Results 71 to 80 of about 174,372 (312)

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

Advanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang, Annett Wollmann, Thomas Gimpel, Alfred P. Weber   +3 more
wiley   +1 more source

Constructive coupling between BiFeO3 and CoFe2O4; promising magnetic and dielectric properties

Journal of Materials Research and Technology, 2020
Multiferroic perovskite/spinel hybrid nanocomposites from lanthanum (La) and chromium (Cr) co-doped bismuth ferrite (BiFeO3); (Bi0.8La0.2Fe0.92Cr0.08O3) (BLFCO) as a multiferroic single phase matrix and a renowned hard ferrite spinel nanocrystalline of ...
S.F. Mansour, N.G. Imam, S. Goda, M.A. Abdo   +3 more
doaj   +1 more source

Resonant cavity method for broadband dielectric measurements [PDF]

, 1987
The project investigates the Cavity Perturbation Method (CRM) and design of a coaxial resonator covering a wide frequency band from 2.5 to 11.5 GHz. Using the published analyses for coaxial cavities, original theoretical analysis of Cavity Perturbation ...
Muhammad-Ahmad, Makki El-Tayyid
core  

Influence of low amounts of nanostructured silica and calcium carbonate fillers on the large-area dielectric breakdown performance of bi-axially oriented polypropylene [PDF]

, 2014
Influence of low amounts (1.0-2.0wt-%) of nanostructured silica and calcium carbonate fillers on the large area dielectric breakdown performance of bi-axially oriented polypropylene (BOPP) is analyzed.
S. Virtanen, K. Lahti, I. Rytoluoto, Virtanen, Suvi, M. Pettersson, Karttunen, Mikko, Lahti, Kari, M. Koponen, M. Karttunen, Rytöluoto, Ilkka, Rytöluoto, Ilkka; id_orcid, Koponen, M., Pettersson, Mika, Koponen, Matti   +13 more
core   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Preparation and Characterization of Pure Organic Dielectric Composites for Capacitors

MATEC Web of Conferences, 2018
This work reports the excellent dielectric composites were prepared from polyimide (PI) and poly(vinylidene fluoride) (PVDF) via solution blending and thermal imidization or chemical imidization.
Mao Xin, Lv Jinliang, Zhang Fangfang, Wu Bo, Yang Jie, Du Lirong, Tang Xianzhong   +6 more
doaj   +1 more source

Study on the microstructure, dielectric properties and phase transition behaviour of MgTiO3 and Ca0.61La0.26TiO3 mixed-phase ceramics [PDF]

Processing and Application of Ceramics
Magnesium titanate (MgTiO3) and calcium lanthanum titanate (Ca0.61La0.26TiO3) are widely regarded as functional ceramic materials with distinct dielectric and structural properties. This study investigates the mixed-phase formation of these two materials
Shen Chun-Hsu, Chen Yih-Chien, Pan Chung-Long   +2 more
doaj   +1 more source

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source

Measurement of Thermo-Optic Properties of Thin Film Dielectric Coatings [PDF]

, 2013
We have carried out an experiment to test the theory of the thermo-optic response of a dielectric stack mirror coating and to measure parameters of interest in calculating thermo-optic noise. Specifically, we measured the coefficient of thermal expansion
Ogin, Gregory H.
core   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source