Phase instability in ZrO{sub 2}{endash}NiAl functionally graded materials
Journal Article
·
· Journal of Materials Research
- Department of Materials Science and Engineering, Ohio State University, Columbus, Ohio 43210 (United States)
Sedimentation in organic solvents was followed by hot-pressing to produce 2 mole{percent} yttria stabilized zirconia-NiAl functionally graded materials (FGM{close_quote}s). These FGM{close_quote}s were better able to accommodate high levels of residual stress than alumina-NiAl FGM{close_quote}s; this is possibly due to enhanced tetragonal phase retention. However, we found that the zirconia layer in these FGM{close_quote}s subsequently experiences room temperature transformation of t-ZrO{sub 2} to m-ZrO{sub 2}. {copyright} {ital 1997 Materials Research Society.}
- OSTI ID:
- 554342
- Journal Information:
- Journal of Materials Research, Vol. 12, Issue 10; Other Information: PBD: Oct 1997
- Country of Publication:
- United States
- Language:
- English
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