Aliovalent doping of La2Zr2O7 with Al³ ⁺ and Ta⁵⁺ for CTE tuning; 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, 10 p. |
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| Άλλοι συγγραφείς: | , , , , , |
| Περίληψη: | Title screen In this work, the influence of aliovalent doping with Al3 + and Ta5+ cations on the structure and thermal properties of La2Zr2O7 (LZO) was investigated and the solubility of Al3+ and Ta5+ in LZO separately and jointly was studied for the first time. The samples were synthesized by mechanochemical activation followed by sintering at 1200 °C and 1500 °C. It was established that doping maintains the pyrochlore-type structure (space group Fd m) within observed solubility limits (Al3+ up to x ≈ 0.12 and Ta5+ up to y ≈ 0.48). While the CTE of pure LZO increases with temperature (from 7.97 at 25°C to 11.50 ×10⁻⁶ °C⁻¹ at 1300°C), co-doping with Al3+ and Ta5+, specifically for the La1.96Al0.09Ta0.25Zr1.7O7.075 composition, resulted in a remarkably stable CTE (from 9.09 at 25°C to 9.82 ×10⁻⁶ °C⁻¹ at 1300°C) over a wide temperature range, a critical factor for thermal barrier coatings Текстовый файл AM_Agreement |
| Γλώσσα: | Αγγλικά |
| Έκδοση: |
2026
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| Θέματα: | |
| Διαθέσιμο Online: | https://doi.org/10.1016/j.jeurceramsoc.2026.118215 |
| Μορφή: | Ηλεκτρονική πηγή Κεφάλαιο βιβλίου |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=686254 |
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| 200 | 1 | |a Aliovalent doping of La2Zr2O7 with Al³ ⁺ and Ta⁵⁺ for CTE tuning |f A. B. Kuznetsov, S. F. Solodovnikov, D. Sagatova [et al.] | |
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| 300 | |a Title screen | ||
| 320 | |a References: 35 tit | ||
| 330 | |a In this work, the influence of aliovalent doping with Al3 + and Ta5+ cations on the structure and thermal properties of La2Zr2O7 (LZO) was investigated and the solubility of Al3+ and Ta5+ in LZO separately and jointly was studied for the first time. The samples were synthesized by mechanochemical activation followed by sintering at 1200 °C and 1500 °C. It was established that doping maintains the pyrochlore-type structure (space group Fd m) within observed solubility limits (Al3+ up to x ≈ 0.12 and Ta5+ up to y ≈ 0.48). While the CTE of pure LZO increases with temperature (from 7.97 at 25°C to 11.50 ×10⁻⁶ °C⁻¹ at 1300°C), co-doping with Al3+ and Ta5+, specifically for the La1.96Al0.09Ta0.25Zr1.7O7.075 composition, resulted in a remarkably stable CTE (from 9.09 at 25°C to 9.82 ×10⁻⁶ °C⁻¹ at 1300°C) over a wide temperature range, a critical factor for thermal barrier coatings | ||
| 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, 10 p. |d 2026 | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a La₂Zr₂O₇ | |
| 610 | 1 | |a Pyrochlore | |
| 610 | 1 | |a Aliovalent doping | |
| 610 | 1 | |a CTE | |
| 610 | 1 | |a Thermal barrier coatings | |
| 701 | 1 | |a Kuznetsov |b A. V. |g Andrey Vladimirovich | |
| 701 | 1 | |a Solodovnikov |b S. F. | |
| 701 | 1 | |a Sagatova |b D. | |
| 701 | 1 | |a Klimov |b A. O. |g Andrey Olegovich | |
| 701 | 1 | |a Abramov |b P. A. |c chemist |c professor, senior researcher at Tomsk Polytechnic University, Doctor of Chemical Sciences |f 1985- |g Pavel Aleksandrovich |9 88582 | |
| 701 | 1 | |a Kokh |b K. A. | |
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