Journal
COATINGS
Volume 8, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/coatings8080258
Keywords
hydroxyapatite coating; atmospheric plasma spraying; preferred orientation; columnar grain
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Funding
- National Natural Science Foundation of China [51471010]
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Hydroxyapatite (HA) coatings with strong (002) preferred orientation were successfully prepared on Ti-6Al-4V substrates with conventional atmospheric plasma spraying (APS). The intensity changes of (002) preferred orientation along the coating depth were investigated and the mechanical properties of these coatings were analyzed. Results indicated that the intensity of (002) preferred orientation at a distance of longer than similar to 90 mm from the interface showed a high value, where uniformly distributed columnar grains in a direction perpendicular to the coating surface were observed. The results obtained from experiments on the mechanical properties revealed that the (002) oriented coatings prepared by conventional APS technique exhibited excellent mechanical properties. Meanwhile, this study provided a simple and rapid method for the preparation of HA coatings with (002) preferred orientation.
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