TY - JOUR
T1 - Improved magnetoelectric properties of piezoelectric-magnetostrictive nanocomposites synthesized using high-pressure compaction technique
AU - Bedekar, Vishwas
AU - Poudyal, Narayan
AU - Rong, Chuan Bing
AU - Liu, J. Ping
AU - Kim, Choong Un
AU - Priya, Shashank
N1 - Funding Information:
Acknowledegement The authors gratefully acknowledge the financial support from Army Research Office.
PY - 2009/4
Y1 - 2009/4
N2 - The high-compaction sintering technique of PZT-NFO (piezoelectric nickel ferrite) nano core shell structure to form a dense magnetoelectric (ME) particulate composite, was investigated. The synthesis of nickel ferrite nanoparticles was performed by standard airless chemical synthesis technique in a nitrogen atmosphere. A mixture of 1 mmol of Ni-II (acetyl acetonate) and 2 mmol of 1,2-hexadecanediol (HDD) was added to a 125-mL European flask containing a magnetic stir bar. Benzyl ether was then transferred to the flask and the contents were stirred while purging with N2 for 20 mill at room temperature. Pellets of three different schemes were pressed in a 0.25-in, die under hydraulic pressure of 2 kpsi followed by cold isostatic pressure of 30 kpsi. The grain size was found to reduce with increasing NFO concentration in the composite. It was also observed that composites corresponding to formulation 1:1 have the highest magnetoelectric coefficient, which could be related to higher resistivity and dense microstructure.
AB - The high-compaction sintering technique of PZT-NFO (piezoelectric nickel ferrite) nano core shell structure to form a dense magnetoelectric (ME) particulate composite, was investigated. The synthesis of nickel ferrite nanoparticles was performed by standard airless chemical synthesis technique in a nitrogen atmosphere. A mixture of 1 mmol of Ni-II (acetyl acetonate) and 2 mmol of 1,2-hexadecanediol (HDD) was added to a 125-mL European flask containing a magnetic stir bar. Benzyl ether was then transferred to the flask and the contents were stirred while purging with N2 for 20 mill at room temperature. Pellets of three different schemes were pressed in a 0.25-in, die under hydraulic pressure of 2 kpsi followed by cold isostatic pressure of 30 kpsi. The grain size was found to reduce with increasing NFO concentration in the composite. It was also observed that composites corresponding to formulation 1:1 have the highest magnetoelectric coefficient, which could be related to higher resistivity and dense microstructure.
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U2 - 10.1007/s10853-009-3370-6
DO - 10.1007/s10853-009-3370-6
M3 - Article
AN - SCOPUS:62949088132
SN - 0022-2461
VL - 44
SP - 2162
EP - 2166
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 8
ER -