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Crystallization of 𝑀-type hexagonal ferrites from mechanically activated mixtures of barium carbonate and goethite
J Temuujin M Aoyama M Senna T Masuko C Ando H Kishi A Minjigmaa
Ceramics and Glasses Volume 29 Issue 5 October 2006 pp 457-460
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https://www.ias.ac.in/article/fulltext/boms/029/05/0457-0460 -
Keywords
𝑀-type hexagonal ferrite ;mechanical activation ;powder ;crystallization. -
Abstract
𝑀-type hexagonal ferrite precursor was prepared by a soft mechanochemical treatment of BaCO3 and 𝛼-FeOOH mixtures. The effect of milling on its structure and thermal behaviour was examined by XRD, SEM and FTIR. Well crystallized 𝑀-type hexagonal ferrite was formed from just 1 h milled precursors at 800°C. The beneficial effect of milling was explained in terms of increased homogeneity with simultaneous hetero bridging bond formation between powder constituents.
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Author Affiliations
J Temuujin1 2 M Aoyama2 M Senna2 T Masuko3 C Ando3 H Kishi3 A Minjigmaa1
- Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences, Ulaanbaatar 51, Mongolia
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Yokohama 223-8522, Japan
- Materials Research and Development Division, General Research and Development Laboratories, Taiyo Yuden Co. Ltd., 5607-2 Nakamuroda, Gunma 370-3347, Japan
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Dates
- Published
- October 2006
- Manuscript received
- 16 May 2006
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Bulletin of Materials Science
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