Ca-Ba-Mg-Al-B-Si-O玻璃/α-Al2O3生瓷带结构优化设计与性能研究  

Optimal Design and Properties of Ca-Ba-Mg-Al-B-Si-O Glass/α-Al2O3 Green Sheet

作　　者：刘明[1] 许晓颖[1] 王晓峰[1] 王新武 安子琦 李朝 刘静华 张亚飞 刘瑞 张萍 LIU Ming;XU Xiaoying;WANG Xiaofeng;WANG Xinwu;AN Ziqi;LI Chao;LIU Jinghua;ZHANG Yafei;LIU Rui;ZHANG Ping(School of Materials Science and Engineering,Luoyang Institute of Science and Technology,Luoyang 471023,Henan,China)

机构地区：[1]洛阳理工学院材料科学与工程学院,河南洛阳471023

出　　处：《陶瓷学报》2020年第3期390-396,共7页Journal of Ceramics

基　　金：国家自然科学基金项目(U1304520);河南省科技攻关计划项目(162102210280);全国建筑材料行业科技创新计划项目(2015-M2-1);河南省高等学校重点科研项目计划(15A430035);国家级大学生创新创业训练计划项目(创新训练项目)(201911070001)。

摘　　要：以Ca-Ba-Mg-Al-B-Si-O玻璃与α-Al2O3为原料,通过调控分散剂的种类及含量、增塑剂与粘结剂的有机配比,以提高玻璃/α-Al2O3流延浆料性能,改善生瓷带结构与综合性能。重点研究了玻璃/α-Al2O3浆料的特性、生瓷带物理性能及其生坯烧结性能。研究结果表明,添加PEG、TEOA、TBP、Castor oil分散剂的Ca-Ba-Mg-Al-B-Si-O玻璃/α-Al2O3浆料的粘度依次降低。随着Castoroil含量从1wt.%增加至4wt.%,浆料稳定性、生瓷带体积密度与拉伸强度先增加后减小。添加2wt.%Castoroil的Ca-Ba-Mg-Al-B-Si-O玻璃/α-Al2O3生瓷带综合性能最佳,表面光滑,结构致密,其体积密度为1.94 g·cm-3,拉伸强度为1.59 MPa,且生坯烧结性能良好,使得该体系材料比较适合用作低温共烧陶瓷材料。Properties of glass/α-Al2O3 slurries,physical properties of green tapes and sintering properties of green bodies were studied with Ca-Ba-Mg-Al-B-Si-O glass andα-Al2O3 powder as the raw materials.The contents of dispersants,plasticizers and binders were optimized to achieve optimal properties of the tape casting slurry and the performances of the green tapes.It is found that the viscosity of the glass/α-Al2O3 slurry was decreased in with dispersants in the order of PEG,TEOA,TBP and castor oil.The slurry stability,bulk density and tensile strength of the green tapes were first increased and then decreased,as the content of castor oil was increased from 1 wt.%to 4 wt.%.The optimal content of castor oil was 2 wt.%,with which the Ca-Ba-MgAl-B-Si-O glass/α-Al2O3 green tapes have smooth surface,compact structure,bulk density of 1.94 g·cm-3,tensile strength of 1.59 MPa and high sinterability.Therefore,application for multilayer low-temperature co-fired ceramics.

关 键 词：Ca-Ba-Mg-Al-B-Si-O玻璃 Α-AL2O3 生瓷带 优化设计 性能 

分 类 号：TQ174.75[化学工程—陶瓷工业]