Similarities Analysis on Hydroxyapatite-Zirconia Composites
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ABSTRACT:
Hydroxyapatite (Ca10(PO4)6(OH)2) is one of the implants materials with medical applications due to its higher biocompatibility. The hydroxyapatite found complete utilization after proper preparation of composite. The influence of zirconia (ZrO2) on the phase composition and on mechanical properties of hydroxyapatite-zirconia composites has been previous investigated and reported. Hierarchical cluster analysis methods were applied in order to assess the similarities of four different types of hydroxyapatite-zirconia composites. Four classes of composites (hydroxyapatite, hydroxyapatite coarse-grained zirconia, hydroxyapatite fine-grained zirconia, and hydroxyapatite needle-grained zirconia) cumulating a total number of sixteen experiments were analyzed. A number of nine quantitative variables were included into analysis: sintering temperature, Vickers hardness, bending strength, characteristic strength, Weibull modulus, anisotropy, Young’s modulus, rigidity modulus, and Poisson ratio. Data were analyzed using SPSS software by applying cluster analysis techniques. The analysis revealed interesting information regarding similarities between studied hydroxyapatite-zirconia composites.
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STATISTICS
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