| Y_2O_3稳定Z_rO_2相结构的拉曼光谱研究 |
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| 引用本文： | 谷晋骐 岳武 柴玉瑛. Y_2O_3稳定Z_rO_2相结构的拉曼光谱研究[J]. 光散射学报, 1994, 6(2): 75-80 |
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| 作者姓名： | 谷晋骐 岳武 柴玉瑛 |
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| 作者单位： | [1]天津大学物理系，天津300072 [1]天津大学物理系天津300072 |
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| 摘 要： | 测试了Ｚ＿ｒＯ＿２＋ｎｍｏｌ％Ｙ＿２Ｏ＿３系统多种陶瓷样品的拉曼光谱，发现随着Ｙ＿２Ｏ＿３含量的增加，在常温下，Ｚ＿ｒＯ＿２即可发生由单斜相到四方相再到立方相的结构相变，常温下稳定的四方相Ｚ＿ｒＯ＿２是我们所希望的。测试结果表明，当Ｙ＿２Ｏ＿３含量为２～２．２５ｍｏｌ％时，可获得常温下稳定的四方相Ｚ＿ｒＯ＿２。研究不同工艺条件对样品相结构的影响，找出了制造样品的最佳工艺条件。
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| 关 键 词： | 拉曼光谱；工程陶瓷；结构相变 |
Raman Spectra of Y_2O_3—stabilized Z_rO_2 Phase Structure |
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| Abstract: | Raman spectra of Y_2O_3—stabilized ZrO_2 ceramics samples were mea- sured. With the increase of Y_2O_3 contents there occurs the ZrO_2 structure phase transformation from monoclinic to tetragonal then to cubic at normal temperature. The stabilized tetragonal ZrO_2 at normal temperature is expect- ed．The results indicate that tetragonal ZrO_2 at normal temperature can be ab- tained if Y_2O_3 contents are 2～2．25 mol％. The effects of different technologi- cal conditions on sample phase sturctures were studied．The optimum techno- logical condition preparing samples was found. |
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| Keywords: | Raman spectra Engineering ceramics Structure phase trans- formation. |
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