Fabrication and Properties of PLZT Ceramic Fiber/Epoxy 1-3 Composites

Abstract

Abstract: Using lead acetate, lanthanum acetate, zirconium oxide acetate and titanium butoxide as precursors, lanthanum doped lead zirconate titanate gel fibers were fabricated by the sol-gel method. After being
prolyzed and sintered, The PLZT ceramic fibers with a diameter of 25μm were obtained. The morphology and cross-section of the fibers were studied by SEM. The micrographs show that, these
ceramic fibers are dense and uniform. The density of the fibers is 7.78×10³kg/m³, which was measured by Archimedes method. For a PLZT fiber/epoxy 1-3 composite disk with a diameter
of 4.4mm, a thickness of 43μm and ceramic volume fraction of 0.7, its piezoelectric coefficient d₃₃ and electromechanic coefficient k_t are 410pC/N and 0.631, respectively.

Key words: ceramic fiber, 1-3 composites, sol-gel, PLZT

CLC Number:

TB332

LI Kun,LI Jin-Hua,LI Jin-Chun,Helen Lai Wah Chan. Fabrication and Properties of PLZT Ceramic Fiber/Epoxy 1-3 Composites[J]. Journal of Inorganic Materials.

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Fabrication and Properties of PLZT Ceramic Fiber/Epoxy 1-3 Composites

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