X-ray characterization of structural defects in electroexplosive nanopowders
| Источник: | High Temperature Material Processes.— , 1997- Vol. 9, iss. 2.— 2005.— [P. 253-262] |
|---|---|
| Главный автор: | |
| Другие авторы: | , |
| Примечания: | Title screen X-ray structure investigations of nanosized aluminum and copper powders prepared with a transient plasma process by wire electrical explosion (WEE) have been carried out To compare structural characteristics, powders produced by conventional routes have also been investigated. Calculations of lattice parameter values in different plane (hkl) directions were done using experimental data. Visible deviations of lattice parameter vataes for nanosized powders, in comparison with JCPDS references and powders prepared through conventional pathways, have been found out. To determine the influence of the dimensional fector on microdeformations, all specimens were divided into sub-micronic and nanometric fractions by the sedimentation in cold absolute alcohol. According to X-ray structure analysis, the increase of lattice parameter is more considerable in the submicronic fraction of electroexplosive powder than that of nanometric fraction. The conclusion was made that severe conditions of etectroexplosive powders fabrication, as well as different cooling rates of particles, can play an essential role in the deformation of their crystal lattice. In addition, we may conclude that the deformation of the crystal lattice corresponds to an energy excess stored in these nano-sized powders prepared with the wire electrical explosion technology. Режим доступа: по договору с организацией-держателем ресурса |
| Язык: | английский |
| Опубликовано: |
2005
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| Предметы: | |
| Online-ссылка: | http://dx.doi.org/10.1615/HighTempMatProc.v9.i2.70 |
| Формат: | Электронный ресурс Статья |
| Запись в KOHA: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=649339 |
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| 200 | 1 | |a X-ray characterization of structural defects in electroexplosive nanopowders |f V. An, A. P. Ilyin, C. De Izarra | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 330 | |a X-ray structure investigations of nanosized aluminum and copper powders prepared with a transient plasma process by wire electrical explosion (WEE) have been carried out To compare structural characteristics, powders produced by conventional routes have also been investigated. Calculations of lattice parameter values in different plane (hkl) directions were done using experimental data. Visible deviations of lattice parameter vataes for nanosized powders, in comparison with JCPDS references and powders prepared through conventional pathways, have been found out. To determine the influence of the dimensional fector on microdeformations, all specimens were divided into sub-micronic and nanometric fractions by the sedimentation in cold absolute alcohol. According to X-ray structure analysis, the increase of lattice parameter is more considerable in the submicronic fraction of electroexplosive powder than that of nanometric fraction. The conclusion was made that severe conditions of etectroexplosive powders fabrication, as well as different cooling rates of particles, can play an essential role in the deformation of their crystal lattice. In addition, we may conclude that the deformation of the crystal lattice corresponds to an energy excess stored in these nano-sized powders prepared with the wire electrical explosion technology. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t High Temperature Material Processes |d 1997- | ||
| 463 | |t Vol. 9, iss. 2 |v [P. 253-262] |d 2005 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a плазма | |
| 610 | 1 | |a электрический взрыв | |
| 700 | 1 | |a An |b V. V. |c chemist |c Professor of Tomsk Polytechnic University, Doctor of Chemical Sciences |f 1972- |g Vladimir Vilorievich |3 (RuTPU)RU\TPU\pers\33866 |9 17455 | |
| 701 | 1 | |a Ilyin |b A. P. |c chemist |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences |f 1949- |g Aleksandr Petrovich |3 (RuTPU)RU\TPU\pers\33060 |9 16894 | |
| 701 | 1 | |a De Izarra |b C. | |
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