Chemical synthesis of nanocrystalline Ni-Zn ferrites and their magnetic characteristics
Nanocrystalline Ni₁₋ₓZnₓFe₂O₄ powders were synthesized by the citrate precursor method, and the reaction sequence during the process was examiden. Studied of the reaction sequence showed that a NiFe2O4 phase was developed as soon as the metal citric acids were thermally decomposed. In the case of Zn...
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| Дата: | 2006 |
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| Автори: | , , , , , , , |
| Формат: | Стаття |
| Мова: | English |
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НТК «Інститут монокристалів» НАН України
2006
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| Назва видання: | Functional Materials |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/134187 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Chemical synthesis of nanocrystalline Ni-Zn ferrites and their magnetic characteristics / Jong-Chul Lee, D. Caruntu, Joon-Hyung Lee, Jeong-Joo Kim, B. Cushing, V. Golub, Sang-Hee Cho, C.J.O`Connor // Functional Materials. — 2006. — Т. 13, № 3. — С. 447-456. — Бібліогр.: 24 назв. — англ. |
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irk-123456789-1341872018-06-13T03:04:18Z Chemical synthesis of nanocrystalline Ni-Zn ferrites and their magnetic characteristics Jong-Chul Lee Joon-Hyung Lee Jeong-Joo Kim Golub, V. Sang-Hee Cho O`Connor, C.J. Caruntu, D. Cushing, B. Nanocrystalline Ni₁₋ₓZnₓFe₂O₄ powders were synthesized by the citrate precursor method, and the reaction sequence during the process was examiden. Studied of the reaction sequence showed that a NiFe2O4 phase was developed as soon as the metal citric acids were thermally decomposed. In the case of ZnFe₂O₄, however, ZnO and Fe₂O₃ were produced first when the metal citric acids were decomposed at low temperature. A single phase of ZnFe₂O₄ was subsequently obtained when a heat treatment was conducted at 500°C for 2 h. On the other hand, in order to examine the effect of particle size on magnetic characteristics of Ni-Zn ferrites, nanocrystalline Ni₁₋ₓZnₓFe₂O₄ powders with particle sizes of approximately 7, 25 and 100 nm were prepared by coprecipitation and citrate precursor methods. The magnetic characteristics of the ultrafine (7 nm) and coarse (100 nm) nanocrystalline ferrites showed differences. These differences are attributed to cation disordering at the surfaces of particles, wich becomes increasingly dominant as the particle size decreases. 2006 Article Chemical synthesis of nanocrystalline Ni-Zn ferrites and their magnetic characteristics / Jong-Chul Lee, D. Caruntu, Joon-Hyung Lee, Jeong-Joo Kim, B. Cushing, V. Golub, Sang-Hee Cho, C.J.O`Connor // Functional Materials. — 2006. — Т. 13, № 3. — С. 447-456. — Бібліогр.: 24 назв. — англ. 1027-5495 http://dspace.nbuv.gov.ua/handle/123456789/134187 en Functional Materials НТК «Інститут монокристалів» НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| description |
Nanocrystalline Ni₁₋ₓZnₓFe₂O₄ powders were synthesized by the citrate precursor method, and the reaction sequence during the process was examiden. Studied of the reaction sequence showed that a NiFe2O4 phase was developed as soon as the metal citric acids were thermally decomposed. In the case of ZnFe₂O₄, however, ZnO and Fe₂O₃ were produced first when the metal citric acids were decomposed at low temperature. A single phase of ZnFe₂O₄ was subsequently obtained when a heat treatment was conducted at 500°C for 2 h. On the other hand, in order to examine the effect of particle size on magnetic characteristics of Ni-Zn ferrites, nanocrystalline Ni₁₋ₓZnₓFe₂O₄ powders with particle sizes of approximately 7, 25 and 100 nm were prepared by coprecipitation and citrate precursor methods. The magnetic characteristics of the ultrafine (7 nm) and coarse (100 nm) nanocrystalline ferrites showed differences. These differences are attributed to cation disordering at the surfaces of particles, wich becomes increasingly dominant as the particle size decreases. |
| format |
Article |
| author |
Jong-Chul Lee Joon-Hyung Lee Jeong-Joo Kim Golub, V. Sang-Hee Cho O`Connor, C.J. Caruntu, D. Cushing, B. |
| spellingShingle |
Jong-Chul Lee Joon-Hyung Lee Jeong-Joo Kim Golub, V. Sang-Hee Cho O`Connor, C.J. Caruntu, D. Cushing, B. Chemical synthesis of nanocrystalline Ni-Zn ferrites and their magnetic characteristics Functional Materials |
| author_facet |
Jong-Chul Lee Joon-Hyung Lee Jeong-Joo Kim Golub, V. Sang-Hee Cho O`Connor, C.J. Caruntu, D. Cushing, B. |
| author_sort |
Jong-Chul Lee |
| title |
Chemical synthesis of nanocrystalline Ni-Zn ferrites and their magnetic characteristics |
| title_short |
Chemical synthesis of nanocrystalline Ni-Zn ferrites and their magnetic characteristics |
| title_full |
Chemical synthesis of nanocrystalline Ni-Zn ferrites and their magnetic characteristics |
| title_fullStr |
Chemical synthesis of nanocrystalline Ni-Zn ferrites and their magnetic characteristics |
| title_full_unstemmed |
Chemical synthesis of nanocrystalline Ni-Zn ferrites and their magnetic characteristics |
| title_sort |
chemical synthesis of nanocrystalline ni-zn ferrites and their magnetic characteristics |
| publisher |
НТК «Інститут монокристалів» НАН України |
| publishDate |
2006 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/134187 |
| citation_txt |
Chemical synthesis of nanocrystalline Ni-Zn ferrites and their magnetic characteristics / Jong-Chul Lee, D. Caruntu, Joon-Hyung Lee, Jeong-Joo Kim, B. Cushing, V. Golub, Sang-Hee Cho, C.J.O`Connor // Functional Materials. — 2006. — Т. 13, № 3. — С. 447-456. — Бібліогр.: 24 назв. — англ. |
| series |
Functional Materials |
| work_keys_str_mv |
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2025-07-09T20:29:39Z |
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2025-07-09T20:29:39Z |
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