Flexural characteristics of D-gun sprayed functionally graded alumina and alumina-zirconia ceramic composites coatings
by Sundaram Rajakumar, L. Vijayaraghavan, M.M. Mayuram, R. Krishnamurthy
International Journal of Materials Engineering Innovation (IJMATEI), Vol. 1, No. 3/4, 2010

Abstract: Detonation gun (D-gun) sprayed alumina and alumina-zirconia ceramic composite are evaluated as monolayered and functionally graded coatings (FGC). The coated specimens are subjected to three-point bending test to assess their flexural response. From the load deformation characteristic of the ceramic deposits, while alumina as a monolayer (ALM) exhibit high modulus of rupture (MOR). Alumina-zirconia FGC (AZG2) has better flexure properties. Structure property relationship and response of acoustic emission from flexure specimen supplement this observation.

Online publication date: Fri, 10-Sep-2010

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