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http://dx.doi.org/10.9713/kcer.2015.53.5.603

Effect of Salt on Crystal Growth of Plate-like Alumina Particles by Molten-salt Method  

Kim, Bo Yeon (Energy Efficient Material Team, Korea Institute of Ceramic Engineering and Technology)
Lee, Yoon Joo (Energy Efficient Material Team, Korea Institute of Ceramic Engineering and Technology)
Shin, Dong-geun (Energy Efficient Material Team, Korea Institute of Ceramic Engineering and Technology)
Kim, Soo Ryong (Energy Efficient Material Team, Korea Institute of Ceramic Engineering and Technology)
Kwon, Woo Teck (Energy Efficient Material Team, Korea Institute of Ceramic Engineering and Technology)
Kim, Younghee (Energy Efficient Material Team, Korea Institute of Ceramic Engineering and Technology)
Choi, Duck Kyun (Division of Materials Science and Engineering, Hanyang University)
Publication Information
Korean Chemical Engineering Research / v.53, no.5, 2015 , pp. 603-608 More about this Journal
Abstract
Alumina powder have been expanded its application in industry and required to control its morphology such as powder size and aspect ratio of single particle. It can be synthesized by molten - salt method which is possible to obtain various shapes of ceramic particles by controlling the growth direction because each crystal face has different growth rate. In this study, various combinations of salts such as NaCl, $Na_2SO_4$, $Na_3PO_4$ and their mixture were used for control the growth of plate like alumina particle from the initial stage of synthesis because salt having different ionic strength can control the growth direction of ceramic particle under its melting condition around $800{\sim}900^{\circ}C$, and growth behavior of plate-like alumina particle with different reaction conditions such as temperature and concentration on the crystal size and shape was studied.
Keywords
Alumina; Molten-salt Method; Crystal Growth; Plate-like Particle;
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Times Cited By KSCI : 2  (Citation Analysis)
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