Plastic deformation of MgO(A12O2) spinel at 0·28TM preliminary results
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Abstract
Prism-shaped single crystals of MgO(Al2O3)n spinel (n < 1.1) have been compressed to significant plastic strain at a temperature of 400°C (∼0·28 TM) in controlled experiments under a superimposed hydrostatic pressure of 1·4 GPa. Compression of crystals approximately parallel to <001>, <111> and <011> resulted in simple yield behaviour at axial stress differences of 1940, 3720, and 4300 MPa respectively. Well defined and broadly distributed slip lines on polished surfaces and stress-optical effects of slip bands have permitted identification of the following operating slip families:
Typically, the members of the above slip families with the highest Schmid factors operated. Clear evidence for active cross-slip on the system {100}<110> was observed to nucleate from the {111}<110> slip bands in the ∼<011> specimen.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Plastic deformation of MgO(A12O2)1·1 spinel at 0·28TM preliminary results |
| Series title | Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties |
| DOI | 10.1080/01418618008241836 |
| Volume | 41 |
| Issue | 1 |
| Year Published | 1980 |
| Language | English |
| Publisher | Taylor and Francis |
| Contributing office(s) | Earthquake Science Center |
| Description | 8 p. |
| First page | 129 |
| Last page | 136 |
| Google Analytic Metrics | Metrics page |