Multifunctional bioceramic composite coatings deposited by cold spray

Kiran G. Judd, Mala M. Sharma, Timothy J. Eden

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations


Bioactive coatings have predominately been explored through plasma spray; but this technique has associated heat and melting of the feedstock materials thereby degrading the novel bioactive properties of hydroxyapatite (HA), as well as deteriorating the adhesion of the coating to the implant. The current study discusses a novel approach to producing biocompatible coatings that have been deposited at temperatures well below their melting point. The cold spray process was used to deposit 100 wt.% titanium (Ti) and composite powders with 80 wt% titanium (Ti) and 20 wt% hydroxyapatite (HA) onto Al6061, 316SS and Ti-6Al-4V substrates with the aim of achieving well-bonded homogeneous coatings; the effect of process parameters and substrate material was investigated. Preliminary results indicate the phase composition of the HA remained the same before and after synthesis of coating. Dense composite coatings were obtained with thicker coatings yielding the least amount of total porosity.

Original languageEnglish (US)
Title of host publicationSurface Modification Technologies
EditorsAntonello Astarita, Antonino Squillace, T.S. Sudarshan, Pierpaolo Carlone
PublisherTrans Tech Publications Ltd
Number of pages6
ISBN (Print)9783035715255
StatePublished - 2019
Event33rd Surface Modification Technologies Conference, SMT 2019 - Naples, Italy
Duration: Jun 26 2019Jun 28 2019

Publication series

NameKey Engineering Materials
Volume813 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795


Conference33rd Surface Modification Technologies Conference, SMT 2019

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering


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