首页|m(ZnO)/m(B2O3)质量比对低熔点封接玻璃Bi2O3-B2O3-ZnO结构、性能与润湿性的影响

m(ZnO)/m(B2O3)质量比对低熔点封接玻璃Bi2O3-B2O3-ZnO结构、性能与润湿性的影响

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  • 国家科技期刊平台
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针对真空玻璃封接的性能要求，本文采用高温熔融法制备了一种针对真空玻璃封接的铋系非晶无铅玻璃粉，通过高温X射线衍射、粉末X射线衍射、拉曼光谱、差式扫描量热仪、热膨胀测试和扫描电子显微镜等测试方法，研究了 m(ZnO)/m(B2O3)质量比对Bi2O3-B2O3-ZnO玻璃的网络结构、特征温度、热膨胀系数和封接温度的影响。结果表明，增加m(ZnO)/m(B2O3)质量比可促进锌氧多面体由[ZnO4]向[ZnO6]转变，导致热膨胀系数降低，特征温度升高。当m(Bi2O3)∶m(B2O3)∶m(ZnO)质量比为80∶7∶13，玻璃具有较低的玻璃化转变温度Tg(371 ℃)和膨胀软化温度Tf(401 ℃)，热膨胀系数为9。3 ×10-6 ℃-1，封接温度为450 ℃，可满足真空玻璃封接对低熔点封接玻璃粉的要求。
Effect of m(ZnO)/m(B2O3)Mass Ratio on Structure,Properties and Wettability of Low Melting Point Sealing Glass Bi2O3-B2O3-ZnO
Aiming at the performance requirements of vacuum glass sealing,a bismuth-based amorphous lead-free glass powder for vacuum glass sealing was prepared by high temperature melting method.The effects of m(ZnO)/m(B2O3)mass ratio on network structure,characteristic temperature,coefficient of thermal expansion and sealing temperature of Bi2O3-B2O3-ZnO glass were studied by high temperature X-ray diffraction,powder X-ray diffraction,Raman spectroscopy,differential scanning calorimeter,thermal expansion test and scanning electron microscope.The results show that increasing m(ZnO)/m(B2O3)mass ratio can promote the transformation of zinc-oxygen polyhedron from[ZnO4]to[ZnO6],resulting in a decrease in the coefficient of thermal expansion and an increase in the characteristic temperature.When m(Bi2O3)∶m(B2O3)∶m(ZnO)mass ratio is 80∶7∶13,the glass has lower glass transition temperature Tg(371 ℃)and expansion softening temperature Tf(401 ℃),the coefficient of thermal expansion is 9.3 × 10-6 ℃-1,and the sealing temperature is 450 ℃,which can meet the requirements of vacuum glass sealing for low melting point sealing glass powder.

m(ZnO)/m(B2O3)mass ratiocharacteristic temperatureBi2O3-B2O3-ZnO glassvacuum glasssealing temperaturesealing glass powder

康涛、熊春荣、符有杰、蔡邦辉、魏曙光、李军葛、姜宏

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海南大学,海南省特种玻璃重点实验室,海口 570228

海南海控特玻科技有限公司,澄迈 571924

四川英诺维新材料科技有限公司,达州 635107

m(ZnO)/m(B2O3)质量比 特征温度 Bi2O3-B2O3-ZnO玻璃 真空玻璃 封接温度 封接玻璃粉

国家自然科学基金海南大学海洋科技协同创新中心项目

U22A20124XTCX2022HYC26

2024

硅酸盐通报
中国硅酸盐学会 中材人工晶体研究院

硅酸盐通报

CSTPCD北大核心
影响因子：0.698
ISSN：1001-1625
年,卷(期)：2024.43(4)
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