MgO-Na2O-P2O5-based sintering additives for tricalcium phosphate bioceramics

    Authors

    S. J. Kalita; H. A. Bhatt;A. Dhamne

    Comments

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    Abbreviated Journal Title

    J. Am. Ceram. Soc.

    Keywords

    GLASS-REINFORCED HYDROXYAPATITE; CALCIUM-PHOSPHATE; CERAMICS; TEMPERATURE; APATITE; BONE; TRANSFORMATION; SOLUBILITY; STRENGTH; POWDERS; Materials Science, Ceramics

    Abstract

    Effects of MgO-Na2O-P2O5-based sintering additives on densification, microstructure, hardness, compression strength, and biodegradability of beta-tricalcium phosphate (beta-TCP) ceramics were studied. Three additive compositions were prepared and introduced into beta-TCP. Uniaxially compacted ceramic structures, sintered at 1250 degrees C in air, were characterized. Scanning electron microscopy was used to stud), the microstructure. The X-ray diffraction technique was used for phase analysis. Results showed that these additives modified the microstructure and improved the sintered density and mechanical properties. An increase of 9% in density, 40% in hardness and 38% in compression strength were achieved. Biodegradation analysis revealed that these additives could tailor the rate of resorption and hardness degradation of beta-TCP.

    Journal Title

    Journal of the American Ceramic Society

    Volume

    89

    Issue/Number

    3

    Publication Date

    1-1-2006

    Document Type

    Article

    Language

    English

    First Page

    875

    Last Page

    881

    WOS Identifier

    WOS:000236606700016

    ISSN

    0002-7820

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