Li 2 O-Al 2 O 3 -SiO 2 (LAS)계 결정화유리에서 결정크기와 표면조도 관계

김유진; 황성진; 김형순; Yu Jin Kim; Seong Jin Hwang; Hyung Sun Kim

Korean Journal of Materials Research, Vol.14, No.7, 505-510, July, 2004

DOI10.3740/MRSK.2004.14.7.505 Export Citation

Li 2 O-Al 2 O 3 -SiO 2 (LAS)계 결정화유리에서 결정크기와 표면조도 관계

Relationship between Surface Roughness and Crystal size of Li 2 O-Al 2 O 3 -SiO 2 (LAS) Glass-Ceramic System

김유진, 황성진, 김형순^†

순천대학교 재료.금속공학과

Yu Jin Kim, Seong Jin Hwang, and Hyung Sun Kim^†

Department of Materials Science and Metallurgical Engineering, Sunchon National University, Sunchon, 540-742, Korea

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The glass-ceramic based on LAS( Li 2 O?Al 2 O 3 ?SiO 2 ) system was observed using SEM(Scanning Electric Microscopy) and AFM(Atomic Force Microscopy) and it was expected to get a correlation between the crystal size and the surface roughness through the result. At heat treatment conditions (the nucleation: 740\~800 ? C , the crystal growth: 900\~1150 ? C ), the crystal size was increased from 72 to 450 nm so that the mean of surface roughness was also risen from 0.8 to 6.3 nm. Based on the results, the surface roughness of glass-ceramic is controlled by the factors, crystal size, crystallines, and the condition of heat treatment.

Keywords:Atomic force microscopy(AFM);Surface roughness;Glass-Ceramics

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[1] Park YW, Kim YW, J. Kor. Ceram. Soc., 29(3), 223 (1992)

[2] Shelby JE, Introduction to glass science and technology, The Royal Society of Chemistry, UK, (1997) (1997)

[3] Holand W, Beall G, Glass-Ceramic Technology, The American Ceramic Society, USA, (2002) (2002)

[4] Beall GH, Duke DA, J. Mat. Sci., 4, 340 (1969)

[5] Guedes M, Ferro AC, Ferreira JMF, J. Euro. Ceram. Soc., 21, 1187 (2001)

[6] Riello P, Canton P, Comelato N, Polizzi S, Verita M, Fagherazzi G, Hofmeister H, Hopfe S, J. Non-Cryst. Solids, 288, 127 (2001)

[7] Karmakar B, Kundu P, Jana S, Dwivedi N, J. Am. Ceram. Soc., 85(10), 2572 (2002)

[8] Luo XP, Silikas N, Allaf M, Wilson NFK, Watts DC, Surf. Sci., 491, 388 (2001)

[9] Radlein E, Frishat GH, J. Non-Cryst. Solids, 22, 69 (1997)

[10] Karthikeyan A, Almeida RM, J. Non-Cryst. Solids, 274, 169 (2000)

[11] Kim KD, Lee SH, Ahn HK, J. Non-Cryst. Solids, 336, 195 (2004)