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Open AccessArticle

Preparation of Micro-Patterned CaMn7O12 Ceramic Films via a Photosensitive Sol-Gel Method

1
School of Materials Science and Engineering, Xi’an University of Technology, Xi’an 710048, China
2
School of Biological and Chemical Engineering, Panzhihua University, Panzhihua 617000, China
3
College of Vanadium and Titanium, Panzhihua University, Panzhihua 617000, China
*
Authors to whom correspondence should be addressed.
Coatings 2019, 9(10), 650; https://doi.org/10.3390/coatings9100650
Received: 24 August 2019 / Revised: 30 September 2019 / Accepted: 8 October 2019 / Published: 9 October 2019
Mn/acetylacetone chelate was synthesized using Mn(CH3COO)2·4H2O as raw material, methanol as the solvent, and acetylacetone as the chelating agent. The ultraviolet (UV)-absorption peak of the synthesized chelate was found around 298 nm. CaMn7O12 sol was subsequently prepared using the Mn/AcAc chelate as the Mn source and calcium nitrate as the calcium source. The UV test indicates that the CaMn7O12 sol has the UV-sensitive characteristics. Owing to its photo-sensitivity, micro-patterned CaMn7O12 ceramic film can be prepared without photoresist, only through dip-coating, drying, UV-irradiation, solvent-washing, and heat treatment. The magnetic test result indicates that the micro-patterned CaMn7O12 ceramic film has a saturation magnetization of 112.8 emu/cm3, which is close to that of non-patterned CaMn7O12 ceramic film.
Keywords: CaMn7O12; multiferroic film; micro-pattern; sol-gel CaMn7O12; multiferroic film; micro-pattern; sol-gel
MDPI and ACS Style

Wang, Y.; Zhao, G.; Wu, C.; Duan, Z. Preparation of Micro-Patterned CaMn7O12 Ceramic Films via a Photosensitive Sol-Gel Method. Coatings 2019, 9, 650.

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