Effect of ZnO Doping on the Microstructure and Properties of CaO-B2O3-SiO2 Glass-ceramics
WANG Zhiyong1, XIA Qi1, LI Bo1,2,3
1 School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China 2 State Key Laboratory of Electronic Thin Films and Integrated Devices, Chengdu 610054, China 3 National Engineering Research Center of Electromagnetic Radiation Control Materials, Chengdu 610054, China
Abstract: The effect of ZnO doping on the crystal phase, microstructure and properties of calcium-borosilicate glass-ceramics (CBS) were studied. The Rietveld refinement method was used to calculate the crystallinity and crystal phase content. The analysis results showed that ZnO doping improved the crystallization of CBS system and promoted the formation of quartz and wollastonite. Moreover, ZnO significantly promoted the sintering densification and the mechanical properties of CBS glass-ceramics. When ZnO doping amount was 8wt%, the bending strength and Young's modulus were 207.9 MPa and 82.9 GPa, the dielectric constant was 5.75, the dielectric loss was 7.1×10-4, and the thermal expansion coefficient was 9.62×10-6/℃.
王志勇, 夏奇, 李波. ZnO掺杂对钙硼硅系玻璃陶瓷微观结构与性能的影响[J]. 材料导报, 2021, 35(12): 12049-12052.
WANG Zhiyong, XIA Qi, LI Bo. Effect of ZnO Doping on the Microstructure and Properties of CaO-B2O3-SiO2 Glass-ceramics. Materials Reports, 2021, 35(12): 12049-12052.
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2021, Vol. 35 
