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Deposition of Micro‐Porous Hydroxyapatite/Tri‐Calcium Phosphate Coating on Zirconia‐Based Substrate
Author(s) -
Sultana Rumana,
Yang Jingzhou,
Hu Xiaozhi
Publication year - 2012
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2012.05114.x
Subject(s) - materials science , porosity , cubic zirconia , coating , sintering , scaffold , composite material , substrate (aquarium) , deposition (geology) , ceramic , biomedical engineering , sediment , biology , geology , medicine , paleontology , oceanography
Scaffold‐like hydroxyapatite/tri‐calcium‐phosphate ( HA / TCP ) coatings have been deposited on strong zirconia‐substrates using a unique HA ‐slip coating‐deposition and coating‐substrate co‐sintering process. Bending strength of such layered composites is over 300 MPa, higher than the upper strength limit of natural bones. Thick scaffold‐like HA ‐coatings with open pores larger than 100 μm can be deposited onto the micro‐porous HA / TCP surface using the same technique. Such load‐bearing “ HA ‐scaffolds” with adequate bending strength and large open pore structures provide useful options as load‐bearing bone implants.