X-Ray and Thermogravimetric Analyzes of Mechanically Activated Nickel Ferrites
| Parent link: | Materials Science Forum: Scientific Journal Vol. 970 : Modern Problems in Materials Processing, Manufacturing, Testing and Quality Assurance II.— 2019.— [P. 17-23] |
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| Other Authors: | , , , |
| Summary: | Title screen This article shows a study of the effect of mechanical activation of the initial mixture of reagents NiO and Fe[2]O[3] at different speeds of grinding bowl rotation on synthesis of nickel ferrite. Nickel ferrite was produced by the solid-phase synthesis at a temperature of 900 °C for 240 minutes. The obtained ferrite samples were investigated by thermal gravimetric and X-ray phase analysis. The Curie temperature values are obtained, as well as the magnitude of the change of detected instrument weight at the magnetic phase transition (ferromagnetic-paramagnetic) of nickel ferrite using thermal gravimetric curves (TG/DTG) with applied external magnetic field. Increasing of the homogeneity degree of ferrite materials with an increase in the mechanical activation rate is shown based on the data of X-ray phase analysis. The experimental results obtained from thermal, magnetic, and X-ray analyzes were compared. Режим доступа: по договору с организацией-держателем ресурса |
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2019
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| Online Access: | https://doi.org/10.4028/www.scientific.net/MSF.970.17 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=660910 |