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Weibull modulus of nano-hardness and elastic modulus of hydroxyapatite coating.
- Source :
-
Journal of Materials Science . Sep2009, Vol. 44 Issue 18, p4911-4918. 8p. 3 Diagrams, 5 Graphs. - Publication Year :
- 2009
-
Abstract
- Here we report the microstructural dependence of nano-hardness ( H) and elastic modulus ( E) of microplasma sprayed (MIPS) 230 μm thick highly porous, heterogeneous hydroxyapatite (HAP) coating on SS316L. The nano-hardness and Young’s modulus data were measured on polished plan section (PS) of the coating by the nanoindentation technique with a Berkovich indenter. The characteristic values of nano-hardness and Young’s modulus were calculated through the application of Weibull statistics. Both nano-hardness and the Young’s modulus data showed an apparent indentation size effect. In addition, there was an increasing trend of Weibull moduli values for both the nano-hardness and the Young’s modulus data of the MIPS-HAP coating as the indentation load was enhanced from 10 to 1,000 mN. An attempt was made in the present work, to provide a qualitative model that can explain such behavior. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00222461
- Volume :
- 44
- Issue :
- 18
- Database :
- Academic Search Index
- Journal :
- Journal of Materials Science
- Publication Type :
- Academic Journal
- Accession number :
- 43567114
- Full Text :
- https://doi.org/10.1007/s10853-009-3750-y