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

Bo Yeon Kim | Zendy; Yoon Joo Lee | Zendy; DongGeun Shin | Zendy; Soo Ryong Kim | Zendy; Woo Teck Kwon | Zendy; YoungHee Kim | Zendy; Duck Kyun Choi | Zendy

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

Author(s) -

Bo Yeon Kim,

Yoon Joo Lee,

DongGeun Shin,

Soo Ryong Kim,

Woo Teck Kwon,

YoungHee Kim,

Duck Kyun Choi

Publication year - 2015

Publication title -

korean chemical engineering research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.168

H-Index - 9

eISSN - 2233-9558

pISSN - 0304-128X

DOI - 10.9713/kcer.2015.53.5.603

Subject(s) - molten salt , salt (chemistry) , particle size , materials science , crystal growth , particle (ecology) , crystal (programming language) , ionic bonding , ceramic , morphology (biology) , mineralogy , chemical engineering , ion , chemistry , metallurgy , crystallography , organic chemistry , geology , oceanography , engineering , computer science , programming language , paleontology

??? ??? ?? ? ??? ??? ??? ??? ??? ??? ?? ?? ????. ?? ??? ??, ??? ?? ?? ???? ?? ??? ??? ??? ??. ???(molten-salt)? ???? ??? ??? ???? ??, 800~900 oC ???? ???? salt? ??? ??? ??? ?? ?? ??? ??? ? ???, ?? ?? ??? ???? ??, ?? salt? ionic strength? ?? ???? ??? ?? ??? ???? ?? ????. ? NaCl, Na2SO4, Na3SO4? ???? ionic strength? ?? ??? salt ???? ???? ??? , ??? ???? ?? ??? ??? ??? ??, ?? ??? ?? ???? ?? ? ??? ??? ??? . 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, Na2SO4, Na3PO4 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 800~900 °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.? ??? ??(No. NRF 2010-0019468)? ??? ?? , ??? ???

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