scholarly journals DC Electrical Ageing of XLPE under Hydrostatic Pressure

2017 ◽  
Vol 2017 ◽  
pp. 1-5 ◽  
Author(s):  
Fadila Benlizidia Lalam ◽  
Faouzi Djemmal
Keyword(s):  
Hydrostatic Pressure ◽  
Direct Current ◽  
Atmospheric Pressure ◽  
Pressure Effect ◽  
Power Model ◽  
Lifetime Data ◽  
Confidence Bounds ◽  
Polyethylene Films ◽  
Thermally Activated ◽  
Thermally Activated Process

The experimental electrical ageing, of cross-linked polyethylene films 100 μm thick, was investigated under high hydrostatic pressure of 300 bar and at atmospheric pressure. The tests are conducted on direct current (dc) for up to 1000 h ageing and at temperature of 70°C. The use of the Weibull statistic, with the estimation of confidence bounds at 90%, has shown that the hydrostatic pressure has a real effect on the lifetime. These lifetime data are qualitatively analyzed with the inverse power model. It was found that thermally activated process is able to describe the pressure effect on the electrical ageing of XLPE.

The Hydrostatic Pressure Effect on Elastic Properties of B2-Phase Single Crystals Ti50Ni48Fe2and Ti50Ni45Fe5Alloys

1995 ◽  
Vol 05 (C8) ◽  
pp. C8-729-C8-734
Author(s):  
A.I. Lotkov ◽  
V.P. Lapshin ◽  
V.A. Goncharova ◽  
H.V Chernysheva ◽  
V.N. Grishkov ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Single Crystals ◽  
Elastic Properties ◽  
Pressure Effect ◽  
B2 Phase

scholarly journals Hydrostatic pressure effect on T c of new BiS2 -based Bi4 O4 S3 and NdO0.5 F0.5 BiS2 layered superconductors

2013 ◽  
Vol 7 (7) ◽  
pp. 510-513 ◽  
Author(s):  
G. Kalai Selvan ◽  
M. Kanagaraj ◽  
S. Esakki Muthu ◽  
Rajveer Jha ◽  
V. P. S. Awana ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Pressure Effect ◽  
Layered Superconductors

RBS/Channeling Diffusion Studies of High Energy Au Implanted Mg Single Crystals

1991 ◽  
Vol 235 ◽  
Author(s):  
R. C. Da Selva ◽  
M. F. Da Silva ◽  
L. Thomé ◽  
A. A. Melo ◽  
J. C. Soares
Keyword(s):  
Single Crystals ◽  
Temperature Regime ◽  
High Energy ◽  
Back Diffusion ◽  
Thermally Activated ◽  
Diffusion Studies ◽  
Higher Temperature ◽  
Diffusion Behaviour ◽  
Thermally Activated Process

ABSTRACTRBS/channeling analyses of high energy Au implantation into Mg are presented. The diffusion behaviour of Au was studied and the occurrence of essentially two distinct regimes were observed: the segregation regime at lower temperatures correlated with the damage introduced by the high energy implantation and the higher temperature regime as a normal thermally activated process of back-diffusion.

scholarly journals Study of the possibility of obtaining nanocrystalline cellulose in a single stage plasma chemical process

2021 ◽  
pp. 17-23
Keyword(s):  
Microcrystalline Cellulose ◽  
Direct Current ◽  
Discharge Current ◽  
Atmospheric Pressure ◽  
Chemical Process ◽  
Discharge Voltage ◽  
Nanocrystalline Cellulose ◽  
Plasma Chemical ◽  
Small Surface ◽  
Direct Current Discharge

The paper considers the possibility of obtaining nanocrystalline cellulose (NCC) by gas-discharge treatment of aqueous suspensions of microcrystalline cellulose or filter paper. For processing, a direct current discharge was used at atmospheric pressure with a wa-ter cathode at a discharge current of 35 mA and a discharge voltage of 1500 V. It was found that the plasma-chemical treatment of cellulose-containing material in water without the use of other reagents leads to the release of NCC with relatively large parti-cle sizes and a small surface charge.

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