Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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A Study of Sintering Behavior and Crystallization in Li2O-Al2O3-SiO2 (LAS) Glass System by RSM

RSM 법에 의한Li2O-Al2O3-SiO2 (LAS) 유리의 소결 거동과 결정화에 대한 연구

  • Lee, Kyu-Ho (Division of Materials Science and Engineering, Pusan National University) ;
  • Kim, Young-Seok (Division of Materials Science and Engineering, Pusan National University) ;
  • Jung, Young-Joon (Division of Materials Science and Engineering, Pusan National University) ;
  • Kim, Tae-Ho (Division of Materials Science and Engineering, Pusan National University) ;
  • Seo, Jin-Ho (KOPEC Co. Ltd.) ;
  • Ryu, Bong-Ki (Division of Materials Science and Engineering, Pusan National University)
  • Published : 2007.08.31
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Abstract

This paper presents results and observations obtained from a study of sintering behavior and crystallization in $Li_2O-Al_2O_3-SiO_2$ (LAS) Glass by screen printing method. The variable experimental conditions were determined carefully by Thermal-Mechanical Analyzer (TMA), Differential Thermal Analyzer (DTA) for setting the optimum transparent sintering conditions in LAS glass system, $10.5Li_2O-14.7Al_2O_3-58.1SiO_2-16.7B_2O_3(wt%)$, such as glass-ceramics which usually have low crystallization temperatures. Crystallization glasses generated during sintering was observed from diffraction patterns by X-Ray Diffraction (XRD), transmittance by UV-Vis spectrometer. Finally, the optimum sintering condition of LAS glass and the relation between factors and results in several sintering conditions were given by using Response Surface Methodology (RSM). From this study, we confirmed that crystallization interrupted densification during glass powder sintering. Furthermore, we observed that main effect of factors in glass powder sintering with concurrent crystallization depended on experimental conditions from main effects plot by MINTAB-14.

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References

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