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Preparation of (Pb, Ca)(Fe0.5Nb0.5)1-yTiyO3 Perovskite Ceramics by a Reaction-Sintering Process

Published online by Cambridge University Press:  01 February 2011

Yi-Cheng Liou
Affiliation:
Department of Electronic Engineering, Kun-Shan University of Technology, Tainan Hsien 710, Taiwan, R.O.C.
Jen-Hsien Chen
Affiliation:
Department of Electronic Engineering, Kun-Shan University of Technology, Tainan Hsien 710, Taiwan, R.O.C.
Hsueh-Yung Lu
Affiliation:
Department of Electronic Engineering, Kun-Shan University of Technology, Tainan Hsien 710, Taiwan, R.O.C.
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Abstract

Synthesis of (Pb0.45Ca0.55)(Fe0.5Nb0.5)1-yTiyO3 (y=0 and 0.1; PCFN and PCFNT) ceramics by a reaction-sintering process was investigated. The mixture of raw materials was pressed and sintered into ceramics without any calcination stage involved. The density 5.88g/cm3 (91.6% of the theoretical value) is reached at 1270°C for 2 h soak time in PCFN. Densification increased as B-site was substituted by 10% Ti and a density value 6.21g/cm3 (98.1% of theoretical value) was obtained after 2 h sintering at 1270°C. Grains are of 4.6–19.3μm in PCFN and 2.5–16.5μm in PCFNT at 1150–1270°C. Grain growth was retarded as the B-site was substituted by 10% Ti in PCFN ceramics.

Type
Research Article
Copyright
Copyright © Materials Research Society 2005

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Preparation of (Pb, Ca)(Fe0.5Nb0.5)1-yTiyO3 Perovskite Ceramics by a Reaction-Sintering Process
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