The effect of separating layer between reacting media and molding template on the porous structure of combustion synthesized Ni-Al intermetallics
This research focuses on identifying conditions under which porous intermetallics with a welded granular structure comprised of mm-sized spheroidal alloy elements can be directly obtained by combustion synthesis using mu m-sized metal powders as starting reagents. The heat loss of reacting medium to...
| Published in: | Materials letters Vol. 314. P. 131854 |
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| Other Authors: | , , , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Online Access: | http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001001524 Перейти в каталог НБ ТГУ |
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| 245 | 1 | 4 | |a The effect of separating layer between reacting media and molding template on the porous structure of combustion synthesized Ni-Al intermetallics |c N. Pichugin, A. Kirdyashkin, V. D. Kitler, A. Maznoy |
| 336 | |a Текст | ||
| 337 | |a электронный | ||
| 504 | |a Библиогр.: 8 назв. | ||
| 520 | 3 | |a This research focuses on identifying conditions under which porous intermetallics with a welded granular structure comprised of mm-sized spheroidal alloy elements can be directly obtained by combustion synthesis using mu m-sized metal powders as starting reagents. The heat loss of reacting medium to a molding template used to shape a powder mixture of reagents significantly reduce the size of the alloy elements in manufactured material, especially near the mixture/template interface. One possible solution to this problem is to employ a separating layer between the powder mixture and the molding template. The effect of separating layers, both chemically inert (ceramic-based) and active (cellulose-based), on the size of Ni-Al elements has been experimentally studied. It was found that notable structure modification can be achieved by using cellulose-based separating layers. The carbon-containing products released during cellulose pyrolysis interact with the reacting medium and promote the coalescence of metal melts. Changing the thickness of the cellulose-based separating layer is an easy way to control the porous structure and permeation properties of combustion synthesized Ni-Al-based intermetallics, which makes them relevant for practical application. | |
| 653 | |a пористые интерметаллиды | ||
| 653 | |a синтез горения | ||
| 653 | |a металлические порошки | ||
| 655 | 4 | |a статьи в журналах |9 885326 | |
| 700 | 1 | |a Pichugin, Nikita |9 808357 | |
| 700 | 1 | |a Kirdyashkin, A. |9 885327 | |
| 700 | 1 | |a Kitler, V. D. |9 508129 | |
| 700 | 1 | |a Maznoy, Anatoly |9 808355 | |
| 773 | 0 | |t Materials letters |d 2022 |g Vol. 314. P. 131854 |x 0167-577X | |
| 852 | 4 | |a RU-ToGU | |
| 856 | 4 | |u http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001001524 | |
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