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Perovskite-type multi-component aluminates exhibiting high reflectivity and excellent thermal stability.

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Title: Perovskite-type multi-component aluminates exhibiting high reflectivity and excellent thermal stability.
Authors: Lei, Zijian1,2 (AUTHOR), Zou, Yang2 (AUTHOR), Zhao, Lili1,2 (AUTHOR) zll@mail.sic.ac.cn, Wang, Nan2,3 (AUTHOR), Zhang, Liangmiao1 (AUTHOR) lmzhang@shu.edu.cn
Source: Ceramics International. May2026:Part B, Vol. 52 Issue 12, p20597-20605. 9p.
Subjects: Laser damage, Optical reflection, Oxide ceramics, Ceramic materials, Thermal stability
Abstract: The demanding performance requirements for materials in extreme light-thermal coupling environments are driving the need for ceramics that combine high reflectivity with exceptional thermal stability for laser protection. In this study, two novel multi-component aluminates with a perovskite structure (space group C 2/ c) were designed and synthesized: La 0.5 Gd 0.5 AlO 3 (LGAO) and (La 1/3 Y 1/3 Gd 1/3)AlO 3 (LYGAO). These materials exhibit high reflectivity across the visible and near-infrared spectra, notably achieving over 98.7% at 1050 nm. Compared to the conventional LaAlO 3 (LAO), both LGAO and LYGAO demonstrate superior reflectivity and thermal stability at elevated temperatures. Crucially, they also show a substantially superior laser protection performance. Under laser irradiation at 2500 W/cm2, LGAO and LYGAO withstood 22 s and 26 s before failure, respectively, significantly outperforming LAO, which failed after only 9 s. This study shows that LGAO and LYGAO materials have wide application potential in the field of laser protection materials. [ABSTRACT FROM AUTHOR]
Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 193120080
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  Data: Perovskite-type multi-component aluminates exhibiting high reflectivity and excellent thermal stability.
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  Data: <searchLink fieldCode="AR" term="%22Lei%2C+Zijian%22">Lei, Zijian</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zou%2C+Yang%22">Zou, Yang</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhao%2C+Lili%22">Zhao, Lili</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> zll@mail.sic.ac.cn</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Nan%22">Wang, Nan</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Liangmiao%22">Zhang, Liangmiao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> lmzhang@shu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Ceramics+International%22">Ceramics International</searchLink>. May2026:Part B, Vol. 52 Issue 12, p20597-20605. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Laser+damage%22">Laser damage</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+reflection%22">Optical reflection</searchLink><br /><searchLink fieldCode="DE" term="%22Oxide+ceramics%22">Oxide ceramics</searchLink><br /><searchLink fieldCode="DE" term="%22Ceramic+materials%22">Ceramic materials</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+stability%22">Thermal stability</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The demanding performance requirements for materials in extreme light-thermal coupling environments are driving the need for ceramics that combine high reflectivity with exceptional thermal stability for laser protection. In this study, two novel multi-component aluminates with a perovskite structure (space group C 2/ c) were designed and synthesized: La 0.5 Gd 0.5 AlO 3 (LGAO) and (La 1/3 Y 1/3 Gd 1/3)AlO 3 (LYGAO). These materials exhibit high reflectivity across the visible and near-infrared spectra, notably achieving over 98.7% at 1050 nm. Compared to the conventional LaAlO 3 (LAO), both LGAO and LYGAO demonstrate superior reflectivity and thermal stability at elevated temperatures. Crucially, they also show a substantially superior laser protection performance. Under laser irradiation at 2500 W/cm2, LGAO and LYGAO withstood 22 s and 26 s before failure, respectively, significantly outperforming LAO, which failed after only 9 s. This study shows that LGAO and LYGAO materials have wide application potential in the field of laser protection materials. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.ceramint.2026.03.151
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      – Code: eng
        Text: English
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        Type: general
      – SubjectFull: Optical reflection
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      – SubjectFull: Oxide ceramics
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      – SubjectFull: Ceramic materials
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      – SubjectFull: Thermal stability
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              Text: May2026:Part B
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              Y: 2026
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