کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1530892 | 1512004 | 2008 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis and characterization of ZrO2–MgO solid solutions by citrate gel process Synthesis and characterization of ZrO2–MgO solid solutions by citrate gel process](/preview/png/1530892.png)
The zirconia–magnesia (ZrO2–x mol% MgO; x = 3–90) solid solutions were prepared by the citrate gel method. The phase identification and crystallite size of the samples were obtained using X-ray diffraction. Raman spectroscopy was performed to distinguish between cubic and tetragonal phases. The metastable tetragonal t′-form was determined in MgO-doped ZrO2 calcined at 800 °C. Samples containing up to 50 mol% MgO were revealed to be monoclinic ZrO2 solid solution and MgO when calcined at 1000 °C. Moreover, ZrO2–x mol% MgO (x = 60–90) solid solutions have metastable tetragonal t′ with MgO phase at 800 and 1000 °C, whereas no cubic phase was determined at any compositions of zirconia-based solid solutions. The prepared powders were characterized by transmission electron microscopy (TEM) to obtain the size and the morphology of the particles.
Journal: Materials Science and Engineering: B - Volume 148, Issues 1–3, 25 February 2008, Pages 226–229