(HRTEM) . energy dispersive X-ray spectrometry(EDX)

정영준; 김영석; 이규호; 김태호; 진현주; 류봉기; Young-Jun JUNG; Young-Suk Kim; Gyu-HO Lee; Tae-Ho Kim; Hyeon-Ju Jin; Bong-Ki Ryu

Korean Journal of Materials Research, Vol.17, No.8, 414-419, August, 2007

DOI10.3740/MRSK.2007.17.8.414 Export Citation

(HRTEM) . energy dispersive X-ray spectrometry(EDX)

Relations between Composition, Temperature and Electrical Conductivity of (60-xSiO2-40Na2O-xCaO (x=0∼15wt%) Glass System

정영준, 김영석, 이규호, 김태호, 진현주, 류봉기^†

부산대학교 재료공학과

Young-Jun JUNG, Young-Suk Kim, Gyu-HO Lee, Tae-Ho Kim, Hyeon-Ju Jin, and Bong-Ki Ryu^†

Division of Materials Science and Engineering, Pusan National University, Busan 609-735, Korea

E-mail:

We report the electrical conductivity of the mixed alkali silicate glasses in the system (60-x) in the temperature range from to . In the range from to glass transition temperature, the electrical conductivities of glass samples had a tendency to be proportion with temperature. The glasses of containing over 7.5wt% CaO showed lower conductivities than the glasses of containing 0 and 5wt% CaO because two kinds of alkali ions were obstructed each other. On the other hand, in the range from to , the electrical conductivity of glasses() was unstable and decreased in some region. From XRD results, the phase were observed in these glasses. This means the alkali ions didn't behave as carrier, it seems that this caused the conductivities decrease. In case of glass of containing 15wt% CaO, any crystal phase were not observed. This means the alkali ions behaved as carrier, it consequently seems the conductivity increased.

Keywords:Sio2 - Na2O - CaO glass;Conductivity;Crystallization . High and/or Low Temperature Region;NarCa(SiO3)3;phase

[References]

Deshpande AV, Deshpande VK, Solid State Ion., 177(26-32), 2747 (2006)
Gedam RS, Deshpande VK, Solid State Ion., 177(26-32), 2589 (2006)
Cho KI, Lee SH, Shin DW, Sun YK, Electrochim. Acta, 52(4), 1576 (2006)
Minami T, Miraisangyoukijutsu, VoLIII, p.444, Kagakukijustukouhouzaidan, Japan, (1982) (1982)
Nasu H, Hirao K, Soga N, J. Am. Ceram. Soc., 64(4), C63 (1981)
Elalaily NA, Ph. D. Thesis, Dept. chemical Engineering, University, Faculty of Engineering, Cairo, Egypt (1991) (1991)
Kelly IF, Ccordaro TF, Tomazawa M, J. Non-Cryst. Solids, 41, 47 (1980)
Fang X, Ray CS, Marasinghe GK, Day DE, J. Non-Cryst. Solids, 263/264, 293 (2000)
Ghosh S, Ghosh A, Solid State Ion., 149(1-2), 67 (2002)
Kulkarni AR, Lunkenheimer P, Loidl A, Materials Chern. Phys, 63, 97 (2000)
Alizadeh P, Yousefi M, Yekta BE, Ghafoorian N, Molaie F, Ceramics International, 33, 767 (2007)
Chen GH, Liu XY, J. Alloys and Compounds, 431, 282 (2007)
Sakai T, Eguchi M, Takizawa K, J. Non-Cryst. Solids, 185, 159 (1995)
Schwartz M, Mackenzie JD, Rensselaer Polytechnic Institute, Troy, New York 12181
Verne E, Bona E, Bellosi A, Brovarone CV, Appendino P, J. Mater. Sci., 36(11), 2801 (2001)
Montoya BG, Torres-Martinez LM, Quintana P, Ibarra J, J. Non-Cryst. Solids, 329, 22 (2003)
Meikheil MS, Gohar AI, Megahed AA, J. Phys. D. Appl. Phys., 26, 1 (1993)
Kim DK, Kim CY, J. Kor. Ceram. Soc., 33(4), 385390 (1996)
Martin SW, J. Am. Ceram. Soc., 71(6), 438 (1988)
Ezz Eldin FM, El Alaily NA, Materials Chern. Phys., 52, 175 (1998)
Salman SN, EI-Batal HA, J. Non-Cryst. Solids, 168, 179 (1994)

[1] Deshpande AV, Deshpande VK, Solid State Ion., 177(26-32), 2747 (2006)

[2] Gedam RS, Deshpande VK, Solid State Ion., 177(26-32), 2589 (2006)

[3] Cho KI, Lee SH, Shin DW, Sun YK, Electrochim. Acta, 52(4), 1576 (2006)

[4] Minami T, Miraisangyoukijutsu, VoLIII, p.444, Kagakukijustukouhouzaidan, Japan, (1982) (1982)

[5] Nasu H, Hirao K, Soga N, J. Am. Ceram. Soc., 64(4), C63 (1981)

[6] Elalaily NA, Ph. D. Thesis, Dept. chemical Engineering, University, Faculty of Engineering, Cairo, Egypt (1991) (1991)

[7] Kelly IF, Ccordaro TF, Tomazawa M, J. Non-Cryst. Solids, 41, 47 (1980)

[8] Fang X, Ray CS, Marasinghe GK, Day DE, J. Non-Cryst. Solids, 263/264, 293 (2000)

[9] Ghosh S, Ghosh A, Solid State Ion., 149(1-2), 67 (2002)

[10] Kulkarni AR, Lunkenheimer P, Loidl A, Materials Chern. Phys, 63, 97 (2000)

[11] Alizadeh P, Yousefi M, Yekta BE, Ghafoorian N, Molaie F, Ceramics International, 33, 767 (2007)

[12] Chen GH, Liu XY, J. Alloys and Compounds, 431, 282 (2007)

[13] Sakai T, Eguchi M, Takizawa K, J. Non-Cryst. Solids, 185, 159 (1995)

[14] Schwartz M, Mackenzie JD, Rensselaer Polytechnic Institute, Troy, New York 12181

[15] Verne E, Bona E, Bellosi A, Brovarone CV, Appendino P, J. Mater. Sci., 36(11), 2801 (2001)

[16] Montoya BG, Torres-Martinez LM, Quintana P, Ibarra J, J. Non-Cryst. Solids, 329, 22 (2003)

[17] Meikheil MS, Gohar AI, Megahed AA, J. Phys. D. Appl. Phys., 26, 1 (1993)

[18] Kim DK, Kim CY, J. Kor. Ceram. Soc., 33(4), 385390 (1996)

[19] Martin SW, J. Am. Ceram. Soc., 71(6), 438 (1988)

[20] Ezz Eldin FM, El Alaily NA, Materials Chern. Phys., 52, 175 (1998)

[21] Salman SN, EI-Batal HA, J. Non-Cryst. Solids, 168, 179 (1994)