Lithium concentration effect on crystallization kinetics and spectral properties of Cr-doped Li2O-K2O-Al2O3-B2O3 glass-ceramics
| Parent link: | Ceramics International Vol. 49, iss. 12.— 2023.— [P. 20061-20070] |
|---|---|
| Autor corporatiu: | |
| Altres autors: | , , , , , , , , |
| Sumari: | Title screen Alkali-aluminaborate glass-ceramics doped with Cr ions are synthesized by volume crystallization. According to non-isothermal DSC method three parallel processes occur in material: 2D Avrami-Yerofeev nucleation, 2D and 3D crystallization. During the heat treatment, the LiAl7B4O17 crystalline phase is formed. With Li2O content rising crystallinity of the material increases from 27 to 69% and the crystalline field strength Dq/B of Cr3+ increases from 2.25 to 3.55. The photoluminescence spectra possess intense bands at 685, 700, and 715 nm for glass with 6.8 mol.% Li2O and higher and its decay kinetics is described by the sum of two exponentials. The maximum luminescence QY obtained is 50% at 16.1 mol.% Li2O. The highest conversion efficiency of the 532 nm LED luminescence obtained by glass-ceramics with chromium is 10%. Thus, Cr-doped alkali-alumina-borate glass-ceramics are a promising material for use in the design of radiation sources for the red and NIR spectral regions. Режим доступа: по договору с организацией-держателем ресурса |
| Idioma: | anglès |
| Publicat: |
2023
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| Matèries: | |
| Accés en línia: | https://doi.org/10.1016/j.ceramint.2023.03.129 |
| Format: | Electrònic Capítol de llibre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=669337 |
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| 200 | 1 | |a Lithium concentration effect on crystallization kinetics and spectral properties of Cr-doped Li2O-K2O-Al2O3-B2O3 glass-ceramics |f E. Kulpina, A. Babkina, K. Zyryanova [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 51 tit.] | ||
| 330 | |a Alkali-aluminaborate glass-ceramics doped with Cr ions are synthesized by volume crystallization. According to non-isothermal DSC method three parallel processes occur in material: 2D Avrami-Yerofeev nucleation, 2D and 3D crystallization. During the heat treatment, the LiAl7B4O17 crystalline phase is formed. With Li2O content rising crystallinity of the material increases from 27 to 69% and the crystalline field strength Dq/B of Cr3+ increases from 2.25 to 3.55. The photoluminescence spectra possess intense bands at 685, 700, and 715 nm for glass with 6.8 mol.% Li2O and higher and its decay kinetics is described by the sum of two exponentials. The maximum luminescence QY obtained is 50% at 16.1 mol.% Li2O. The highest conversion efficiency of the 532 nm LED luminescence obtained by glass-ceramics with chromium is 10%. Thus, Cr-doped alkali-alumina-borate glass-ceramics are a promising material for use in the design of radiation sources for the red and NIR spectral regions. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Ceramics International | ||
| 463 | |t Vol. 49, iss. 12 |v [P. 20061-20070] |d 2023 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a alkali-alumina-borate glass | |
| 610 | 1 | |a luminescent glass-ceramics | |
| 610 | 1 | |a trivalent chromium ions | |
| 610 | 1 | |a Avrami parameter | |
| 610 | 1 | |a crystallization kinetics | |
| 610 | 1 | |a activation energy | |
| 610 | 1 | |a red radiation source | |
| 610 | 1 | |a щелочно-глиноземно-боратное стекло | |
| 610 | 1 | |a стеклокерамика | |
| 610 | 1 | |a трехвалентный хром | |
| 610 | 1 | |a кристаллизация | |
| 610 | 1 | |a источники излучений | |
| 701 | 1 | |a Kulpina |b E. |g Ekaterina | |
| 701 | 1 | |a Babkina |b A. |g Anastasiia | |
| 701 | 1 | |a Zyryanova |b K. |g Ksenia | |
| 701 | 1 | |a Valiev |b D. T. |c specialist in the field of material science |c Associate Professor of Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences |f 1987- |g Damir Talgatovich |3 (RuTPU)RU\TPU\pers\33772 |9 17370 | |
| 701 | 1 | |a Stepanov |b S. A. |c specialist in the field of lightning engineering |c Engineer of Tomsk Polytechnic University |f 1986- |g Sergey Aleksandrovich |3 (RuTPU)RU\TPU\pers\33771 |9 17369 | |
| 701 | 1 | |a Nuryev |b R. |g Rustam | |
| 701 | 1 | |a Ignatiev |b A. |g Alexander | |
| 701 | 1 | |a Zhizhin |b E. |g Evgeny | |
| 701 | 1 | |a Koroleva |b A. |g Aleksandra | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа новых производственных технологий |b Отделение материаловедения |3 (RuTPU)RU\TPU\col\23508 |
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| 856 | 4 | |u https://doi.org/10.1016/j.ceramint.2023.03.129 | |
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