Structural and AC magnetic properties of (Ni0.4Cu0.15Zn0.45)1-xMnxFe2O4(x=0.30, 0.45) due to Mn substitution
This thesis is submitted in partial fulfillment of the requirements for the degree of Bachelor of Applied Physics and Electronics, 2017.
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| Язык: | English |
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BRAC Univeristy
2018
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| Online-ссылка: | http://hdl.handle.net/10361/10117 |
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10361-101172019-09-30T04:37:07Z Structural and AC magnetic properties of (Ni0.4Cu0.15Zn0.45)1-xMnxFe2O4(x=0.30, 0.45) due to Mn substitution Mridula, Zarrin Tasnim Hossain, Dr. A.K.M Akther Department of Mathematics and Natural Sciences, BRAC University AC magnetic This thesis is submitted in partial fulfillment of the requirements for the degree of Bachelor of Applied Physics and Electronics, 2017. Cataloged from PDF version of thesis report. Includes bibliographical references (page 58-60). Structural and magnetic properties of (Ni0.4Cu0.15Zn0.45)1-xMnxFe2O4 ferrites(x=0.3, x=0.45) were investigated and it was prepared by solid state reaction methods. Various chemical compositions were calcined at 950C, and samples prepared from these compositions were sintered at 1100C in air for 5 hours. The X-ray diffraction analysis, SEM and EDS results were performed for the samples sintered at 1100C temperature. X-ray diffraction pattern confirms the formation of single phase spinel structure and the lattice parameter which resulted in increasing with the increase of Mn2+. The compositions show a decrease in bulk and theoretical density with increase of Mn2+ that can be explained by the atomic weights of the doped and substituted elements. It is also observed that porosity increases, while gain size decreases with increasing of Mn content. EDS report shows the homogeneous distribution of elements in the samples. The permeability curves have shown a quite variation while being sintered at different temperatures. However, the real part is always higher for all temperatures when Mn is absent from the composition. With each content increment, real part of permeability decreases with x=0.3 to x=0.45 at 1100, 1150 and 12000C. Natural resonance frequency is noticed to be decreased with temperature rising, although it rises with increasing Mn content. Zarrin Tasnim Mridula B. Applied Physics and Electronics 2018-05-10T07:05:53Z 2018-05-10T07:05:53Z 2017 2017 Thesis ID 13115005 http://hdl.handle.net/10361/10117 en BRAC University theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. 60 pages application/pdf BRAC Univeristy |
| institution |
Brac University |
| collection |
Institutional Repository |
| language |
English |
| topic |
AC magnetic |
| spellingShingle |
AC magnetic Mridula, Zarrin Tasnim Structural and AC magnetic properties of (Ni0.4Cu0.15Zn0.45)1-xMnxFe2O4(x=0.30, 0.45) due to Mn substitution |
| description |
This thesis is submitted in partial fulfillment of the requirements for the degree of Bachelor of Applied Physics and Electronics, 2017. |
| author2 |
Hossain, Dr. A.K.M Akther |
| author_facet |
Hossain, Dr. A.K.M Akther Mridula, Zarrin Tasnim |
| format |
Thesis |
| author |
Mridula, Zarrin Tasnim |
| author_sort |
Mridula, Zarrin Tasnim |
| title |
Structural and AC magnetic properties of (Ni0.4Cu0.15Zn0.45)1-xMnxFe2O4(x=0.30, 0.45) due to Mn substitution |
| title_short |
Structural and AC magnetic properties of (Ni0.4Cu0.15Zn0.45)1-xMnxFe2O4(x=0.30, 0.45) due to Mn substitution |
| title_full |
Structural and AC magnetic properties of (Ni0.4Cu0.15Zn0.45)1-xMnxFe2O4(x=0.30, 0.45) due to Mn substitution |
| title_fullStr |
Structural and AC magnetic properties of (Ni0.4Cu0.15Zn0.45)1-xMnxFe2O4(x=0.30, 0.45) due to Mn substitution |
| title_full_unstemmed |
Structural and AC magnetic properties of (Ni0.4Cu0.15Zn0.45)1-xMnxFe2O4(x=0.30, 0.45) due to Mn substitution |
| title_sort |
structural and ac magnetic properties of (ni0.4cu0.15zn0.45)1-xmnxfe2o4(x=0.30, 0.45) due to mn substitution |
| publisher |
BRAC Univeristy |
| publishDate |
2018 |
| url |
http://hdl.handle.net/10361/10117 |
| work_keys_str_mv |
AT mridulazarrintasnim structuralandacmagneticpropertiesofni04cu015zn0451xmnxfe2o4x030045duetomnsubstitution |
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1814309033183543296 |