Thermal expansion coefficient controlled Cu-ZrW 2-x Mo x , O 8 cermet material prepared using spark plasma sintering

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Dense composites consisting of copper and ZrW 2 O 8 (ZrWMoO 8 ) 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-ZrW 2 O 8 and Cu-ZrWMoO 8 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-ZrW 2 O 8 composite showed a change in the slope of the thermal expansion curve that was due to a phase transition, whereas the Cu-ZrWMoO 8 composite showed no such change. The thermal conductivity of Cu-ZrW 2 O 8 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
EditorsPeter Mechnich, Dietmar Koch, Mihails Kusnezoff, Jerry LaSalvia, Jonathan Salem, Palani Balaya, Zhengyi Fu, Narottam Bansal, Tatsuki Ohji
PublisherAmerican Ceramic Society
Pages233-240
Number of pages8
Edition2
ISBN (Print)9781119040439
Publication statusPublished - 1 Jan 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
CountryUnited States
CityDaytona Beach
Period21/01/1826/01/18

Cite this

Wei, H., Oe, M., Inoue, R., Aimi, A., Fujimoto, K., & Nishio, K. (2019). Thermal expansion coefficient controlled Cu-ZrW 2-x Mo x , O 8 cermet material prepared using spark plasma sintering In P. Mechnich, D. Koch, M. Kusnezoff, J. LaSalvia, J. Salem, P. Balaya, Z. Fu, N. Bansal, & T. Ohji (Eds.), Ceramic Engineering and Science Proceedings (2 ed., pp. 233-240). (Ceramic Engineering and Science Proceedings; Vol. 39, No. 2). American Ceramic Society.