کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10624711 | 989606 | 2015 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization and synthesis of ZTA nanopowders and ceramics by rotating packed bed (RPB)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Uniform ZTA composites containing 25.5Â wt% ZrO2 were firstly prepared with rotating packed bed (RPB) reactor by coprecipitation method. The effects of RPB reactor on ZTA nanopowders were also investigated and compared with conventional reactor. The nanopowders in those reactors were characterized by XRD, SEM, TEM, EDS, and XPS. The results showed that ZTA nanopowders prepared by RPB had the lowest extent of agglomeration, the most homogeneous microstructure and the narrowest particle size distribution concentrating on 28-53Â nm with an average sphere diameter of 41Â nm. RPB could also dramatically decrease the reaction time and then decrease the energy consumption and production costs in preparation process. A further study on the microstructures of the ceramics by SEM revealed that ceramics sintered by those nanopowders also showed the smaller ZrO2 and Al2O3 grains and the more homogeneous distribution. All the results indicated that the presented novel reactor (RPB) may provide a new way to the production of nanopowders and ceramics in the industrial application.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 41, Issue 3, Part A, April 2015, Pages 3568-3573
Journal: Ceramics International - Volume 41, Issue 3, Part A, April 2015, Pages 3568-3573
نویسندگان
Xianglong Han, Zuozhong Liang, Wei Wang, Jianfeng Chen, Chunyu Xue, Hong Zhao,