Effect of CeO2 Content on Properties of SiO2-B2O3-ZnO-K2O-BaO System Enameled Glass Base Materials
ZHANG Xiangui1, LIU Xiaopan1, GAO Pengzhao1, LIAO Mingya2, ZHOU Renchen1
1 College of Materials Science and Engineering, Hunan University, Changsha 410082, China 2 State Key Laboratory of Key Materials and Processes for New Electronic Components, Zhaoqing 526000, China
Abstract: The base materials of SiO2-B2O3-ZnO-K2O-BaO enameled glass were prepared by melting method. The effects of CeO2 addition on the phase composition, microstructure, thermal expansion coefficient, characteristic temperature and wettability with soda lime glass were investigated by XRD, SEM, comprehensive thermal analysis and high temperature wetting angle measurement. It was found that when the addition amount of CeO2 was higher than 3wt%, there would be precipitation of CeO2 crystal in the samples after tempering at 700 ℃. With the increase of CeO2 content in the glass matrix, the acid resistance, wettability with soda lime glass and bending strength of the sample increased first and then decreased. When the addition amount of CeO2 was 1wt%, the wettability between the sample and the soda lime glass was the best, and its wettability angle reached the minimum value of 45.6°. When the addition amount of CeO2 was 3wt%, the weight loss rate of the sample in the 5wt% dilute sulfuric acid solution reached the minimum value of 2.83 mg/cm2, and the acid resistance of the glass was the best. When the addition amount of CeO2 was 4wt%, the sample had the best bending resistance, and its strength was 75.69 MPa. The results show that the base material with 2wt% CeO2 has good comprehensive performance and good application prospect.
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2020, Vol. 34 
