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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

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Journal Article

Journal Article

Enhancement of dielectric, ferroelectric and magneto-dielectric properties in PVDF–BaFe₁₂O₁₉ composites: a step towards miniaturizated electronic devices  [2016]

Anithakumari, P.; Mandal, B. P.; Abdelhamid, Ehab; Naik, R.; et al.

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Highly flexible inorganic–organic composite films of barium hexaferrite (BHF) nanoparticles and a polyvinylidene fluoride (PVDF) polymer with small but appreciable magneto-dielectric coupling have been fabricated at room temperature. The films have been thoroughly characterized by using different techniques like X-ray Diffraction (XRD), Fourier Transform Infrared spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). Coexistence of alpha and beta forms of PVDF has been established in undoped and doped PVDF. The amount of electro-active β phase of PVDF increases with an increase in filler (BHF) amount. Interestingly, dielectric permittivity of PVDF is enhanced up to eight times upon addition of the optimum amount of BHF. This increase in permittivity has been explained by the space charge polarization at the interfaces between the two phases of the composite and the formation of several micro-capacitors within the samples. The electrical and magnetic polarization measurements on the films confirm the composite materials are ferroelectric as well as ferromagnetic in nature. Subsequently, magneto-dielectric (MD) coupling measurements confirm the multiferroic nature of the composite films.
From the journal
RSC advances
ISSN : 2046-2069

Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2019
Volume:
6
Issue:
19
Extent:
16073-16080
Publisher:
The Royal Society of Chemistry
All titles:
"Enhancement of dielectric, ferroelectric and magneto-dielectric properties in PVDF–BaFe₁₂O₁₉ composites: a step towards miniaturizated electronic devices"@eng
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Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2019
Volume:
6
Issue:
19
Extent:
16073-16080
Publisher:
The Royal Society of Chemistry
All titles:
"Enhancement of dielectric, ferroelectric and magneto-dielectric properties in PVDF–BaFe₁₂O₁₉ composites: a step towards miniaturizated electronic devices"@eng