Results 41 to 50 of about 21,446 (309)
Electrical properties evaluation of double‐layer nano‐filled oil‐paper composites
IET Science, Measurement & Technology, 2021 Oil‐paper composite is the main insulation system in oil‐filled transformers. In recent years, the use of nanotechnology to improve the electrical and thermal properties of transformer oil has become a field of research interest.
Amr M. Abd‐Elhady +2 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar +7 more
wiley +1 more source
Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)
Advanced Engineering Materials, EarlyView.Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho +8 more
wiley +1 more source
e-Polymers, 2021 In this work, strontium titanate (STO) was coated on the surface of carbon nanotubes (MWCNTs) through a sol–gel method to form a core–shell structure hybrid powder (STO@MWCNTs).
Han Ruolin +4 more
doaj +1 more source
Electrical tree modelling in dielectric polymers using a phase-field regularized cohesive zone model
Materials & Design, 2023 Electrical treeing is a leading cause to the eventual breakdown of dielectric polymers under high voltages. This paper presents a simulation scheme developed based on the phase-field regularized cohesive zone model (PF-CZM) for electrical tree modelling.
Qi Wang +7 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran +6 more
wiley +1 more source
The effect of molecular structure of dielectric fluids on their conduction and breakdown
, 1990 Several synthetic dielectric fluids with significantly different molecular structures were investigated with regard to their conduction and breakdown behavior to determine the relation between these processes under DC and AC conditions. M&DBT, DTE, DINP,
R. Cecere +3 more
core +1 more source
A Dislocation Perspective on Strength and Toughness in Ceramics
Advanced Engineering Materials, EarlyView.Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley +1 more source
Some Factors Effecting on the Dielectric Strength for (PVC- Kaolin) Composites [PDF]
Engineering and Technology Journal, 2011 This research includes the effect of kaolin additions to the polymer matrix (PVC) and study some factors affecting to dielectric strength. The kaolin powder was added as percentage by weight (1,2,3 and 4%) to PVC, and the specimens formed by hot pressing
doaj +1 more source
Failure mechanisms of polyimide and perfluoroalkoxy films under high frequency pulses [PDF]
, 2010 Breakdown behaviors of polyimide and perfluoroalkoxy high temperature films under unipolar and bipolar repetitive pulses are investigated. A bipolar 20kV, 20 kHz and fast dV/dt pulse generator has been designed and built to study the impact of pulse ...
Yin, Weijun +9 more
core +1 more source