Effect of Aluminum Addition on Microstructure and Properties of SiO2-B2O3-Al2O3-CaO Vitrified Bond
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2016年第6期
论文作者：何峰 ZHANG Wentao ZHOU Qi XIE Junlin LI Ying
文章页码：1267 - 1271
摘 要：Influence of aluminum addition on the structures and properties of SiO2-B2O3-Al2O3-CaO vitrified bond at low sintering temperature and high strength was discussed. FTIR and XRD analyses were used to characterize the structures of the basic vitrified bond with different contents of aluminum. The bending strength and the thermal expansion coefficients were also tested. Meanwhile, the microstructures of composite specimens at sintering temperature of 660 ℃ were observed by scanning electron microscope（SEM）. The experimental results showed that the properties of vitrified bond with 1wt% aluminum were improved significantly, where the bending strength, Rockwell hardness, and thermal expansion coefficient of the vitrified bond reached 132 MPa, 63 HRB, and 6.73×10-6 ℃-1, respectively.
何峰1,2，ZHANG Wentao1，ZHOU Qi2，XIE Junlin1,2，LI Ying2
1. State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology2. School of Materials Science and Engineering,Wuhan University of Technology
摘 要：Influence of aluminum addition on the structures and properties of SiO2-B2O3-Al2O3-CaO vitrified bond at low sintering temperature and high strength was discussed. FTIR and XRD analyses were used to characterize the structures of the basic vitrified bond with different contents of aluminum. The bending strength and the thermal expansion coefficients were also tested. Meanwhile, the microstructures of composite specimens at sintering temperature of 660 ℃ were observed by scanning electron microscope（SEM）. The experimental results showed that the properties of vitrified bond with 1wt% aluminum were improved significantly, where the bending strength, Rockwell hardness, and thermal expansion coefficient of the vitrified bond reached 132 MPa, 63 HRB, and 6.73×10-6 ℃-1, respectively.
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