Boron carbide B4C ceramics with enhanced physico-mechanical properties sintered from multimodal powder of plasma dynamic synthesis
| Parent link: | International Journal of Refractory Metals and Hard Materials Vol. 78.— 2019.— [P. 85-91] |
|---|---|
| Institution som forfatter: | |
| Andre forfattere: | , , , |
| Summary: | Title screen Boron carbide B4C as one of the hardest materials known is of a great scientific interest for years due to a unique combination of different useful properties. The ceramics on its basis has many prospective applications. However, the widespread usage of this ceramics is limited due to the relatively low fracture toughness as well as the poor sinterability. This work shows the possibility to obtain the ceramics with enhanced physico-mechanical properties based on the powdered boron carbide B4C prepared by a plasma dynamic method. The key features of this powdered material are a single-crystalline particle structure and their multimodal distribution from several nanometers to several micrometers that is confirmed by the results of both scanning and transmission electron microscopy. Sintering the ceramics based on the as-prepared B4C powder by SPS technology at the temperature of 1950?°C, pressure of 60?MPa and time exposure of 5?min allows not only achieving the expected values of ceramics density (~99% relative to the theoretical one) but also the high hardness (~37?GPa) and fracture toughness (6.7?±?0.3?MPa·m1/2). Режим доступа: по договору с организацией-держателем ресурса |
| Sprog: | engelsk |
| Udgivet: |
2019
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| Fag: | |
| Online adgang: | https://doi.org/10.1016/j.ijrmhm.2018.09.003 |
| Format: | Electronisk Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=658616 |
MARC
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| 200 | 1 | |a Boron carbide B4C ceramics with enhanced physico-mechanical properties sintered from multimodal powder of plasma dynamic synthesis |f A. A. Sivkov [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: p. 90-91 (39 tit.)] | ||
| 330 | |a Boron carbide B4C as one of the hardest materials known is of a great scientific interest for years due to a unique combination of different useful properties. The ceramics on its basis has many prospective applications. However, the widespread usage of this ceramics is limited due to the relatively low fracture toughness as well as the poor sinterability. This work shows the possibility to obtain the ceramics with enhanced physico-mechanical properties based on the powdered boron carbide B4C prepared by a plasma dynamic method. The key features of this powdered material are a single-crystalline particle structure and their multimodal distribution from several nanometers to several micrometers that is confirmed by the results of both scanning and transmission electron microscopy. Sintering the ceramics based on the as-prepared B4C powder by SPS technology at the temperature of 1950?°C, pressure of 60?MPa and time exposure of 5?min allows not only achieving the expected values of ceramics density (~99% relative to the theoretical one) but also the high hardness (~37?GPa) and fracture toughness (6.7?±?0.3?MPa·m1/2). | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | 1 | |t International Journal of Refractory Metals and Hard Materials | |
| 463 | 1 | |t Vol. 78 |v [P. 85-91] |d 2019 | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a boron carbide B4C | |
| 610 | 1 | |a plasma dynamic synthesis | |
| 610 | 1 | |a multimodal powder | |
| 610 | 1 | |a ceramics | |
| 610 | 1 | |a physico-mechanical properties | |
| 610 | 1 | |a карбид бора | |
| 610 | 1 | |a синтез | |
| 610 | 1 | |a керамика | |
| 610 | 1 | |a физико-механические свойства | |
| 701 | 1 | |a Sivkov |b A. A. |c Specialist in the field of electric power engineering |c Professor of Tomsk Polytechnic University, Doctor of technical sciences |f 1951- |g Aleksandr Anatolyevich |3 (RuTPU)RU\TPU\pers\32273 |9 16262 | |
| 701 | 1 | |a Rakhmatullin |b I. A. |c specialist in the field of electric power engineering |c Assistant of Tomsk Polytechnic University |f 1986- |g Ilyas Aminovich |3 (RuTPU)RU\TPU\pers\33004 | |
| 701 | 1 | |a Shanenkov |b I. I. |c specialist in the field of electric power engineering |c Associate Professor of the Department of Tomsk Polytechnic University, Candidate of Sciences |f 1990- |g Ivan Igorevich |3 (RuTPU)RU\TPU\pers\32880 |9 16728 | |
| 701 | 1 | |a Shanenkova |b Yu. L. |c specialist in the field of electric power engineering |c Associate Professor of Tomsk Polytechnic University, Candidate of Technical Sciences |f 1991- |g Yuliya Leonidovna |3 (RuTPU)RU\TPU\pers\34119 |9 17659 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа энергетики |b Отделение электроэнергетики и электротехники (ОЭЭ) |3 (RuTPU)RU\TPU\col\23505 |
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