کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10632053 | 992381 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of pH on the magnetic and dielectric properties of SiO2/NiZn ferrite nanocomposites
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of pH on the magnetic and dielectric properties of SiO2/NiZn ferrite nanocomposites Effect of pH on the magnetic and dielectric properties of SiO2/NiZn ferrite nanocomposites](/preview/png/10632053.png)
چکیده انگلیسی
A nitrate-citrate-silica gel was prepared from metallic nitrates, citric acid, and tetraethoxysilane (TEOS) by sol-gel process with different pH value, and it was further used to synthesize Ni0.5Zn0.5Fe2O4/20Â wt.% SiO2 nanocomposites by auto-combustion. The effect of pH on the magnetic and dielectric properties of SiO2/NiZn ferrite was studied by electron paramagnetic resonance (EPR), superconducting quantum interference device (SQUID), and impedance analyzer measurements. The pH in the starting solution affects the polymerization of TEOS, the dipole-dipole interactions existing among the NiZn ferrite, and then determines the particle size. Further, varying the pH has a direct effect on the EPR parameters (ÎHPP and T2), SQUID parameters (Ms, Mr, and Hc), and dielectric properties (dielectric constant and loss) of the as-synthesized powder.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 40, Issue 10, 6 October 2005, Pages 1822-1831
Journal: Materials Research Bulletin - Volume 40, Issue 10, 6 October 2005, Pages 1822-1831
نویسندگان
K.H. Wu, W.C. Huang, G.P. Wang, T.R. Wu,