Regulating grain growth and sintering mechanism of Si3N4 ceramics: Three effects achieved simultaneously by controlling the amount of CaF2 additive; Journal of the European Ceramic Society; Vol. 46, iss. 9
| Parent link: | Journal of the European Ceramic Society.— .— Amsterdam: Elsevier Science Publishing Company Inc. Vol. 46, iss. 9.— 2026.— Article number 118224, 11 p. |
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| その他の著者: | , , , , |
| 要約: | Title screen This study explores the regulation of grain growth and sintering mechanism of self-toughening Si3N4 simply by controlling the amount of CaF2 added. CaF2 was transformed into CaO in-situ via its reaction with SiO2 on the surface of Si3N4. This simultaneously achieved three effects: inhibiting the secondary phase CaSiO3 generated easily by direct addition of CaO; in-situ generated CaO regulates the grain growth and densification of Si3N4 with high aspect ratio; formation of CaF2-CaO low viscosity liquid phase facilitates sintering and densification process. All these can be achieved by adjusting the amount of CaF2. The reaction mechanism of CaF2 as a novel sintering additive in Si3N4 ceramics was explored for the first time through thermodynamic theoretical calculation and phase diagram. This work provides a new combination method for the design and development of easy-to-control, efficient and cost-effective sintering additives for Si3N4 and other high temperature ceramics Текстовый файл AM_Agreement |
| 言語: | 英語 |
| 出版事項: |
2026
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| 主題: | |
| オンライン･アクセス: | https://doi.org/10.1016/j.jeurceramsoc.2026.118224 |
| フォーマット: | 電子媒体 図書の章 |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=685082 |
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| 200 | 1 | |a Regulating grain growth and sintering mechanism of Si3N4 ceramics: Three effects achieved simultaneously by controlling the amount of CaF2 additive |f Wei Ning, Xinxin Cao, Guifang Han [et al.] | |
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| 300 | |a Title screen | ||
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| 330 | |a This study explores the regulation of grain growth and sintering mechanism of self-toughening Si3N4 simply by controlling the amount of CaF2 added. CaF2 was transformed into CaO in-situ via its reaction with SiO2 on the surface of Si3N4. This simultaneously achieved three effects: inhibiting the secondary phase CaSiO3 generated easily by direct addition of CaO; in-situ generated CaO regulates the grain growth and densification of Si3N4 with high aspect ratio; formation of CaF2-CaO low viscosity liquid phase facilitates sintering and densification process. All these can be achieved by adjusting the amount of CaF2. The reaction mechanism of CaF2 as a novel sintering additive in Si3N4 ceramics was explored for the first time through thermodynamic theoretical calculation and phase diagram. This work provides a new combination method for the design and development of easy-to-control, efficient and cost-effective sintering additives for Si3N4 and other high temperature ceramics | ||
| 336 | |a Текстовый файл | ||
| 371 | 0 | |a AM_Agreement | |
| 461 | 1 | |t Journal of the European Ceramic Society |c Amsterdam |n Elsevier Science Publishing Company Inc. | |
| 463 | 1 | |t Vol. 46, iss. 9 |v Article number 118224, 11 p. |d 2026 | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a Si3N4 ceramics | |
| 610 | 1 | |a In-situ formation of CaO | |
| 610 | 1 | |a CaF2-CaO liquid phase | |
| 610 | 1 | |a Grain growth | |
| 610 | 1 | |a Self-toughening | |
| 701 | 0 | |a Wei Ning | |
| 701 | 0 | |a Xinxin Cao | |
| 701 | 0 | |a Guifang Han | |
| 701 | 1 | |a Kashkarov |b E. B. |c Physicist |c Associate Professor, Researcher of Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences |f 1991- |g Egor Borisovich |9 18267 | |
| 701 | 1 | |a Travitsky (Travitzky) |b N. |c specialist in the field of material science |c Professor of Tomsk Polytechnic University |f 1951- |g Nakhum |9 21540 | |
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