Results 61 to 70 of about 2,385 (300)

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, M. Naeem, T. H. C. Costa, M. S. Libório, J. C. A. Queiroz, C. B. B. Luna, R. R. M. Sousa, P. S. Vieira, E. M. Araújo   +8 more
wiley   +1 more source

Performance evaluation of ceramic insulators coated with titanium dioxide films to reduce soiling

Revista Facultad de Ingeniería Universidad de Antioquia, 2013
The soiling of in-service electrical insulators exposed to the atmosphere is a major problem in power transmission lines. Several inorganic and organic particulate materials are deposited on insulator surfaces forming a layer that could become ...
Lorena E. Correa, Esteban Velilla, Maryory Gómez, Félix Echeverría, Alejandro Marín, Juan G. Castaño   +5 more
doaj   +1 more source

Feature extraction and classification of surface discharges on an ice-covered insulator string during AC flashover using gray-level co-occurrence matrix

Scientific Reports, 2021
This study focuses on the feature extraction and classification of surface discharges of ice-covered insulator strings during process of alternating current flashover.
Yong Liu, Qiran Li, Boxue Du, Masoud Farzaneh   +3 more
doaj   +1 more source

Nondestructive Testing of Welded Composite Metal Foams

Advanced Engineering Materials, EarlyView.
X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva, Aman Kaushik, Afsaneh Rabiei   +2 more
wiley   +1 more source

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

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, Vincent Nebel, Dominik Perius, Kshitij Kumar, Yannis Heim, Laura Bies, Tobias Kraus   +6 more
wiley   +1 more source

Application of very-high-frequency (VHF) method to ceramic insulators

, 2004
A VHF method (30-300 MHz) is applied to identify faults and defects in ceramic insulators. Insulators which exhibit internal cracks and fractures are used as test samples.
K Wong (7734938)
core  

Modeling leakage current of ceramic insulators subject to high pollution levels for improving maintenance activities [PDF]

, 2018
This paper presents a useful model to determine the washing periods and to indicate the pollution levels of electrical insulators. The behavior of leakage current, which is one indicator of the presence of pollutants on the insulator surfaces, was ...
Jose Daniel Soto-Ortíz, Castillo-Sierra, Rafael, Oscar Oviedo-Trespalacios, Oviedo-Trespalacios, Oscar, Soto Ortiz, Jose Daniel, Oviedo Trespalacios, Oscar, Candelo, John E., Castillo Sierra, Rafael, John E. Candelo, Rafael Castillo-Sierra, Candelo Becerra, John Edwin, Soto-Ortíz, Jose Daniel   +11 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

Acoustic Method of On-Site Examination of Ceramic Long-Rod Insulators

Engineering Transactions, 2015
This paper presents the new non-destructive ultrasonic method for investigation of long-rod insulators working as the element of station isolating switches. The 110/6 kV stations belonged to domestic industrial power engineering.
P. Ranachowski, F. Rejmund, J. Fleszyński   +2 more
doaj   +1 more source

Evaluation of dielectric and mechanical strength of high voltage porcelain insulators made from Tanzania ceramic materials [PDF]

, 2019
A Dissertation Submitted in Partial Fulfillment of the Requirements for the Degree of Master’s in Materials Science and Engineering at the Nelson Mandela African Institution of Science and TechnologyThe study has evaluated the dielectric and mechanical ...
Ngayakamo, Blasius
core   +1 more source