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Author: search.filters.author.Comyn, T.Subject: search.filters.subject.Lead zirconate titanate

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    Item type:Publication,
    Mechanical property evaluation of PZT/Al2O3 composites prepared by a simple solid-state mixed oxide method
    (2006-06-01)
    Puchmark, C.
    ;
    Rujijanagul, G.
    ;
    Jiansirisomboon, S.
    ;
    Tunkasiri, T.
    ;
    Vittayakorn, N.
    Ferroelectric lead zirconate titanate (PZT) based composites containing nanoparticles of Al<inf>2</inf>O<inf>3</inf> were prepared by a simple solid-state mixed oxide method. The sintering procedure was carried out at 1200 °C for 2 h with a heating/cooling rate of 5 °C/min. Phase formation and microstructure were examined by XRD and SEM, respectively. The effects of the Al<inf>2</inf>O<inf>3</inf> additive on hardness were investigated. Hardness was determined using a Vickers indentation technique and evaluated as a function of Al<inf>2</inf>O<inf>3</inf> volume fraction between 0% and 2%. The hardness of the composites tended to improve with the addition of the nanoparticles. The maximum hardness was obtained at PZT/1 vol.% Al<inf>2</inf>O<inf>3</inf>. The hardness results are related to the microstructure and compared with previous results reported by others. © 2005 Elsevier B.V. All rights reserved.