Effect of SrO Content on Structure,Thermal Properties and Chemical Stability of Bi2O3-B2O3-ZnO-SrO Low-melting Glass for Si-Al Alloy Package
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2020年第2期
论文作者：伍治伦 ZHANG Ming ZHANG Chunyan 孟范成 林慧兴
文章页码：368 - 376
摘 要：The 40Bi2O3-30B2O3-（30-x）ZnO-xSrO （x=0-15mol%,BBZSr） glass system was prepared by the conventional melt quenching method.The effect of SrO addition on structure,thermal properties,chemical stability and sealing performance of BBZSr glass were investigated thoroughly.The experimental results show that the total proportions of [BO3] group and [BO4] group decrease and the vibrations of [BiO3] group and [BiO6] group become weaker with the increase of SrO addition content,suggesting the glass network structure is strengthened owing to the SrO addition.Hence,both the thermal and chemical stability were significantly improved as the SrO content was increased.When the SrO content increased from 0 to 15mol%,the glass transition temperature and softening temperature slightly increased from 380 to 388 ℃ and from 392.7 to 402.2 ℃,respectively,meanwhile the coefficient of thermal expansion also increased from 10.49×10-6 to 11.16×10-6/℃ （30-300 ℃）.The BBZSr glass with 15mol% SrO exhibited excellent comprehensive properties with low glass transition temperature（384.9 ℃）,low softening temperature（400.3 ℃）,high coefficient of thermal expansion (11.14×10-6 ℃,30-300 ℃),good thermal and chemical stability.Besides,the glass had the good wetting behavior and sealing performance for Al-50%Si alloy.
伍治伦1，ZHANG Ming1，ZHANG Chunyan1，孟范成1，林慧兴2
1. College of Materials Science and Engineering, Chongqing University of Technology2. Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences
摘 要：The 40Bi2O3-30B2O3-（30-x）ZnO-xSrO （x=0-15mol%,BBZSr） glass system was prepared by the conventional melt quenching method.The effect of SrO addition on structure,thermal properties,chemical stability and sealing performance of BBZSr glass were investigated thoroughly.The experimental results show that the total proportions of [BO3] group and [BO4] group decrease and the vibrations of [BiO3] group and [BiO6] group become weaker with the increase of SrO addition content,suggesting the glass network structure is strengthened owing to the SrO addition.Hence,both the thermal and chemical stability were significantly improved as the SrO content was increased.When the SrO content increased from 0 to 15mol%,the glass transition temperature and softening temperature slightly increased from 380 to 388 ℃ and from 392.7 to 402.2 ℃,respectively,meanwhile the coefficient of thermal expansion also increased from 10.49×10-6 to 11.16×10-6/℃ （30-300 ℃）.The BBZSr glass with 15mol% SrO exhibited excellent comprehensive properties with low glass transition temperature（384.9 ℃）,low softening temperature（400.3 ℃）,high coefficient of thermal expansion (11.14×10-6 ℃,30-300 ℃),good thermal and chemical stability.Besides,the glass had the good wetting behavior and sealing performance for Al-50%Si alloy.
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