کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1266729 | 972294 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Kinetics and mechanism of nickel ferrite formation under high temperature ultrasonic treatment
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The effect of simultaneous ultrasonic and thermal treatment on kinetics and mechanism of nickel ferrite formation was studied. It was established that sonication leads to notable increase of the mean rate of this reaction and decrease of effective activation energy from 190 ± 5 to 125 ± 7 kJ/mol. XRD data show that ultrasonic treatment significantly affects the microstructure of both initial reagent (Fe2O3) and reaction product (NiFe2O4) thus promoting formation of well developed reaction zone. A general model of ferrite formation mechanism under high temperature ultrasonic treatment was proposed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasonics Sonochemistry - Volume 14, Issue 2, February 2007, Pages 131–134
Journal: Ultrasonics Sonochemistry - Volume 14, Issue 2, February 2007, Pages 131–134
نویسندگان
Alexander Ye. Baranchikov, Vladimir K. Ivanov, Yuri D. Tretyakov,