کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8948431 | 1645668 | 2018 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of dispersant content and drying method on ZrO2@Al2O3 multiphase ceramic powders
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
ZrO2@Al2O3 composite ceramic powders were prepared by solution combustion method with aluminum nitrate (Al (NO3)3) and 3â¯mol% yttria-stabilized tetragonal zirconia polycrystal (3Y- TZP) as the main raw materials, ammonium polyacrylate (PAA-NH4) as a dispersant, urea (CO (NH2)2) as a reducing agent. The effects of PAA-NH4 concentration and drying method on the microstructure and morphology of the ZrO2@Al2O3 powders were investigated. The results showed that when the concentration of PAA-NH4 was 1.5â¯wt%, and the molar ratio of Al (NO3)3 to CO (NH2)2 was 1:2, the ZrO2@Al2O3 powders with uniform grain size and high crystallinity could be synthesized by solution combustion drying method. Additionally, the abnormal growth of 3Y- TZP grain in ZrO2@Al2O3 was suppressed and the crystalline phase transformation trend (t-ZrO2 to m-ZrO2) was obviously decreased after sintering at 1600â¯Â°C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 15, 15 October 2018, Pages 17630-17634
Journal: Ceramics International - Volume 44, Issue 15, 15 October 2018, Pages 17630-17634
نویسندگان
Jun Yu, Feng-Xiu Yu, Shan Wang, Jie-Feng Zhang, Feng-Qiang Fan, Qiang Long,