Nanoindentation of a hard ceramic coating formed on a soft substrate

The hardness and Young’s modulus of the thin hydroxyapatite-based coatings deposited by RF magnetron sputtering onto magnesium alloy, titanium, and steel substrates are studied. As the penetration depth increases, the hardness and Young’s modulus of these coatings are found to tend toward the values...

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Bibliographic Details
Published inTechnical physics Vol. 61; no. 9; pp. 1370 - 1376
Main Authors Surmeneva, M. A., Surmenev, R. A., Tyurin, A. I., Pirozhkova, T. S., Shuvarin, I. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.09.2016
Springer
Springer Nature B.V
Subjects
Ceramics
Classical and Continuum Physics
Coatings
Hardness (Materials)
Hydroxyapatites
Magnesium alloys
Mechanical properties
Nanoindentation
Physical Science of Materials
Physics
Physics and Astronomy
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Summary:The hardness and Young’s modulus of the thin hydroxyapatite-based coatings deposited by RF magnetron sputtering onto magnesium alloy, titanium, and steel substrates are studied. As the penetration depth increases, the hardness and Young’s modulus of these coatings are found to tend toward the values that are characteristic of the substrates. It is shown that the difference between the values of hardness and Young’s modulus at small penetration depths ( h < 80–100 nm) can be caused by the difference between the physicomechanical properties inside the coatings and that this difference at large penetration depths ( h > 100 nm) can be induced by an additional effect of the strength properties of the substrate material.
ISSN:1063-7842
1090-6525
DOI:10.1134/S1063784216090279