Paper Title:
Crystallization of Spherical Dielectric Oxide Particles in a Melting-Spheroidization Process Using Chemical Flame
  Abstract

BaNd2Ti4O12 dielectric oxide particles were spheroidized by melting them with a LPG-O2 flame to improve packing and fluidity of the powder. Changes in the particle morphology, structure and crystallinity during the process were investigated. It is revealed that most of the as-melted particles are dense, spherical and amorphous with smooth surfaces, which crystallize in the annealing process to form polycrystalline spherical particles with uneven surfaces. Annealing at above 1100°C is necessary for the spheroidized powder to recover its crystallinity and dielectric properties.

  Info
Periodical
Edited by
Masaru Miyayama, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki
Pages
223-226
DOI
10.4028/www.scientific.net/KEM.301.223
Citation
S. Che, T. Sogabe, N. Sakamoto, "Crystallization of Spherical Dielectric Oxide Particles in a Melting-Spheroidization Process Using Chemical Flame ", Key Engineering Materials, Vol. 301, pp. 223-226, 2006
Online since
January 2006
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$32.00
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