Water-based gelcasting of lead zirconate titanate and evaluation of mechanical properties of the gelcast samples

descriptionPublicationkeyboard_double_arrow_right Article 01 Nov 2007 English Publisher:Elsevier BVJournal:Scripta Materialia, volume 57, pages 817-820 (issn: 1359-6462,

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Authors: Subir Roy; B.S.S. Chandra Rao; J. Subrahmanyam;

doi: 10.1016/j.scriptamat.2007.07.003

Water-based gelcasting of lead zirconate titanate and evaluation of mechanical properties of the gelcast samples

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Abstract

Gelcast and sintered bodies obtained from ovalbumin-based slurry with 45% solid loading were crack free and showed density comparable to the cold isostatically pressed (CIP) and sintered lead zirconate titanate samples. The values of average hardness, modulus of elasticity and fracture toughness of a 1200 °C sintered gelcast sample obtained by microindentation are 5.9 GPa, 137.0 GPa and 0.96 MPa m1/2, respectively. The mechanical properties of the gelcast and sintered sample were comparable to that of the CIP-sintered sample.

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