| 凝胶注模氧化锆陶瓷浆料颗粒级配研究 |
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| 引用本文： | 王宇华,高利敏,张富强**.凝胶注模氧化锆陶瓷浆料颗粒级配研究[J].临床口腔医学杂志,2012(9):527-529. |
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| 作者姓名： | 王宇华 高利敏 张富强** |
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| 作者单位： | 1. 上海交通大学医学院附属第九人民医院·口腔医学院口腔修复科·上海市口腔医学重点实验室上海 200050
2. 广东省口腔医院 广东 广州 510280 |
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| 基金项目： | 上海交通大学医学院基金（11XJ21047）; 上海第九人民医院院基金（2010-03）; 上海市重点学科（特色学科）建设项目（T0202,S30206） |
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| 摘 要： | 目的:配制凝胶注模法成型氧化锆陶瓷浆料,研究颗粒级配的混合氧化锆颗粒粉末配制凝胶注模氧化锆浆料后素坯的收缩和预烧结后的尺寸变化。方法:采用不同的颗粒粒径,制作氧化锆浆料,分为纳米组H1(26 nm);亚微米组H2(300 nm);混合组H3(1μm+300 nm+26 nm)。测试浆料的固含量与收缩率。结果:H1,H2,H3组的固含量分别为60.11 wt%,81.58 wt%,82.36 wt%;素坯的收缩率分别为0.87%,0.26%,0.29%,致密化收缩率分别为26.1%,23.1%,22.4%。结论:采用颗粒级配的混合组H3(1μm+300 nm+26 nm)的氧化锆浆料具有最高的固含量及最低收缩率。并获得最适合玻璃渗透的预烧结程序。
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| 关 键 词： | 氧化锆 凝胶成型 颗粒级配 固含量 |
Effects of grain gradation in the system of gel-casting zirconia ceramic. |
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| WANG Yu-hua,GAO Li-min,ZHANG Fu-qiang.Effects of grain gradation in the system of gel-casting zirconia ceramic.[J].Journal of Clinical Stomatology,2012(9):527-529. |
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| Authors: | WANG Yu-hua GAO Li-min ZHANG Fu-qiang |
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| Institution: | WANG Yu-hua, GAO Li-min, ZHA NG Fu-qian. 1.Department of Prosthodontics, Ninth People ＇s Hospital, College of Stomatology, Shanghai Jiaotong Uni- versity School of Medicine,Shanghai Key Laboratory of Stomatology, Shanghai 200011, China： 2.Stomatology Hospital of Guangdong Provinence , Guangdong Guangzhou 510280, China. |
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| Abstract: | Objective： To study the effects of grain gradation on the shrinkage of green body before and after heating in the system of gel-casting zirconia ceramic, the best pre-heating temperature were also evaluated. Method： Samples were divided into 3 groups according to grain composition： nanometer group H1 （26n m） ; submicron group H2 （300 nm） ： mixed group H3 （1 μm＋300 nm＋26 nm）. Solid content and linear shrinkage were measured. Result： The solid content of HI, H2, H3 were 60.11 wt%, 81.58 wt%,82.36 wt% ~the shrinkage of green body were 0.87 %,0.26 %,0.29 %,densification shrinkage were 26.1%, 23.1%, 22.4 %o Conclusion：The fixed group shows higher solid content and lower shrinkage. The heating program was also evaluated. |
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| Keywords: | zirconia gel-casting grain gradation solid content |
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