Structural and electrical properties of high-energy ball-milled NASICON type Li1.3Ti1.7Al0.3(PO4)2.9(VO4)0.1 ceramics

2011 ◽  
Vol 72 (6) ◽  
pp. 613-619 ◽  
Author(s):  
Lakshmi Vijayan ◽  
G. Govindaraj
Keyword(s):  
Electrical Properties ◽  
High Energy ◽  
Nasicon Type ◽  
Structural And Electrical Properties ◽  
Energy Ball

scholarly journals Structural and Electrical Properties of Zn1-xCrxO NTCR Nanoceramics Synthesized by High Energy Ball Milling

2021 ◽  
Author(s):  
Bikram Keshari Das ◽  
Tanushree Das ◽  
Kajal Parashar ◽  
S.K.S Parashar ◽  
Rajeev Kumar ◽  
...  
Keyword(s):  
Particle Size ◽  
Electrical Properties ◽  
Ball Milling ◽  
Structural Parameters ◽  
High Energy ◽  
High Energy Ball Milling ◽  
High Frequency Region ◽  
Structural And Electrical Properties ◽  
Energy Ball ◽  
Doped Zno

Abstract Cr doped ZnO (x = 0-0.04) nanoceramics was successfully synthesized by high energy ball milling (HEBM) technique. The structural and electrical properties of the synthesized sample has been studied in detail. The doping of Cr into ZnO has been verified by X-ray diffraction (XRD) and also from the variation in structural parameters. Rietveld refinement XRD pattern of calcined sample showed the hexagonal wurtzite structure and it did not induce impurity phases. From the XRD, it has been confirm that maximum result confirms that up to 4 atomic% of Cr can be doped into ZnO. The strain of the sample reduced with increase in particle size. After sintering, there is a growth of particle size of Cr doped ZnO sample. The impedance spectroscopy data shows a single semicircle in the high frequency region corresponding to the bulk properties of the nanoceramic sample. The decrease in real part of the impedance with temperature suggests the NTCR behavior of the sample in the temperature range of 300-500 ºC. The temperature dependent relaxation phenomena are also observed for the synthesized ceramic sample at high temperature. Distributed relaxation time suggests that the relaxation in the synthesized samples is of non-Debye type. The equivalent electrical circuit of the semicircular pattern in the impedance spectrum of ZnO and Zn1-xCrxO nanoceramics sample is a parallel combination of bulk resistance (Rb) and bulk capacitance (Cb).

Electrical properties and microstructure of Y-doped BaTiO3 ceramics prepared by high-energy ball-milling

2008 ◽  
Vol 34 (7) ◽  
pp. 1573-1577 ◽  
Author(s):  
K. Park ◽  
J.-G. Kim ◽  
K.-J. Lee ◽  
W.S. Cho ◽  
W.S. Hwang
Keyword(s):  
Electrical Properties ◽  
Ball Milling ◽  
High Energy ◽  
High Energy Ball Milling ◽  
Energy Ball

High Frequency Electrical Properties of Fe/SiO2 Composites by Pressureless Sinter

2017 ◽  
Vol 727 ◽  
pp. 257-261 ◽  
Author(s):  
Pei Tao Xie ◽  
Zhong Yang Wang ◽  
Run Hua Fan ◽  
Lei Qian ◽  
Guo Hua Fan
Keyword(s):  
Electrical Properties ◽  
Ac Conductivity ◽  
Blue Shift ◽  
High Energy ◽  
Pressureless Sinter ◽  
Dielectric Relaxations ◽  
Fe Content ◽  
Conduction Behavior ◽  
Energy Ball ◽  
Reductive Atmosphere

In this paper, Fe/SiO2 composites with different Fe content were prepared through pressureless sinter in weakly reductive atmosphere after high energy ball milling. The electrical properties including ac conductivity, permittivity were investigated in detail. The results showed that the frequency dispersions of ac conductivity follow the power law, indicating the hoping conduction behavior. The real part of permittivity for composites increased with higher Fe content, which was attributed to the more interface between Fe and SiO2. Besides, Debye-like dielectric relaxations were observed, and the Debye-like loss peak appeared blue shift as increasing the Fe content.

scholarly journals Study of the Structural, Morphological and Electrical Properties of WO3 Nanopowders which Use as Gas Sensors

2015 ◽  
Vol 60 ◽  
pp. 107-112
Author(s):  
Malek Ali ◽  
Mayada Hbous
Keyword(s):  
Crystal Structure ◽  
Electrical Properties ◽  
Surface Morphology ◽  
Gas Sensors ◽  
High Energy ◽  
X Ray Diffraction ◽  
Mill Time ◽  
Methanol Vapor ◽  
Structure Surface ◽  
Energy Ball

nanopowders of tungsten oxide (WO3) have been prepared by high energy ball-milling for various spans of mill time (1-18 h). The crystal structure, surface morphology of the prepared WO3 nanopowder were characterized by X-ray diffraction and scanning electron microscope. Thick films of WO3 nanopowders were prepared by printing painting chemical method to use them as gas sensors for methanol vapor at different operating temperatures, Their I-V characteristics were studied by using devices KEITHLEY 237. The effect of the milling time on the crystal structure, surface morphology, and electrical properties are reported.

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