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
Effect of m(ZnO)/m(B2O3)Mass Ratio on Structure,Properties and Wettability of Low Melting Point Sealing Glass Bi2O3-B2O3-ZnO
康涛 1熊春荣 1符有杰 2蔡邦辉 3魏曙光 1李军葛 2姜宏4
作者信息
- 1. 海南大学,海南省特种玻璃重点实验室,海口 570228
- 2. 海南海控特玻科技有限公司,澄迈 571924
- 3. 四川英诺维新材料科技有限公司,达州 635107
- 4. 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
- 折叠
摘要
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.
Abstract
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.
关键词
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Key words
m(ZnO)/m(B2O3)mass ratio/characteristic temperature/Bi2O3-B2O3-ZnO glass/vacuum glass/sealing temperature/sealing glass powder引用本文复制引用
基金项目
国家自然科学基金(U22A20124)
海南大学海洋科技协同创新中心项目(XTCX2022HYC26)
出版年
2024
国家科技期刊平台
NSTL
万方数据