Studies on the thermal stability of nanosized powder of WC1-x-based product prepared by plasma dynamic method, compaction feasibility of the powder and preparation of composite with aluminium; Ceramics International; Vol. 47, iss. 5
| Parent link: | Ceramics International Vol. 47, iss. 5.— 2021.— [P. 6884-6895] |
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| Autor corporatiu: | |
| Altres autors: | , , , , , , , |
| Sumari: | Title screen Obtaining ceramics and composites based on cubic tungsten carbide WC1-x requires knowledge of its thermal behavior, which is poorly studied now. The paper presents the results of a thermal analysis of the nanosized WC1-x-based product with the stoichiometry of WC0.72-0.74 synthesized by a plasma dynamic method. Taking into account the known literature data on the structure of WC1-x products, an investigation of synthesized nanoparticles allows us to conclude that WC1-x cannot exist without a crystalline graphite shell and/or an amorphous carbon matrix. Similarly, the destruction of both carbon shells and a matrix leads to either quick oxidation of WC1-x to WO3 when heated in air or the phase transition WC1-x ? WC when heated in vacuum. The thermal analysis shows WC1-x is stable up to 550 °C in air and up to 1200 °C in vacuum and argon. The obtained data made it possible to formulate recommendations for preserving WC1-x material in bulk specimens when compacting from the dispersed powder. The preparation of binderless ceramics from the WC1-x-based product by the SPS method seems to be impossible due to carbon diffusion during the sintering process, while the use of WC1-x-based products as a reinforcing additive to a metal (Al) matrix seems to be the only way to preserve this crystalline phase in a bulk form at the present time. Режим доступа: по договору с организацией-держателем ресурса |
| Idioma: | anglès |
| Publicat: |
2021
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| Matèries: | |
| Accés en línia: | https://doi.org/10.1016/j.ceramint.2020.11.035 |
| Format: | Electrònic Capítol de llibre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663403 |
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| 200 | 1 | |a Studies on the thermal stability of nanosized powder of WC1-x-based product prepared by plasma dynamic method, compaction feasibility of the powder and preparation of composite with aluminium |f I. I. Shanenkov, D. S. Nikitin, A. S. Ivashutenko [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 43 tit.] | ||
| 330 | |a Obtaining ceramics and composites based on cubic tungsten carbide WC1-x requires knowledge of its thermal behavior, which is poorly studied now. The paper presents the results of a thermal analysis of the nanosized WC1-x-based product with the stoichiometry of WC0.72-0.74 synthesized by a plasma dynamic method. Taking into account the known literature data on the structure of WC1-x products, an investigation of synthesized nanoparticles allows us to conclude that WC1-x cannot exist without a crystalline graphite shell and/or an amorphous carbon matrix. Similarly, the destruction of both carbon shells and a matrix leads to either quick oxidation of WC1-x to WO3 when heated in air or the phase transition WC1-x ? WC when heated in vacuum. The thermal analysis shows WC1-x is stable up to 550 °C in air and up to 1200 °C in vacuum and argon. The obtained data made it possible to formulate recommendations for preserving WC1-x material in bulk specimens when compacting from the dispersed powder. The preparation of binderless ceramics from the WC1-x-based product by the SPS method seems to be impossible due to carbon diffusion during the sintering process, while the use of WC1-x-based products as a reinforcing additive to a metal (Al) matrix seems to be the only way to preserve this crystalline phase in a bulk form at the present time. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Ceramics International | ||
| 463 | |t Vol. 47, iss. 5 |v [P. 6884-6895] |d 2021 | ||
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| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a cubic tungsten carbide | |
| 610 | 1 | |a nanocomposites | |
| 610 | 1 | |a thermal properties | |
| 610 | 1 | |a spark plasma sintering | |
| 610 | 1 | |a карбид вольфрама | |
| 610 | 1 | |a нанокомпозиты | |
| 610 | 1 | |a тепловые свойства | |
| 610 | 1 | |a плазменное спекание | |
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| 701 | 1 | |a Ivashutenko |b A. S. |c specialist in the field of electrical engineering |c Associate Professor of the Tomsk Polytechnic University, Candidate of technical sciences |f 1981- |g Alexander Sergeevich |3 (RuTPU)RU\TPU\pers\33076 |9 16908 | |
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