کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10625902 | 989637 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and characterization of LnMgAl11O19 (Ln=La, Nd, Gd) ceramic powders
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Preparation and characterization of LnMgAl11O19 (Ln=La, Nd, Gd) ceramic powders Preparation and characterization of LnMgAl11O19 (Ln=La, Nd, Gd) ceramic powders](/preview/png/10625902.png)
چکیده انگلیسی
Lanthanide hexaaluminate powders of LaMgAl11O19 (LMA), NdMgAl11O19 (NMA) and GdMgAl11O19 (GMA) were synthesized via the solid state reaction or sol-gel and calcination method. The LMA and NMA powders synthesized by the sol-gel and calcination method at 1600 °C for 8 h exhibit a single hexaaluminate phase with magnetoplumbite structure; however, the GMA powder synthesized by the sol-gel and calcination method at 1600 °C for 8 h contains both a hexaaluminate phase and a small amount of second phase GdAlO3 with a perovskite structure. The powders synthesized by the solid state reaction method at 1500 °C for 4 h have a small particle size of 1-3 μm, and a large specific surface area and a good uniformity. The powders synthesized by the sol-gel and calcination method at 1600 °C for 8 h have a particle size of 5-20 μm, and exhibit to a certain extent agglomeration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 39, Issue 8, December 2013, Pages 8841-8846
Journal: Ceramics International - Volume 39, Issue 8, December 2013, Pages 8841-8846
نویسندگان
Ren-Xian Zhu, Zhan-Guo Liu, Jia-Hu Ouyang, Yu Zhou,