| 石膏上水基电泳沉积纳米氧化锆的结构和性能特点 |
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| 引用本文： | 金磊,毛钊,孟祥康.石膏上水基电泳沉积纳米氧化锆的结构和性能特点[J].南京大学学报(自然科学版),2009,45(2). |
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| 作者姓名： | 金磊 毛钊 孟祥康 |
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| 作者单位： | [1]南京大学医学院临床学院,南京军区南京总医院口腔科,南京210002 [2]南京大学材料科学与丁程系,南京 210093 |
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| 摘 要： | 研究评估了水基电泳沉积作为口腔纳米氧化锆全瓷修复体成型方式的可能性.试验通过配置固含量为85wt%的低粘度水基悬浮液,在齿科专用石膏上直接以电泳沉积的方式成型出纳米氧化锆陶瓷预成体,并研究了其结构和性能特点.结果显示：水基电泳沉积成型的方式可以成型出结构非常均一的纳米氧化锆预成体,其表面光滑,外形与石膏基底外形一致,在微观结构上与已商品化的齿科CerconCAD/CAM氧化锆预成瓷块相比,结构更加致密、均匀,且未见明显气泡、裂缝等缺陷 要达到〉99.9%TD,水基电泳沉积成型的纳米氧化锆3Y-TZP所需的烧结温度为1320℃,低于常规的干压成型工艺,力学性能与Cercon氧化锆全瓷修复材料相近,能够满足临床需要.
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| 关 键 词： | 氧化锆 电泳沉积 齿科 全瓷修复体 |
The structure and property of nano-zirconia ceramic prepared by aqueous electrophoretic deposition on gypsum material |
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| Jin Lei,Mao Zhao,Meng Xiang-Kang.The structure and property of nano-zirconia ceramic prepared by aqueous electrophoretic deposition on gypsum material[J].Journal of Nanjing University: Nat Sci Ed,2009,45(2). |
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| Authors: | Jin Lei Mao Zhao Meng Xiang-Kang |
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| Institution: | 1.Stomatology Department;Nanjing General Hospital of Nanjing Command;Medical School;Nanjing University;Nanjing;210002;China;2.Materials Science and Engineering Department;210093;China |
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| Abstract: | The feasibility of using aqueous EPD(electrophoretic deposition)as a full ceramic crown forming technique was evaluated.The aqueous suspensions,with high solid content of 85wt%,were obtained as the EPD starting materials.High density green-bodies successfully directly formed on dental gypsum model material.It appears a good marginal quality to original model with a good surface and without visible cracks.The microstructure of green-body made by aqueous EPD was studied by using field emission scanning electr... |
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| Keywords: | zirconia electrophoretic deposition dental full ceramic restoration |
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