C. C. Sorrell

TL;DR: Mechanisms underlying temperature-strength interrelations for dense (> 95% dense, pores closed) hydroxyapatite (HAp) were investigated by comparative assessment of temperature effects on tensile strength, Weibull modulus, apparent density, decomposition, dehydroxylation and microstructure.

TL;DR: In this paper, the authors used the use of aged nanoparticulate hydroxyapatite sols (lower sintering temperature) and a dual coating strategy that overcomes the cracking problem.

TL;DR: Dual coatings resolved the cracking problem and the interfacial shear strength of the dual coatings was found to be ∼12 MPa on a titanium substrate and ∼22 MPA on 316L stainless steel, comparing quite favorably with the 34 MPa benchmark.

TL;DR: Electrophoretic deposition is a low-cost, simple, and flexible coating method for producing hydroxyapatite (Hap) coatings on metal implants, but densification requires heating the coated metal to high temperatures, which, for commercial HAp powders, generally means at least 1200 degrees C.

TL;DR: The results suggested that the less equiaxed the nano-particles, the more cracked the coatings obtained by the electrophoretic deposition technique.