Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Study on High- Strength Body of Chulwha Buncheong Ware from Geryong Mountain with the Addition of Purified Sludge

정수 슬러지를 혼합한 계룡산 철화 분청사기 고강도 소지 개발

  • Lim, Seong-Ho (Department of Materials Science & Engineering, Myongji University) ;
  • Lee, Byung-Ha (Department of Materials Science & Engineering, Myongji University)
  • 임성호 (명지대학교 공과대학 신소재공학과) ;
  • 이병하 (명지대학교 공과대학 신소재공학과)
  • Received : 2013.05.26
  • Accepted : 2013.06.13
  • Published : 2013.06.27
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Abstract

First, a purified sludge was calcined at various temperatures viz. 800, 900, 1000, 1100 and $1200^{\circ}C$ per hour. Subsequently 100 wt% of ware from Geryong mountain was mixed with 5~25 wt% of a purified sludge. Then the ware was treated at $1250^{\circ}C$ in an electric kiln to test a bending strength. The physicochemical property of the prepared ware was characterized by XRD, Raman and SEM analysis. Among the different percentage, 25 wt% of a ware in a purified sludge calcined at $1000^{\circ}C$ showed 689 $kg/cm^2$ strength. Also the purified sludge calcined at $1000^{\circ}C$ was adequate physical properties than the other composites. Further to enhance the physical strength, 3 wt% $TiO_2$ (a mineralizer) was added into the ware and the strength was increased up to 731 $kg/cm^2$. The composites exhibit absorption and porosity rates of 0.17% and 0.39% respectively.

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References

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