Paper Title:
Microwave Sintering BaTiO3 Ceramics Using Liquid Phase Sintering
  Abstract

Microwave sintering is a process in which target materials absorb microwaves and heat themselves from the inside. When microwave energy is effectively absorbed by the material, energy consumption for the sintering can be reduced. Our study is focused on the microwave sintering of BaTiO3 to more rapidly obtain dense ceramics with specific characteristics. For BaTiO3-based electronic components, the sintering temperature is too high for manufacture, so various additives are used to decrease the sintering temperature without undue worsening of the electrical characteristics. In this work, during microwave sintering, BaCO3, H3BO3, BaB2O4 and LiF were added to form a liquid. The effects of the amount of liquid phase on density and dielectric properties were investigated. BaTiO3 sintered with BaCO3 and H3BO3 showed dielectric properties, whereas BaTiO3 sintered with BaB2O4 had semiconducting properties with PTCR characteristics. Also, LiF-added BaTiO3 indicated a dielectric constant in which the peak shifts to lower temperatures with higher LiF concentrations.

  Info
Periodical
Key Engineering Materials (Volumes 317-318)
Edited by
T. Ohji, T. Sekino and K. Niihara
Pages
131-134
DOI
10.4028/www.scientific.net/KEM.317-318.131
Citation
Y. Nishimura, M. Yasuoka, T. Nagaoka, Y. Kinemuchi, K. Watari, "Microwave Sintering BaTiO3 Ceramics Using Liquid Phase Sintering", Key Engineering Materials, Vols. 317-318, pp. 131-134, 2006
Online since
August 2006
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Price
$32.00
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