摘要
为了降低BaO-TiO2-B2O3-SiO2玻璃陶瓷中钡离子的析出,通过化学沉淀法和硫酸处理法对玻璃陶瓷粉体进行了表面修饰,在玻璃陶瓷粉体的表面形成了一层不溶于水的无机膜(氧化铝或BaSO4),不仅阻断了LTCC中钡离子与水的接触途径,使LTCC玻璃陶瓷粉体制备可适用于水基流延工艺的浆料,且操作简便,无毒副作用。研究发现用共沉淀法包覆氧化铝对玻璃陶瓷的性能影响不大,但是硫酸包覆处理后大大提高了玻璃陶瓷的烧结温度,限制了LTCC的应用。
For the BaO-TiO2-B2O3-SiO2 system LTCC powders will dissolve and release the Ba^2＋ in water and destroy the static stabilization of latex particles, hence, two methods of coating with alumina by precipitation process and sulfuric acid treatment process to prevent Ba^2＋ dissolving in water are deigned. The results showed the coating methods can prevent the Ba^2＋ dissolving in water simply and effectively, and the suitable aqueous slurry would be prepared with glass-ceramic within barium. In addition, the research results show that the coating alumina can＇t change the properties of LTCC, but sulfuric acid treatment process can improve the sintering temperature and restrict the applications of LTCC.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2007年第A01期869-872,共4页
Rare Metal Materials and Engineering
基金
清华大学新型陶瓷与精细工艺国家重点实验室开放基金项目资助
