非水基流延法制备ZrO_2/Al_2O_3陶瓷基片  

Preparation of ZrO_2/Al_2O_3 Ceramic Substrates by Non-Aqueous Tape Casting

作　　者：陈柏[1] 杨建[1] 郭林[1] 丘泰[1] CHEN Bai YANG Jian GUO Lin QIU Tai(College of Materials Science and Engineenng, Nanjing Tech University, Nanjing 210009, China)

机构地区：[1]南京工业大学材料科学与工程学院,南京210009

出　　处：《中国陶瓷》2016年第9期80-83,共4页China Ceramics

摘　　要：采用非水基流延成型工艺制备Zr O_2/Al_2O_3(ZTA)陶瓷基片,分析了有机添加剂对浆料流变性能的影响,确定了流延膜片排胶与烧结的温度。结果表明:分散剂三油酸甘油酯(GTO)的分散效果明显优于磷酸三丁酯(TBP),其最佳的分散剂添加量为4 wt%。浆料的粘度随着增塑剂与粘结剂的比值(R)的增加先减小后升高,R的最佳值为0.5。TG-DSC数据分析说明:温度为450℃时,流延膜片内的有机添加剂已经完全分解。当烧结温度为1620℃时,烧结样品的体积密度达到4.23 g/cm^3。Zr O_2/Al_2O_3（ZTA） ceramic substrates were fabricated through non-aqueous tape casting. The effects of organic additives on the rheological behaviors of the slurry were characterized and the binder removal and sintering temperature for the tapes were determined. The results show that compared with Tributyl phosphate, the dispersion of Glycerol trioleate was better, and the the optimum addition amount was about 4 wt﹪. The viscosity of slurries firstly decreased and then increased with the increase of the R ratio（plasticizer/binder） and the optimal R ratio was 0.5. TG-DSC analysis revealed that the organic additives in the tapes decomposed completely at 450 ℃. The bulk density of the samples reached 4.23 g/cm^3 sintered at 1620 ℃.

关 键 词：流延成型 流变性能 R值 烧结性能 

分 类 号：TQ174.758.11[化学工程—陶瓷工业]