Influence of forming conditions on characteristics of alumina-PSZ composites

    Authors

    S. Motoc; E. Volceanov; R. Neagu; A. Apostol;A. Volceanov

    Comments

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    Abbreviated Journal Title

    Br. Ceram. Trans.

    Keywords

    Materials Science, Ceramics

    Abstract

    The purpose of the work reported in the present paper was to establish the correlation between the physical, mechanical, and microstructural properties of alumina matrix composites reinforced with (CeO2, Nd2O3, Y2O3)-PSZ (partially stabilised zirconia) depending on the processing and thermal treatment conditions. The composites obtained from fine powder mixtures were formed by hydraulic pressing, ceramic injection moulding, and hot pressing under various temperature and pressure conditions. The samples were fired at 1550-1770 degreesC in an oxidising atmosphere and in vacuum depending on the forming conditions. Comparative microstructure investigations were made by TEM on sample surfaces. The XRD results were in accordance with the determined properties of the investigated compositions. The results highlighted that the best physical and mechanical properties and homogenous microstructure for the ZTA composites were obtained by firing in vacuum. BCT/442.

    Journal Title

    British Ceramic Transactions

    Volume

    99

    Issue/Number

    6

    Publication Date

    1-1-2000

    Document Type

    Article

    Language

    English

    First Page

    280

    Last Page

    283

    WOS Identifier

    WOS:000166841100009

    ISSN

    0967-9782

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