【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。更多还原

【Abstract】 Raman spectra of Y₂O₃—stabilized ZrO₂ ceramics samples were mea- sured. With the increase of Y₂O₃ contents there occurs the ZrO₂ structure phase transformation from monoclinic to tetragonal then to cubic at normal temperature. The stabilized tetragonal ZrO₂ at normal temperature is expect- ed．The results indicate that tetragonal ZrO₂ at normal temperature can be ab- tained if Y₂O₃ 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.更多还原