Abstract
Isothermal tensile creep tests were performed on δ-Bi2O3 in the stress range of 0.1-0.8 MPa. A stress exponent of n = 1.3 was measured at 760°C in the stress range of 0.1-0.8 MPa or n = 1.0 in the range of 0.1-0.5 MPa. An average activation energy of Q = 165 kJ/mol was determined in the range of 680-760°C for a stress of 0.30 MPa. Creep rates before and after multiple thermal cycles about the allotropic range under stress were altered only slightly.
Original language | English (US) |
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Pages (from-to) | 1033-1038 |
Number of pages | 6 |
Journal | Scripta Materialia |
Volume | 43 |
Issue number | 11 |
DOIs | |
State | Published - Nov 13 2000 |
Funding
This research was sponsored by the Army Research Office (Contract Number DAAH004-95-1-0629).
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys