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http://dx.doi.org/10.4191/KCERS.2011.48.3.228

Lightweight Characteristics and Sintering behavior of Porcelain by Addition FAHM(Fly-Ash Hollow Microsphere)  

Kim, Geun-Hee (Whiteware Ceramric Center, KICET)
Pee, Jae-Hwan (Whiteware Ceramric Center, KICET)
Kim, Jong-Young (Whiteware Ceramric Center, KICET)
Cho, Woo-Seok (Whiteware Ceramric Center, KICET)
Kim, Kyeong-Ja (Whiteware Ceramric Center, KICET)
Publication Information
Journal of the Korean Ceramic Society / v.48, no.3, 2011 , pp. 228-235 More about this Journal
Abstract
Sintering behavior and lightweight characteristics of porcelain by addition of FAHM (Fly-Ash Hollow Microsphere) were evaluated. Green body of Backja composition (general porcelain) in which FAHM was added(15 and 20 wt%) was made by slip casting method. The green body was sintered at 1270 and $1290^{\circ}C$ and maintained for 1h. The bulk density and linear shrinkage of the sintered body with FAHM (20 wt%) decreased. As the contents of FAHM. increased, mullite and cristobalite phases increased. In the microstructure, FAHM shells remained after sintering, and the generation of mullite fibers around FAHM shells also were confirmed. the weight of porcelain with of 20% FAHM decreased by 40% and residual FAHM shells promoted the mullite of generation in the matrix.
Keywords
Fly-ash; Ligthweight; Porous; Crystalline phase; Mullite;
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