocBDcRTCAgBkAulIXM3a1niuu2jjAjXBdduosdHL18fnfB21zXvFPqJm1RrqQlStvatfo-DqjofpWBxYswx88tPH4vnm-ml-Fz883t7PZw8xYaG6mKi0piKUhc2AgcqEbFYyqhIrzlnStMgsT_MS08qWoCrFmCSIeU4KUipxLM53ua1v3tYcOr3qv-Xl0tTcrIPGFBAhgX-NKkc1xb7GQu2M5JsQPFvdercyfqsl6AGpXugBqR6Qakh7DelnP-kmkFlab2py4Xczk72yIfxy5-Oeycax14Ec18SV80ydrhr315lvrfCN9g</recordid><startdate>20041015</startdate><enddate>20041015</enddate><creator>Doré, F.</creator><creator>Martin, C.L.</creator><creator>Allibert, C.H.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>H8G</scope><scope>JG9</scope><scope>7SR</scope></search><sort><creationdate>20041015</creationdate><title>Apparent viscosity of W–Cu powder compacts during sintering</title><author>Doré, F. ; Martin, C.L. ; Allibert, C.H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c392t-ccbfadc319f60e0cb4cf6be32b3de8e1c796fe78b35dfb02d2e3443388c205cb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Apparent viscosity</topic><topic>Applied sciences</topic><topic>Densification</topic><topic>Exact sciences and technology</topic><topic>Metal powders</topic><topic>Metals. Metallurgy</topic><topic>Powder metallurgy. Composite materials</topic><topic>Processes</topic><topic>Production techniques</topic><topic>W–Cu</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Doré, F.</creatorcontrib><creatorcontrib>Martin, C.L.</creatorcontrib><creatorcontrib>Allibert, C.H.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><collection>Engineered Materials Abstracts</collection><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Doré, F.</au><au>Martin, C.L.</au><au>Allibert, C.H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Apparent viscosity of W–Cu powder compacts during sintering</atitle><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle><date>2004-10-15</date><risdate>2004</risdate><volume>383</volume><issue>2</issue><spage>390</spage><epage>398</epage><pages>390-398</pages><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>The apparent rigidity of W–Cu (35
vol.%) powder compacts during sintering is characterised from the determination of axial viscosity by dilatometry under sequential loading. The study is carried out on composite powders containing submicron size phases, in the temperature range 1020–1100
°C in which a significant shrinkage is evidenced by conventional dilatometry. When the sintering bodies density increases from 0.5 to 0.74
d
th, the axial viscosity increases from 10
3 to 13 × 10
3
MPa
s in solid state and from 0.5 × 10
3 to 4 × 10
3
MPa
s when Cu is liquid. These rather low values do not indicate the formation of a rigid W particle network. From about 1060 to 1100
°C, the rapid shrinkage, the low axial viscosity and the significant microstructure change support a densification process by rearrangement by viscous flow.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.msea.2004.05.050</doi><tpages>9</tpages></addata></record> |
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| identifier | ISSN: 0921-5093 |
| ispartof | Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2004-10, Vol.383 (2), p.390-398 |
| issn | 0921-5093 1873-4936 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_35033040 |
| source | Elsevier |
| subjects | Apparent viscosity Applied sciences Densification Exact sciences and technology Metal powders Metals. Metallurgy Powder metallurgy. Composite materials Processes Production techniques W–Cu |
| title | Apparent viscosity of W–Cu powder compacts during sintering |
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