| 透明氧化铝陶瓷的制备和体视学在其性能表征中的作用 |
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| 引用本文： | 丁君,杨秋红,曾智江. 透明氧化铝陶瓷的制备和体视学在其性能表征中的作用[J]. 上海大学学报(自然科学版), 2006, 12(3): 292-297 |
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| 作者姓名： | 丁君 杨秋红 曾智江 |
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| 作者单位： | 上海大学,材料科学与工程学院,上海,200072;上海大学,材料科学与工程学院,上海,200072;上海大学,材料科学与工程学院,上海,200072 |
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| 摘 要： | 采用传统无压烧结工艺在氢气氛下制备透明氧化铝陶瓷.结果表明,适量氧化镁和镁铝尖晶石都能有效改善Al2O3陶瓷烧结性能,适当延长保温时间有利于样品体积密度的增加,但是掺杂微量氧化镁更有利于透过率的提高.采用体视学方法首次预测了透明氧化铝陶瓷透过率的相对高低,预测的结果和实际测得的透过率相对高低一致.
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| 关 键 词： | 透明氧化铝陶瓷 体积密度 显微结构 透过率 体视学 |
| 文章编号： | 1007-2861（2006）03-0292-06 |
| 收稿时间： | 2005-08-30 |
| 修稿时间： | 2005-08-30 |
Fabrication of Transparent Alumina Ceramics and Application of Stereology to Analysis of Optical Transmittance |
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| DING Jun,YANG Qiu-hong,ZENG Zhi-jiang. Fabrication of Transparent Alumina Ceramics and Application of Stereology to Analysis of Optical Transmittance[J]. Journal of Shanghai University(Natural Science), 2006, 12(3): 292-297 |
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| Authors: | DING Jun YANG Qiu-hong ZENG Zhi-jiang |
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| Affiliation: | School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China |
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| Abstract: | Transparent Al2O3 ceramics were fabricated by pressureless sintering in an atmosphere of hydrogen. The results show that both magnesia and spinel are good additives to improve sintering of alumina, and bulk density of the sample can also be increased by properly extending sintering holding time. In comparison with samples doped with spinel, transmissions of samples doped with magnesia are higher. For the first time ever, the stereology method was used in this work to predict transmission of transparent alumina. Transmission calculated with stereology agreed well with those measured in experiments. |
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| Keywords: | transparent alumina bulk density microstructure transmission strereology |
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