Synthesis, structure and magnetic properties of Mn-substituted magnetite for magnetorheological materials
Year: 2024
Type: article
Abstract: Iron(II)-manganese(II) ferrite with the composition Mn0.3Fe2.7O4 was synthesized using the coprecipitation method (with various options for subsequent thermal and mechanical treatment of the precipitate). The material was studied by X-ray phase analysis, infrared spectroscopy, scanning electron microscopy and magnetometry. The powder, which was fired in argon at 740°C (8.0 h) and high-energy grinding (1.0 h) at the final stage of synthesis, is a promising functional filler for magnetorheological materials. An oil suspension based on this powder shows a high shear stress value (3500 Pa at 625 mT). In addition, this powder has a high oil absorption capacity, which ensures sedimentation stability of the suspension.
Source: Журнал неорганической химии
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4405776539