Sintering of CuO compacts has been studied and the basic mechanical properties of polycrystalline CuO have been determined. Specimens of 90% density can be fabricated by sintering CuO powder at 1010°C for ~24hr. From data for 85-90%-dense specimens, the following elastic properties have been calculated for 100%-dense specimens: E = 125 ± 5 GPa, G = 47 ± 2 GPa, v = 0.31. The fracture toughness of 85-90% dense specimens was 5.0±0.6 MPaVm; the strengths of the densest specimens were related to grain size. The thermal-expansion coefficient from 300 to 1073 K was 1.15 × 10-5°C-1.
|Number of pages||6|
|Journal||High Temperature Materials and Processes|
|State||Published - Jan 1990|
Bibliographical noteFunding Information:
This work was supported by the Unites States Department of Energy, Office of Energy Storage and Distribution, Conservation and Renewable Energy, under contract number W-31-109-Eng-38. The experimental assistance of the 1988 Argonne Chemistry of Materials Class, and helpful discussions with S.E. Dorris and C.Y. Chu, are appreciated.
ASJC Scopus subject areas
- Materials Science (all)
- Condensed Matter Physics
- Mechanics of Materials
- Physical and Theoretical Chemistry