| YAG陶瓷磨球注浆成型用浆料的流变性能研究 |
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| 引用本文： | 王琳,肖浩然,刘桂珍,周建. YAG陶瓷磨球注浆成型用浆料的流变性能研究[J]. 华中科技大学学报(自然科学版), 2012, 40(10): 58-62 |
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| 作者姓名： | 王琳 肖浩然 刘桂珍 周建 |
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| 作者单位： | 1. 武汉理工大学信息工程学院,湖北武汉430070 武汉理工大学材料复合新技术国家重点实验室,湖北武汉430070
2. 武汉理工大学材料复合新技术国家重点实验室,湖北武汉,430070 |
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| 基金项目： | 国家自然科学基金资助项目(51172175,51072147);湖北省自然科学基金资助项目(2010CDB00805,2010CDA003) |
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| 摘 要： | 以高纯Al2O3和Y2O3粉体为原料，在浆料pH值为9．7，分散剂PAA-NHt体积分数为1．5％，固相体积分数为50％，球磨时间12h，增塑剂PEG体积分数为1．5％的优化工艺条件下制备出流动性好、分散均匀的Y2O3-Al2O3混合浆料，利用注浆成型制备YAG陶瓷球形生坯，在60℃干燥24h条件下，球坯相对密度可达50％以上，球坯圆度偏差仅0．5346％，陶瓷球坯颗粒分布均匀．以体积分数0．8％的SiO2为烧结助剂，在1650℃保温6h，采用液相法烧结获得了自磨损率仅5．68×10^-6／h的YAG新型陶瓷磨球，可用于高性能YAG陶瓷的制备．
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| 关 键 词： | 注浆成型 浆料 流变性能 YAG陶瓷 磨球 |
Rheological properties of slurry for YAG ceramic milling balls in slip casting |
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| Wang Lina,b Xiao Haoranb Liu Guizhenb Zhou Jian. Rheological properties of slurry for YAG ceramic milling balls in slip casting[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2012, 40(10): 58-62 |
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| Authors: | Wang Lina b Xiao Haoranb Liu Guizhenb Zhou Jian |
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| Affiliation: | b(a School of Information Engineering;b State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,China) |
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| Abstract: | High purity Al2O3 and Y2O3 powders were used as raw materials.The dispersed and homogeneous Y2O3-Al2O3 mixed slurry was prepared in optimizing parameters as follows: 9.7 in pH value,1.5% in dispersant(PAA-NH4),50% in solid loading,ball milling time for 12 h,1.5% in binder(PEG) content.After vacuum drying at 60 ℃ for 24 h,the relative density of YAG green balls was up to 50%,and the roundness deviation was 0.534 6% by slip casting,with the particle distribute uniformly.The YAG advanced ceramic milling balls were sintered by liquid phase sintering method,with 0.8% SiO2 powder as sintering agent,and were obtained well wear resistance of YAG ceramic milling balls with 5.68×10-6 /h in wearable modulus in sintering at 1 650 ℃ for 6 h.The balls can be used in preparing for YAG ceramic with high properties. |
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| Keywords: | slip casting slurry rheological property YAG(yttrium aluminum garnet) ceramic milling balls |
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