K P Sreekumar
Articles written in Bulletin of Materials Science
Volume 14 Issue 4 August 1991 pp 1141-1144 International Conference On Superconductivity—III
Studies on the propagation of AC magnetic field through plasma-sprayed superconducting Y1Ba2Cu3O7−
Volume 19 Issue 1 February 1996 pp 115-121
This paper describes the method of producing plasma sprayed coatings of hydroxy apatite (HA) on metallic substrates of Ti-6Al-4V. Hydroxy apatite is a material which has similar composition to that of the mineral phase of the human bone. Poor mechanical properties however inhibits its use in the load bearing applications. The powders prepared in our laboratory are sprayed using a plasma spray torch operating in ambient. The deposited coatings are charaterized by X-ray diffraction and found to retain HA in the coatings as per requirements.
Volume 19 Issue 3 June 1996 pp 559-564
Commercially available aluminium powder has been processed in a thermal plasma jet. The processed powder has been characterized by scanning electron microscopy (SEM) for particle size and morphology. Particle size distribution has been determined by laser scattering technique. Results show that, in contrast to the irregular shapes of the particles of the raw material, majority of the processed powder particles bear spherical or near-spherical morphology. The spherical morphology without sharp edges and corners and particle size distribution in a narrow range ensures free flow of the powder through the powder feed lines, and better spray efficiency, making it ideal for thermal spray applications.
Volume 42 | Issue 6
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