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http://dx.doi.org/10.4191/KCERS.2004.41.3.253

Synthesis of Alumina Nano Particles by PAA Gel Method from Kaolin  

김지경 (부산대학교 재료공학부)
이상근 (부산대학교 재료공학)
신준식 (부경대학교 화학공학)
홍성수 (부경대학교 화학공학)
박성수 (부경대학교 화학공학)
박희찬 (부산대학교 재료공학부)
Publication Information
Abstract
Non-aggregated nanoscale $\alpha$-Al$_2$O$_3$ powders were prepared successfully by polyacrylamine (PAA) gel method. The method was very simple and polymer network inhibited the aggregate of $\alpha$-Al$_2$O$_3$ powders. In this investigation, nanoparticles of $\alpha$-Al$_2$O$_3$ with a diameter of about 8-15 nm were fabricated by calcining the gel precusors with various concentrations of aluminum sulfate, acrylamide and N,N'-methylene-bis-acrylamide (BIS) in air at 110$0^{\circ}C$ for 2 h. The molar ratio of aluminum sulfate to acrylamide did not have any influence on the size of particles. On the other hand, as the molar ratio of BIS to acrylamide increased, the size of nanoparticles decreased.
Keywords
Nano; Powder; Polyacrylamide; Gel; $a\lpha$-$Al_2$$O_3$;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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