Bimodal distribution of mechanical properties on plasma sprayed nanostructured partially stabilized zirconia
Lima, R. S., Kucuk, A., and Berndt, C. C. (2002) Bimodal distribution of mechanical properties on plasma sprayed nanostructured partially stabilized zirconia. Materials Science and Engineering A: Structural Materials: Properties Microstructure and Processing, 327 (2). pp. 117-256.
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Abstract
The mechanical behavior of nanostructured partially stabilized zirconia (PSZ) coatings was evaluated via Knoop microhardness. The distribution of the microhardness values of the feedstock particles and coatings under a 10 g load were analyzed via Weibull statistics. The percentage of non-molten material was determined using scanning electron microcopy and image analysis. It was observed that the nanostructured coatings present a bimodal distribution in their Weibull plots, indicating the presence of two phases which are described as molten and non-molten. The presence of the bimodal distribution in the mechanical properties allows the prediction of microhardness values of these nanostructured coatings.
| Item ID: | 439 |
|---|---|
| Item Type: | Article (UNSPECIFIED) |
| ISSN: | 1873-4936 |
| Keywords: | Thermal spray, Zirconia-yttria, Nanostructure, Thermal barrier coatings, Mechanical properties, Bimodal distribution |
| Additional Information: | © 2002 Elsevier. : This journal is available online - use hypertext links above. |
| Date Deposited: | 22 Sep 2006 |
| FoR Codes: | 09 ENGINEERING > 0912 Materials Engineering > 091201 Ceramics @ 0% |
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