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J. Korean Ceram. Soc. > Volume 52(2); 2015 > Article
Journal of the Korean Ceramic Society 2015;52(2): 128.
doi: https://doi.org/10.4191/kcers.2015.52.2.128
Structural, Optical, and Chemical Properties of Cadmium Phosphate Glasses
Jae-Yeop Chung, Jong-Hwan Kim, Su-Yeon Choi, Hyun-Joon Park, Moon-Kyung Hwang, Yoon-Ki Jeong, Bong-Ki Ryu
Department of Materials Science and Engineering, Pusan National University
ABSTRACT
In this study, we prepared cadmium phosphate glasses with various compositions, given by $xCdO-(100-x)P_2O_5$ (x = 10-55 mol%), and analyzed their Fourier transform infrared spectra, dissolution rate, thermal expansion coefficient, glass transition temperature, glass softening temperature, and optical band gap. We found that the thermal expansion coefficient and dissolution rate increased while the glass transition temperature and glass softening temperature decreased with increasing CdO content. These results suggest that CdO acts as a network modifier in binary phosphate glass and weakens its structure.
Key words: Fourier transform infrared spectroscopy, Optical band gap energy, Dissolution rate, Phosphate glass, Non-bridging oxygen, Network modifier
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