Dilatometric and kinetic analysis of sintering Li–Zn ferrite ceramics from milled reagents; Journal of Thermal Analysis and Calorimetry; Vol. 142, iss. 5
| Parent link: | Journal of Thermal Analysis and Calorimetry Vol. 142, iss. 5.— 2020.— [P. 1783–1789] |
|---|---|
| 共著者: | , |
| その他の著者: | , , , , , |
| 要約: | Title screen The impact of mechanical milling of the mixture of Fe2O3–Li2CO3–ZnO reagents on thermal sintering of lithium–zinc ferrites of Li0.4Fe2.4Zn0.2O4 composition was studied using X-ray diffraction, dilatometric and kinetic analyses. The dilatometric analysis showed that mechanical pre-activation of the mixture of the initial reagents in a planetary mill reduces the initial shrinkage point and accelerates compaction of ferrite-pressed samples during sintering, which ultimately increases the density of the finished ferrite ceramics. The sintering of lithium–zinc ferrite from a non-milled mixture proceeds in two steps. At the first stage, the samples show linear expansion, and at ~?720 °C, a sharp shrinkage occurs. The data obtained from milled samples indicate that shrinkage starts at lower temperatures and is in the range of 370–400 °C. This result allows simultaneous synthesis and sintering of lithium–zinc ferrite through one-stage heating of pressed samples to the sintering point. The resulting lithium–zinc ferrite ceramics exhibits high density, specific magnetization and Curie temperature. The kinetic analysis of ferrite compaction was performed, and kinetic parameters and the model to describe this process were found. Режим доступа: по договору с организацией-держателем ресурса |
| 言語: | 英語 |
| 出版事項: |
2020
|
| 主題: | |
| オンライン･アクセス: | https://doi.org/10.1007/s10973-020-10326-5 |
| フォーマット: | 電子媒体 図書の章 |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662897 |
MARC
| LEADER | 00000naa0a2200000 4500 | ||
|---|---|---|---|
| 001 | 662897 | ||
| 005 | 20250416103108.0 | ||
| 035 | |a (RuTPU)RU\TPU\network\34056 | ||
| 090 | |a 662897 | ||
| 100 | |a 20201204d2020 k||y0rusy50 ba | ||
| 101 | 0 | |a eng | |
| 135 | |a drcn ---uucaa | ||
| 181 | 0 | |a i | |
| 182 | 0 | |a b | |
| 200 | 1 | |a Dilatometric and kinetic analysis of sintering Li–Zn ferrite ceramics from milled reagents |f E. V. Nikolaev, E. N. Lysenko, A. P. Surzhikov [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 30 tit.] | ||
| 330 | |a The impact of mechanical milling of the mixture of Fe2O3–Li2CO3–ZnO reagents on thermal sintering of lithium–zinc ferrites of Li0.4Fe2.4Zn0.2O4 composition was studied using X-ray diffraction, dilatometric and kinetic analyses. The dilatometric analysis showed that mechanical pre-activation of the mixture of the initial reagents in a planetary mill reduces the initial shrinkage point and accelerates compaction of ferrite-pressed samples during sintering, which ultimately increases the density of the finished ferrite ceramics. The sintering of lithium–zinc ferrite from a non-milled mixture proceeds in two steps. At the first stage, the samples show linear expansion, and at ~?720 °C, a sharp shrinkage occurs. The data obtained from milled samples indicate that shrinkage starts at lower temperatures and is in the range of 370–400 °C. This result allows simultaneous synthesis and sintering of lithium–zinc ferrite through one-stage heating of pressed samples to the sintering point. The resulting lithium–zinc ferrite ceramics exhibits high density, specific magnetization and Curie temperature. The kinetic analysis of ferrite compaction was performed, and kinetic parameters and the model to describe this process were found. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Journal of Thermal Analysis and Calorimetry | ||
| 463 | |t Vol. 142, iss. 5 |v [P. 1783–1789] |d 2020 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a lithium–zinc ceramics | |
| 610 | 1 | |a mechanical milling | |
| 610 | 1 | |a dilatometric analysis | |
| 610 | 1 | |a kinetic analysis | |
| 610 | 1 | |a фрезерование | |
| 610 | 1 | |a литий-цинковые ферриты | |
| 610 | 1 | |a керамика | |
| 610 | 1 | |a кинетический анализ | |
| 701 | 1 | |a Nikolaev |b E. V. |c specialist in the field of electrical engineering |c engineer of Tomsk Polytechnic University |f 1989- |g Evgeny Vladimirovich |3 (RuTPU)RU\TPU\pers\34529 |9 17910 | |
| 701 | 1 | |a Lysenko |b E. N. |c Specialist in the field of electrical engineering |c Professor of Tomsk Polytechnic University, Doctor of technical sciences |f 1972- |g Elena Nikolaevna |3 (RuTPU)RU\TPU\pers\32050 |9 16097 | |
| 701 | 1 | |a Surzhikov |b A. P. |c physicist |c Professor of Tomsk Polytechnic University, doctor of physical and mathematical sciences (DSc) |f 1951- |g Anatoly Petrovich |3 (RuTPU)RU\TPU\pers\30237 |9 14617 | |
| 701 | 1 | |a Gyngazov (Ghyngazov) |b S. A. |c specialist in the field of electronics |c Professor of Tomsk Polytechnic University, Doctor of technical sciences |f 1958- |g Sergey Anatolievich |3 (RuTPU)RU\TPU\pers\33279 |9 17024 | |
| 701 | 1 | |a Bordunov |b S. V. |g Sergey Vladimirovich | |
| 701 | 1 | |a Nikolaeva |b S. A. |c specialist in the field of electrical engineering |c Laboratory assistant researcher of Tomsk Polytechnic University |f 1990- |g Svetlana Andreevna |3 (RuTPU)RU\TPU\pers\37341 |9 20260 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа неразрушающего контроля и безопасности |b Отделение контроля и диагностики |3 (RuTPU)RU\TPU\col\23584 |9 28375 |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Институт неразрушающего контроля |b Проблемная научно-исследовательская лаборатория электроники, диэлектриков и полупроводников |3 (RuTPU)RU\TPU\col\19033 |9 27309 |
| 801 | 2 | |a RU |b 63413507 |c 20201204 |g RCR | |
| 850 | |a 63413507 | ||
| 856 | 4 | |u https://doi.org/10.1007/s10973-020-10326-5 | |
| 942 | |c CF | ||