Deng, Yi and Zhang, Kewei and Yang, Yuanyi and Shi, Xiuyuan and Yang, Lei and Yang, Weizhong and Wang, Yuan and Chen, Zhi-Gang (2019) Ce/Mn dual-doped LaAlO3 ceramics with enhanced far-infrared emission capability synthesized via a facile microwave sintering method. Journal of Alloys and Compounds, 774. pp. 434-442. ISSN 0925-8388
Abstract
In this work, Ce/Mn dual-doped LaAlO3 ceramics have been synthesized via a facile microwave sintering method. From the detailed investigations of Fourier transform infrared spectroscopy, it has been found that Ce/Mn co-doping can dramatically improve the far-infrared emission capability of LaAlO3 ceramics in the range of 8–14 μm. After co-doping of Ce and Mn, Ce4+ ions in polyhedron site (A-site) induce the transformation of Mn4+ to Mn2+ in octahedron site (B-site), which causes the severe lattice distortion of the unit cell and strengthens the vibration intensities of asymmetrical Mn-O-Mn and Mn-O-Al bonds for the promotion of the far-infrared emissivity. Such dual-doped and perovskite-type LaAlO3 ceramics with excellent far-infrared emission shows great potential as a new generation of far-infrared radiation materials for energy conservation applications.
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| Item Type: | Article (Commonwealth Reporting Category C) |
|---|---|
| Refereed: | Yes |
| Item Status: | Live Archive |
| Additional Information: | Published version cannot be displayed due to copyright restrictions. |
| Faculty/School / Institute/Centre: | Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials |
| Date Deposited: | 27 May 2019 06:02 |
| Last Modified: | 30 May 2019 05:13 |
| Uncontrolled Keywords: | LaAlO3 ceramics, Perovskite-type, far-infrared emission, microwave sintering |
| Fields of Research : | 09 Engineering > 0912 Materials Engineering > 091205 Functional Materials |
| Funding Details: | |
| Identification Number or DOI: | 10.1016/j.jallcom.2018.10.049 |
| URI: | http://eprints.usq.edu.au/id/eprint/36053 |
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