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Abstract
On investigating the possibility of using alumina whisker reinforced 3mol% Yttria stabilized Tetragonal Zirconia (TZ-3Y) composite for bioceramic applications, presented here is the influence of varying whisker concentration (2, 5, 10, 15 and 20wt%) on flexural strength of the composite. Whiskers of hydrothermally synthesized Ammonium Aluminum Carbonate Hydroxide (AACH) were used for composite synthesis. These whiskers transformed in situ into alumina during sintering. It was found that with addition of alumina whiskers, strength was increased and reached a maximum value of 1212±60MPa and 1325±65MPa, in pure and 1wt% CTAB added samples respectively, at a concentration of 10wt% Al2O3 whiskers. The strength values of the synthesized composite can compete well with commercially available materials for dental applications.
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