| CaO含量对CBAS玻璃/Al2O3低温共烧陶瓷的影响 |
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| 引用本文： | 李子杰,何峰,范云飞,谢峻林,梅书霞,杨虎,刘小青.CaO含量对CBAS玻璃/Al2O3低温共烧陶瓷的影响[J].硅酸盐通报,2022,41(11):3969-3978. |
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| 作者姓名： | 李子杰 何峰 范云飞 谢峻林 梅书霞 杨虎 刘小青 |
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| 作者单位： | 武汉理工大学材料科学与工程学院,武汉 430070 |
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| 基金项目： | 新型电子元器件关键材料与工艺国家重点实验室开放课题(FH2018sk201) |
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| 摘 要： | 本文主要研究了CaO含量对CaO-B2O3-Al2O3-SiO2(CBAS)玻璃/Al2O3低温共烧陶瓷结构和性能的影响。利用DSC、FTIR、XRD、SEM等测试方法对玻璃和低温共烧陶瓷的结构进行表征与分析。研究结果表明,CaO含量低于40%(质量分数,下同)时,由其引入的游离氧增加破坏了网络结构,降低玻璃黏度。CaO含量为40%及以上时,Ca2+与SiO4]四面体形成较大的阴离子基团,增大玻璃黏度,提高玻璃化转变温度。CaO会促进CaSiO3和Ca2SiO4的析出和CaSiO3向Ca2SiO4的转变。CaO含量增加导致陶瓷的致密度先增加后减少,晶相尺寸增大,使陶瓷的密度、抗折强度和介电常数先增大后减小。当CaO含量为40%时,样品综合性能最好,密度最大为2.94 g/cm3,抗折强度为153.44 MPa,介电常数为9.69。
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| 关 键 词： | 高CaO含量 CaO-B2O3-Al2O3-SiO2玻璃 低温共烧陶瓷 晶相结构 烧结 |
| 收稿时间： | 2022-05-06 |
Effect of CaO Content on CBAS Glass/Al2O3 Low Temperature Co-Fired Ceramic |
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| LI Zijie,HE Feng,FAN Yunfei,XIE Junlin,MEI Shuxia,YANG Hu,LIU Xiaoqing.Effect of CaO Content on CBAS Glass/Al2O3 Low Temperature Co-Fired Ceramic[J].Bulletin of the Chinese Ceramic Society,2022,41(11):3969-3978. |
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| Authors: | LI Zijie HE Feng FAN Yunfei XIE Junlin MEI Shuxia YANG Hu LIU Xiaoqing |
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| Affiliation: | School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | In this paper, the structure and performance effects of CaO content on CaO-B2O3-Al2O3-SiO2 (CBAS) glass/Al2O3 low temperature co-fired ceramic were mainly studied. The structure of glass and low temperature co-fired ceramic was characterized and analyzed by DSC, FTIR, XRD, SEM and other test methods. The research results show that when the CaO content is lower than 40% (mass fraction, the same bellow), the increase of free oxygen introduced by CaO destroys the glass network structure and reduces the glass viscosity. When the CaO content is greater than 40%, Ca2+ forms larger anion units with SiO4] tetrahedra, which improves glass viscosity and glass transition temperature. The precipitation of CaSiO3 and Ca2SiO4 and the transition from CaSiO3 to Ca2SiO4 are facilitated by CaO. As the CaO content increases, the denseness of the ceramics increases first and then decreases, and the crystalline phase size gradually increases, which leads to an increase in the density, flexural strength and dielectric constant of the ceramic and then a decrease. When the CaO content is 40%, the sample achieves the best performance with the maximum density of 2.94 g/cm3, the flexural strength of 153.44 MPa, and the dielectric constant of 9.69. |
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| Keywords: | high CaO content CaO-B2O3-Al2O3-SiO2 glass low temperature co-fired ceramic crystal structure sintering |
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