Document Detail


Chemical methodologies for preparation of micron and nanometer scale ferrites--a mini review of patents.
MedLine Citation:
PMID:  19076039     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Ferrites, with wide range of chemical compositions, have been studied extensively over the years as they have a plethora of applications such as magnetic read/write heads, transformer cores, antennas, microwave absorbers, deflecting yoke, high frequency transformers, catalysis, pigments etc. Particles of submicron size have attracted the attention of scientists and technologists in different fields because they exhibit many unique physical properties as compared to those of bulk materials and are in great demand. Traditional high temperature solid-state method for preparation of ferrites is associated with several limitations. The quest for synthesis of ultrafine ferrite materials has led to the development of various preparative methods. Several patents disclose different wet chemical techniques namely sol-gel, coprecipitation, hydrothermal, combustion, spray pyrolysis etc for preparation of variety of ferrites for wide range of applications. In this mini-review, several patented chemical methods have been discussed critically with specific examples along with the effect of synthetic routes on particle size formation. Applications of ferrite powders with different compositions prepared by the above mentioned patented methods have also been discussed in this review.
Authors:
Prita Pant; Sundararaman Bhuvaneswari; Narendra Nath Ghosh
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Review    
Journal Detail:
Title:  Recent patents on nanotechnology     Volume:  2     ISSN:  2212-4020     ISO Abbreviation:  Recent Pat Nanotechnol     Publication Date:  2008  
Date Detail:
Created Date:  2008-12-16     Completed Date:  2009-03-16     Revised Date:  2011-11-11    
Medline Journal Info:
Nlm Unique ID:  101291922     Medline TA:  Recent Pat Nanotechnol     Country:  United Arab Emirates    
Other Details:
Languages:  eng     Pagination:  8-18     Citation Subset:  IM    
Affiliation:
Chemistry Group, Birla Institute of Technology and Science- Pilani, Goa Campus, Zuarinagar, Goa 403726, India.
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MeSH Terms
Descriptor/Qualifier:
Ferric Compounds / chemistry*
Magnetics / trends*
Nanostructures / chemistry
Nanotechnology / trends*
Patents as Topic*
Chemical
Reg. No./Substance:
0/Ferric Compounds; 1317-54-0/ferrite

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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