Strength of Zirconium Diboride to 2300°C
Abstract
The strength of zirconium diboride (ZrB2) ceramics was measured up to 2300°C, which are the first reported measurements above 1500°C since 1970. ZrB2 ceramics were prepared from commercially available powder by hot pressing. A mechanical testing apparatus capable of testing material in the ultra‐high temperature regime with atmosphere control was built, evaluated, and used. Four‐point bend strength was measured as a function of temperature up to 1600°C in air and between 1500°C and 2300°C in argon. Strength between room temperature and 1200°C was ~390 MPa, decreasing to a minimum of ~170 MPa between 1400°C and 1500°C, with strength increasing to ~220 MPa between 1600°C and 2300°C.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Dec 12, 2012
- Source ID
- 10.1111/jace.12114
Entities
People
- Eric W. Neuman
- Gregory E Hilmas
- William G. Fahrenholtz
Organizations
- Air Force Office of Scientific Research
- Missouri University of Science and Technology