Preparation and Properties of Stable Magnetic Fluid Using Mn Substituted Ferrite Particles

✍ Scribed by G.M. Sutariya; R.V. Upadhyay; R.V. Mehta

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 140 KB
• Volume: 155
• Category: Article
• ISSN: 0021-9797
• DOI: 10.1006/jcis.1993.1020

✦ Synopsis

Ultrafine particles of (\mathrm{Mn}) substituted (\mathrm{Fe}{3} \mathrm{O}{4}) were synthesized using coprecipitation technique. Particles were coated with oleic acid and colloidally dispersed in kerosene. Magnetic and rheological properties of this magnetic fluid are reported. Results suggest that with substitution of (10 % \mathrm{Mn}) in (\mathrm{Fe}{3} \mathrm{O}{4}) it is possible to synthesize a low viscosity ( (6 \mathrm{cP}) ), high magnetization fluid ( 500 G). 1993 Academic Press, Inc.