Thermal expansion coefficient controlled Cu-ZrW2-xMox, O8 cermet material prepared using spark plasma sintering

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Dense composites consisting of copper and ZrW2O8 (ZrWMoO8) with negative thermal expansion (NTE) properties were fabricated at low temperature by using spark plasma sintering (SPS). X-ray diffraction (XRD) analyses suggested that the Cu-ZrW2O8 and Cu-ZrWMoO8 composites were thermally stable at 773 K and 673 K. The coefficient of thermal expansion (CTE), as measured by a thermodynamic analyzer, could be varied from negative to positive by increasing the volume fraction of copper. The Cu-ZrW2O8 composite showed a change in the slope of the thermal expansion curve that was due to a phase transition, whereas the Cu-ZrWMoO8 composite showed no such change. The thermal conductivity of Cu-ZrW2O8 increased with the copper content, varying from 157 [W/mK] (Cu: 50 vol%) to 300 [W/mK] (Cu: 100 vol%).

Original languageEnglish
Title of host publicationCeramic Engineering and Science Proceedings
EditorsMihails Kusnezoff, Zhengyi Fu, Dietmar Koch, Tatsuki Ohji, Peter Mechnich, Palani Balaya, Narottam Bansal, Jerry LaSalvia, Jonathan Salem
PublisherAmerican Ceramic Society
Pages233-240
Number of pages8
Edition2
ISBN (Electronic)9781119519645, 9781119543268, 9781119543305
Publication statusPublished - 2019
Event42nd International Conference on Advanced Ceramics and Composites, ICACC 2018 - Daytona Beach, United States
Duration: 21 Jan 201826 Jan 2018

Publication series

NameCeramic Engineering and Science Proceedings
Number2
Volume39
ISSN (Print)0196-6219

Conference

Conference42nd International Conference on Advanced Ceramics and Composites, ICACC 2018
Country/TerritoryUnited States
CityDaytona Beach
Period21/01/1826/01/18

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