Influence of stoichiometry on the oxidation behavior and mechanical properties of hafnium carbonitride ceramics; Ceramics International; Vol. 52, iss. 9
| Parent link: | Ceramics International.— .— Amsterdam: Elsevier Science Publishing Company Inc. Vol. 52, iss. 9.— 2026.— P. 11270-11280 |
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| Outros Autores: | , , , |
| Resumo: | Title screen HfCN ceramics were produced using commercial hafnium carbide and hafnium nitride powders via spark plasma sintering at 2000 °C. By varying the ratios of the starting powders, samples with varying HfCxNy stoichiometry were obtained. Hafnium carbonitride formation was determined to begin at 1347 °C. An increase in the C/(C + N) ratio resulted in an increase in the mechanical properties of the materials, achieving the following values: hardness of 22.3 GPa, Young's modulus of 488 GPa, strength of 683 MPa, and fracture toughness of 7.4 MPa∙m1/2. A study of the oxidative behavior of the materials revealed that an increase in the carbon content in the samples also increased their oxidation resistance. The samples withstand oxidation at 1200 °C for 1 h with Δm/ΔS not exceeding 160 g/cm2. After oxidation, a dense oxide film 170–470 μm thick forms on the surface of the samples. This film consists of a monoclinic modification of hafnium dioxide containing carbon and nitrogen atoms diffused from the material matrix Текстовый файл AM_Agreement |
| Idioma: | inglês |
| Publicado em: |
2026
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| Assuntos: | |
| Acesso em linha: | https://doi.org/10.1016/j.ceramint.2026.01.289 |
| Formato: | Recurso Electrónico Capítulo de Livro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=686483 |
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| 200 | 1 | |a Influence of stoichiometry on the oxidation behavior and mechanical properties of hafnium carbonitride ceramics |f Egor Kuzmenko, Sergey Matrenin, Artur Nassyrbayev, Alexander Ditts | |
| 203 | |a Текст |b визуальный |c электронный | ||
| 283 | |a online_resource |2 RDAcarrier | ||
| 300 | |a Title screen | ||
| 320 | |a References: 62 tit | ||
| 330 | |a HfCN ceramics were produced using commercial hafnium carbide and hafnium nitride powders via spark plasma sintering at 2000 °C. By varying the ratios of the starting powders, samples with varying HfCxNy stoichiometry were obtained. Hafnium carbonitride formation was determined to begin at 1347 °C. An increase in the C/(C + N) ratio resulted in an increase in the mechanical properties of the materials, achieving the following values: hardness of 22.3 GPa, Young's modulus of 488 GPa, strength of 683 MPa, and fracture toughness of 7.4 MPa∙m1/2. A study of the oxidative behavior of the materials revealed that an increase in the carbon content in the samples also increased their oxidation resistance. The samples withstand oxidation at 1200 °C for 1 h with Δm/ΔS not exceeding 160 g/cm2. After oxidation, a dense oxide film 170–470 μm thick forms on the surface of the samples. This film consists of a monoclinic modification of hafnium dioxide containing carbon and nitrogen atoms diffused from the material matrix | ||
| 336 | |a Текстовый файл | ||
| 371 | 0 | |a AM_Agreement | |
| 461 | 1 | |t Ceramics International |c Amsterdam |n Elsevier Science Publishing Company Inc. | |
| 463 | 1 | |t Vol. 52, iss. 9 |v P. 11270-11280 |d 2026 | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a Hafnium carbonitride | |
| 610 | 1 | |a Oxidation resistance | |
| 610 | 1 | |a Mechanical properties | |
| 610 | 1 | |a Spark plasma sintering | |
| 610 | 1 | |a C/N ratio | |
| 701 | 1 | |a Kuzmenko |b E. D. |c specialist in the field of material science |c engineer of Tomsk Polytechnic University |f 2001- |g Egor Dmitrievich |9 89026 | |
| 701 | 1 | |a Matrenin |b S. V. |c specialist in the field of material science |c Associate Professor of Tomsk Polytechnic University, Candidate of technical sciences |f 1964- |g Sergey Veniaminovich |9 17996 | |
| 701 | 1 | |a Nassyrbayev (Nasyrbaev) |b A. |c Specialist in the field of electric power engineering |c Research Engineer of Tomsk Polytechnic University |f 1998- |g Artur |9 22370 | |
| 701 | 1 | |a Ditts |b A. A. |c Chemical Engineer |c Associate Professor of Tomsk Polytechnic University, Candidate of technical science |f 1981- |g Aleksander Andreevich |9 15448 | |
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