Enhanced infrared radiation properties of MgFe2O4 doping with in-situ generated Fe2+ by adjusting the sintering temperature and atmosphere

IF 5.8 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS Journal of The European Ceramic Society Pub Date : 2025-01-04 DOI:10.1016/j.jeurceramsoc.2025.117186

Ankang Lu , Shaobai Sang , Guangyang Wang , Qinghu Wang , Yawei Li , Heng Wang , Tianbin Zhu , Xin Wang

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Abstract

Doping with transition metal ions can effectively improve the infrared performance of spinel materials; however, the high cost restricts its large-scale industrial application. Motivated by this, MgFe₂O₄ doping with in-situ generated Fe²⁺ was prepared by adjusting the sintering conditions. The influence of various sintering temperatures and atmospheres on the Fe²⁺ content was investigated, along with the effects of different Fe²⁺ doping levels on the infrared radiation properties of MgFe₂O₄. The mechanisms of in-situ formation of Fe²⁺ and Fe²⁺ doping in enhancing the infrared radiation properties of MgFe₂O₄ were discussed. Specifically, the specimen sintered in a reducing atmosphere at 1500 ℃ has the highest Fe²⁺ content, and also exhibit the highest average infrared emissivity in the 0.8–2.5 μm and 2.5–10 μm bands, which are 0.826 and 0.849, respectively.

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来源期刊

Journal of The European Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

10.70

自引率

12.30%

发文量

863

审稿时长

35 days

期刊介绍： The Journal of the European Ceramic Society publishes the results of original research and reviews relating to ceramic materials. Papers of either an experimental or theoretical character will be welcomed on a fully international basis. The emphasis is on novel generic science concerning the relationships between processing, microstructure and properties of polycrystalline ceramics consolidated at high temperature. Papers may relate to any of the conventional categories of ceramic: structural, functional, traditional or composite. The central objective is to sustain a high standard of research quality by means of appropriate reviewing procedures.