Effect of ZrO2 Content on Structure and Properties of Bi2O3-B2O3-SiO2 Sealing Glass
Abstract
Bi2O3-B2O3-SiO2 sealing glass was firstly prepared by melting method. The effect of ZrO2 content on the phase composition, softening temperature, thermal analysis, acid resistance, microstructure and mechanical properties of sealing glass was studied by infrared spectra, X-ray diffraction analysis, thermal expansion coefficient testing, scanning electron microscopy and three-point bending testing. The results showed that when the ZrO2 content was less than 4%, crystal did not occurred in the glass sample, as it is known that when the ZrO2 content was equal to or more than 4%, ZrO2 crystal and α-Bi2O3 was found in the glass sample. \[BO3\], \[BO4\], \[BiO3\], \[SiO4\] and \[ZrO4\] groups are the main components of the sealing glass. When the ZrO2 content was less than 3% and with the increased amount of ZrO2, the softening temperature, transition temperature, acid resistance and bending strength of the glass sample increased, while its thermal expansion coefficient decreased. Meanwhile, when the ZrO2 content was 3%, softening temperature and transition temperature of the glass sample reached the maximum value of 510 ℃ and 562 ℃, respectively, while the thermal expansion coefficient reached the minimum value of 6.92×10-6 K-1, and the bending strength also reached the maximum value of 49 MPa. With the increase of ZrO2 content, the softening temperature, transition temperature, acid resistance and bending strength of the glass sample decreased, but its expansion coefficient increased.
Keywords: ZrO2, Bi2O3, sealing glass, acid resistance, expansion coefficients
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WANG Cheng-yu, PANG Shi-hong, TAO Ying. The progress in research of lead-free glasses [J]. Materials Review, 2006, 20(8);21-24. (In Chinese)
HOU Le-feng, FENG Ru-xin, ZENG Kai. Effects of oxides additive on thermal properties of low-melting sealing Bi2o3-B2o3 Оз-ZnO glasses [J]. Electrical Engineering Materials* 2015 (2):20 — 23. (In Chinese)
YU Shou-yu, FU Ren-li, ZHANG .lie. Research progress and development trends of glass used in electronic paste[J]. Electronics & Packaging, 2015, 15(1):41—48. (In Chinese)
ZHOU Min-jia, ZHANG Wen-wen, YANG Min-yang. Synthesis, characterization and properties of low-melting hi-sys-tem microcrystalline sealing glass[J]. Journal of Central China Normal University, 2015, 49(1): 92 — 97.
YU Xiao-jun , ZHU Li-hui , HUANG Qing-wei . Effects of Bi2Оз on structure and properties of Al2 03_Zn0-Bi2 O3-B2 O3 low-melting glasses [J]. Electronic Components and Materials. 2013* 32(9): 12-14. (In Chinese)
ZHANG Ji-hua, LI Ming-li, ZENG Ren-jie. Preparation of sealing glass ceramics rich in Bi2()a and its performance analy-sis[JJ. Materials Review, 2008, 22(2); 375 — 378. (In Chinese)
SARITHA D, MARKANDEYA Y. SALAGRAM M, et al. Effect of Bi2 O3 on physical, optical and structural studies of Bi203-B2 03-Zn0 glass[J]. Journal of Non-Crystalline Solids, 2008, 354(52/54); 5573-5579.
НЕ Feng, WANG Jun, DENG Da-wei, et al. Sintering behavior of Bi203-Zn0-B2 Оз system low-melting sealing glass[J], Journal of the Chinese Ceramic Society, 2009, 37( 10) : 1791 — 1795. (In Chinese)
HAN Min-fang, DU J un-ping, YU Li-an. Properties of Bi202-Ba0-Si02-Rr0v glass with ZrO2-filler composite sealant [J]. Journal of Inorganic Materials,2010, 25( 10) : 1058— 1064. (In Chinese)
DONG Fu-hui, XIA Xiu-feng, HE Ya-fei, et al. Effect of Bi2Оз high contents on structure and insulating properties of low-melting point electronic glass [J]. Materials Review,2009, 22(S3) ;261—263. (In Chinese)
TIAN Ying-liang, SUN Shi-bing. New glass technology [M]. Beijing: China Light Industry Press, 2009. (In Chinese)
FAN Hui-yan, HU Li-li, WANG Guo-nian, et al. Research on glass formation regions of Bi2 O3-B2 Оз~ТЮ2 systems [J]. Journal of Wuhan University of Technology, 2007,29(SI ) : 34 — 38. (In Chinese)
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