"

Cookies ussage consent

I agree.

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

Preheating effects on the particle size and anisotropy of M-type Sr(TiMn)2Fe8O19 powders prepared by co-precipitation method

H. Y. HE1,*

Affiliation

  1. School of Material Science & Engineering, Shaanxi University of Science & Technology, (710021), China

Abstract

Ultrafine substituted M-type Sr-ferrite Sr(TiMn)2Fe8O19 powders were synthesized successfully by co-precipitation method. The hydroxide precursor particles were formed in gel solution containing ethanol and water at a ratio of 1:1 and NaOH as coprecipitation agent. The effects of preheat treatment on particle size and c/a value of Sr(TiMn)2Fe8O19 nano powders were studied using XRD and SEM. XRD analysis indicated single phase substituted M-type Sr-ferrite Sr(TiMn)2Fe8O19 were formed with and without preheat treatment. The particle sizes of the powders were very small with and without preheat treatments. Calculation of c/a value with XRD data indicated that the Ti-Mn substitution and preheat treatment induced notable change of the atomic lattice anisotropy.

Keywords

Sr(TiMn)2Fe8O19, powder, Sol-gel method, Preheat treatment, Anisotropy, Particle size.

Citation

H. Y. HE, Preheating effects on the particle size and anisotropy of M-type Sr(TiMn)2Fe8O19 powders prepared by co-precipitation method, Optoelectronics and Advanced Materials - Rapid Communications, 1, 10, October 2007, pp.503-506 (2007).

Submitted at: Aug. 7, 2007

Accepted at: Aug. 30, 2007