New aqueous magnetic fluids

✍ Scribed by D. Zins; V. Cabuil; R. Massart

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 629 KB
• Volume: 83
• Category: Article
• ISSN: 0167-7322
• DOI: 10.1016/s0167-7322(99)00087-2

✦ Synopsis

New aqueous magnetic fluids constituted of nickel-zinc ferrite particles are synthesized using a soft chemical approach. Ferrofluids and solid particles are characterized using several techniques : chemical analysis, X-ray diffraction, transmission electron microscopy, infrared spectroscopy, and magnetization measurements.

The stability of the aqueous magnetic fluids is studied as a function of pH and their magnetization is measured as a function of the degree of zinc substitution in the mixed ferrite particles.