Role of Water in Dielectric Properties of Starch Membranes

2012 ◽  
pp. 325-332
Keyword(s):  
Dielectric Properties

INFLUENCE OF La2O3 ADDITIONS ON CHEMICAL DURABILITY AND DIELECTRIC PROPERTIES OF BOROALUMINOSILICATE GLASSES

2012 ◽  
Vol 19 (06) ◽  
pp. 1250062 ◽  
Author(s):  
X. H. ZHANG ◽  
Y. L. YUE ◽  
H. T. WU
Keyword(s):  
Dielectric Properties ◽  
Chemical Durability ◽  
Tangent Loss ◽  
Frequency Range ◽  
Scanning Calorimetry ◽  
Glass Transition Temperatures ◽  
Weight Losses ◽  
Quenching Method ◽  
Scanning Electron

Boroaluminosilicate glasses containing La2O3 were prepared by the normal quenching method. The glass transition temperatures (Tg) were measured by differential scanning calorimetry (DSC). The structural role of RO was investigated by nuclear magnetic resonance (NMR). Chemical durability was evaluated by weight losses of glass samples after immersion in HC1 solution. High resolution scanning electron microscopy (HR-SEM) was used to examine the surface micrographs of corroded glass samples. The dielectric constant and tangent loss were measured in the frequency range 10–106 Hz. The results revealed that chemical durability and dielectric properties increased with increasing La2O3 content.

Role of Zn substitution on structural, magnetic and dielectric properties of Cu–Cr spinel ferrites

2016 ◽  
Vol 90 (8) ◽  
pp. 869-880 ◽  
Author(s):  
S. Anjum ◽  
H. Nazli ◽  
R. Khurram ◽  
Talat Zeeshan ◽  
S. Riaz ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Spinel Ferrites ◽  
Zn Substitution ◽  
Magnetic And Dielectric Properties ◽  
Role Of Zn

scholarly journals The Role of Fe2O3 and Light Induced on Dielectric Properties of Borosilicate Glass

2017 ◽  
Vol 846 ◽  
pp. 012007
Author(s):  
Markus Diantoro ◽  
Norma Dian Prastiwi ◽  
Ahmad Taufiq ◽  
Nurul Hidayat ◽  
Nandang Mufti ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Borosilicate Glass

Role of structure gradient region on dielectric properties in Ba(Zr,Ti)O3–KNbO3nanocomposite ceramics

2015 ◽  
Vol 54 (10S) ◽  
pp. 10NB04 ◽  
Author(s):  
Eisuke Magome ◽  
Yoshihiro Kuroiwa ◽  
Chikako Moriyoshi ◽  
Yoshinobu Hirose ◽  
Shintaro Ueno ◽  
...  
Keyword(s):  
Dielectric Properties

Role of excess PbO on the microstructure and dielectric properties of lead magnesium niobate

1995 ◽  
Vol 10 (4) ◽  
pp. 953-961 ◽  
Author(s):  
S.M. Gupta ◽  
A.R. Kulkarni
Keyword(s):  
Dielectric Properties ◽  
Pyrochlore Phase ◽  
Careful Analysis ◽  
Lead Magnesium Niobate ◽  
Second Phase ◽  
Relaxor Behavior ◽  
Magnesium Niobate ◽  
Excess Lead ◽  
Lead Magnesium

Stoichiometric and 2 wt. % excess lead oxide containing lead magnesium niobate (PMN) ceramics have been prepared by partial oxalate route. Dielectric measurements with frequency showed a typical relaxor behavior for stoichiometric PMN, while PMN with excess PbO shows a scatter in the dielectric curves at all temperatures above Tc. Under the same processing conditions, the dielectric constant (Kmax) decreases drastically from 16,300 to 9500 at 1 KHz for PMN without and with excess PbO, respectively. Microstructure studies revealed a second phase (unreacted PbO) segregated in the grain boundaries for excess PbO samples. A careful analysis of the data on dielectric properties and phases present coupled with microstructural detail indicate that the second phase in the grain boundary has a pronounced effect on the dielectric properties and not the pyrochlore phase.

The role of interfacial zone in dielectric properties of transformer oil-based nanofluids

2016 ◽  
Vol 23 (6) ◽  
pp. 3364-3372 ◽  
Author(s):  
Diaa-Eldin A. Mansour ◽  
Ahmed M. Elsaeed ◽  
Mohamed A. Izzularab
Keyword(s):  
Dielectric Properties ◽  
Transformer Oil ◽  
Interfacial Zone
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