| LiF和CaF2助熔效果的研究 |
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| 引用本文： | 李玉萍,徐晓伟,王碧燕,张永杰.LiF和CaF2助熔效果的研究[J].北京科技大学学报,2002,24(4):429-431. |
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| 作者姓名： | 李玉萍 徐晓伟 王碧燕 张永杰 |
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| 作者单位： | 1. 北京科技大学材料科学与工程学院,北京,100083;2. 北京科技大学应用科学学院,北京,100083 |
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| 基金项目： | 国家自然科学基金;59972003; |
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| 摘 要： | 通过抗弯强度测试研究了LiF和CaF2对陶瓷结合剂性能的影响. 结果表明在Al-Si-O系陶瓷结合剂中,CaF2的析晶现象明显大于LiF.以LiF为助溶剂的陶瓷结合剂比用CaF2为助溶剂的陶瓷结合剂熔点低、粘接强度大.当以LiF为助熔剂时,可以用摩尔数比值(Al2O3+B2O3)/(R2O+RO+0.5LiF)判断陶瓷结合剂自身的强度.
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| 关 键 词： | 助熔剂 陶瓷结合剂 氟化物 氟化锂 氟化钙 |
| 修稿时间： | 2001年5月28日 |
Research on the Fluxed Effect of LiF and B2O3 |
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| LI Yuping,XU Xiaowei,WANG Biyan,ZHANG Yongjie Material Science and Engineering School,UST Beijing,Beijing ,China Applied Science School,UST Beijing,Beijing ,China.Research on the Fluxed Effect of LiF and B2O3[J].Journal of University of Science and Technology Beijing,2002,24(4):429-431. |
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| Authors: | LI Yuping XU Xiaowei WANG Biyan ZHANG Yongjie Material Science and Engineering School UST Beijing Beijing China Applied Science School UST Beijing Beijing China |
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| Institution: | LI Yuping,XU Xiaowei,WANG Biyan,ZHANG Yongjie1) Material Science and Engineering School,UST Beijing,Beijing 100083,China 2) Applied Science School,UST Beijing,Beijing 100083,China |
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| Abstract: | The effects of LiF and CaF2 in the vitreous bond have been studied by the measurement of bonding strength. The results show that, the trend of CaF2 crystallization from Al-Si-O system vitreous bond is more obvious than that of LiF. The melting-point of the bonds is lower and the bonding force is stronger when using LiF than CaF2 as flux. The mole ratio (Al2O3+B2O3)/(R2O+RO+0.5LiF)can be used as a criterion to confirm the self-strength of the vitreous bonds. |
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| Keywords: | flux vitreous bond fluoride LiF CaF2 |
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