Electrical conductivity and dielectric loss of dehydrated karaganda coal as functions of the petrographic ingredients, mineral impurities, and metamorphism

1969 ◽  
Vol 12 (2) ◽  
pp. 228-230
Author(s):  
M. P. Tonkonogov ◽  
V. A. Veksler
Keyword(s):  
Electrical Conductivity ◽  
Dielectric Loss ◽  
Karaganda Coal

scholarly journals Synthesis of (Poly-methyl Methacrylate-lead Oxide) Nanocomposites and Studying their A.C Electrical Properties for Piezoelectric Applications

2018 ◽  
Vol 7 (4) ◽  
pp. 547-551
Author(s):  
Dalal Hassan ◽  
Ahmed Hashim
Keyword(s):  
Electrical Conductivity ◽  
Dielectric Constant ◽  
Dielectric Loss ◽  
Methyl Methacrylate ◽  
Electrical Resistance ◽  
Lead Oxide ◽  
Piezoelectric Materials ◽  
Oxide Nanoparticles ◽  
Poly Methyl Methacrylate ◽  
Increase With Increase

Piezoelectric materials have been prepared from (poly-methyl methacrylate-lead oxide) nanocomposites for electronic applications. The lead oxide nanoparticles were added to poly-methyl methacrylate by different concentrations are (4, 8, and 12) wt%. The structural and dielectric properties of nanocomposites were studied. The results showed that the dielectric constant and dielectric loss of nanocomposites decrease with increase in frequency of applied electric field. The A.C electrical conductivity increases with increase in frequency. The dielectric constant, dielectric loss and A.C electrical conductivity of poly-methyl methacrylate increase with increase in lead oxide nanoparticles concentrations. The results of pressure sensor showed that the electrical resistance of (PMMA-PbO2) nanocomposites decreases with increase in pressure.

Study of electrical conductivity and dielectric loss of polypyromellitimide at high pressure

1974 ◽  
Vol 16 (7) ◽  
pp. 1945-1950 ◽  
Author(s):  
Ye.B. Fainshtein ◽  
G.A. Lushcheikin ◽  
L.A. Igonin
Keyword(s):  
Electrical Conductivity ◽  
High Pressure ◽  
Dielectric Loss

Dielectric loss and electrical-conductivity studies on copper-doped NH4Cl crystals

Physica ◽  
1974 ◽  
Vol 77 (3) ◽  
pp. 543-556 ◽  
Author(s):  
Y.V.G.S. Murti ◽  
P.S. Prasad
Keyword(s):  
Electrical Conductivity ◽  
Dielectric Loss

scholarly journals Fabrication and studying the dielectric properties of (polystyrene-copper oxide) nanocomposites for piezoelectric application

2019 ◽  
Vol 8 (1) ◽  
pp. 52-57 ◽  
Author(s):  
Dalal Hassan ◽  
Ahmed Hashim Ah-yasari
Keyword(s):  
Electrical Conductivity ◽  
Dielectric Constant ◽  
Dielectric Properties ◽  
Electrical Properties ◽  
Dielectric Loss ◽  
Copper Oxide ◽  
Electrical Resistance ◽  
Copper Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Increase With Increase

The preparation of (polystyrene-copper oxide) nanocomposites have been investigated for piezoelectric application. The copper oxide nanoparticles were added to polystyrene by different concentrations are (0, 4, 8 and 12) wt.%. The structural and A.C electrical properties of (PS-CuO) nanocomposites were studied. The results showed that the dielectric constant and dielectric loss of (PS-CuO) nanocomposites decrease with increase in frequency. The A.C electrical conductivity increases with increase in frequency. The dielectric constant, dielectric loss and A.C electrical conductivity of polystyrene increase with increase in copper oxide nanoparticles concentrations. The results of piezoelectric application showed that the electrical resistance of (PS-CuO) nanocomposites decreases with increase in pressure.

New Fabrication (PVA-CMC -PbO) Nanocomposites Structural and Electrical Properties

2021 ◽  
Vol 19 (4) ◽  
pp. 38-46
Author(s):  
Manar S. Toman ◽  
Sameer Hassan Al-nesrawy
Keyword(s):  
Electrical Conductivity ◽  
Dielectric Constant ◽  
Electrical Properties ◽  
Dielectric Loss ◽  
Electric Field ◽  
Lead Oxide ◽  
Optical Microscope ◽  
Structural And Electrical Properties ◽  
Oxide Concentration ◽  
Structural Aspects

This paper presents the work conducted on preparing (PbO PVA-PEG) nanocomposites through adding the different weight concentrations of lead oxide (0,1,3,5,7 wt%). The structural aspects such as optical microscope, FTIR and electrical features of nanocomposites (PVA-CMC/PbO) were examined. The resulting data shows that the dielectric constant decreased along with the decline of dielectric loss, whereas the frequency value rose while applying of an electric field. As for the electrical conductivity AC, the dielectric loss and dielectric constant of all samples rose along with the increase in lead oxide concentration.

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