Results 81 to 90 of about 225,954 (203)
Vogel-Fulcher analysis of relaxor dielectrics with the tetragonal tungsten bronze structure : Ba6MNb9O30 (M = Ga, Sc, In) [PDF]
, 2015 In-depth analysis of the relaxor behaviour of Ba6MNb9O30 (M= Ga, Sc, In) tetragonal tungsten bronze (TTB) ceramics was carried out. Powder x-ray diffraction and scanning electron microscopy were performed in order to confirm the formation of desired ...
Morrison, Finlay D., Rotaru, Andrei
core +1 more source
Anode‐Free Sodium Metal Batteries: From Materials Design to System‐Level Integration
Advanced Science, EarlyView.Anode‐free sodium metal batteries hold no sodium reserve, so every inefficiency becomes permanent loss. Resolving the inventory into reversible, dead, and chemically bound fractions exposes what Coulombic efficiency hides. Practical 500‐cycle operation requires above 99.95%, a threshold few systems meet under lean electrolyte and high areal capacity ...
Hamid Hussain +10 more
wiley +1 more source
Dielectric Properties of 0.68 Pb(Mg1/3Nb2/3)O3-0.32 PbTiO3 Ceramics with Lithium Salt Sintering Aids
工程科学与技术, 2009 :Relaxor ferroelectric 0.68 Pb(Mg1/3Nb2/3)O３-0.32 PbTiO３ ［PMN-PT］ ceramics with lithium salts (Li2CO３，LiNO３，LiF) sintering aids were prepared by the columbite precursor method. The phase composition of the ceramic samples was investigated by X
Cao Lin-Hong
doaj
Microscopia de força piezoeléctrica de relaxors ferroeléctricos [PDF]
, 2010 Doutoramento em Ciência e Engenharia de MateriaisNesta tese, ferroeléctricos relaxor (I dont know uf the order is correct) de base Pb das familias (Pb,La)(Zr,Ti)O3 (PLZT), Pb(Mg1/3,Nb2/3)O3-PbTiO3 (PMN-PT), Pb(Zn1/3,Nb2/3)O3-PbTiO3 (PZN-PT) foram ...
Kiselev, Dmitry
core
Advanced Science, EarlyView.Chemical disorder engineering reconfigures BO6 oxygen‐octahedron rotations in lead‐free K0.5Na0.5NbO3 ceramics from local ordering into a random distribution, dissolving the longstanding trade‐off between optical transparency and electromechanical strain.
Xia Luo +5 more
wiley +1 more source
Engineering Polar Nanoregions in COFs via Controlled Symmetry Breaking Toward Piezocatalysis
Angewandte Chemie, EarlyView.Polar nanoregions (PNRs) are engineered within covalent organic frameworks via asymmetric grafting of highly polar polyfluoroalkyl chains, which enables controlled symmetry breaking. These randomly oriented artificial PNRs dynamically respond to mechanical stimuli and impart relaxation behavior to the COFs (TFB‐TAPT‐FA).
Ge Yan +13 more
wiley +2 more sources
Journal of Materials Research and TechnologyThe present study is focused on describing the influence of the sintering method (fast field-assisted Spark Plasma Sintering vs. conventional sintering) on the functional properties of BaTi0.90Hf0.10O3 ceramics with polymorph superposition around room ...
Elena Mirabela Soare +11 more
doaj +1 more source
Advanced Science, EarlyView.Trilayer oxide architecture introduces interfacial asymmetry and surface roughness in SRO/BTO/SRO heterostructures, creating a locally modulated polar and magnetic landscape. This design enhances the topological‐Hall‐like response, achieving a broad 5–90 K stability window and a maximum ρTHE of 0.8 µΩ cm, demonstrating an effective route to amplify ...
Sagar E. Shirsath +11 more
wiley +1 more source
Ferroionic Electrostatic Landscapes Enabling Wireless Energy Harvesting, Storage, and Sensing
Advanced Electronic Materials, EarlyView.By integrating experiments and electrostatic field simulations, we show that long‐range wireless coupling in Li‐based ferroionics devices emerges from the cooperative interaction between ionic migration and electronic polarization. This coupling sustains self‐polarized electrostatic fields across centimeter‐scale air gaps without external bias or ...
M. Helena Braga +7 more
wiley +1 more source
Journal of Advanced DielectricsVia the method of cold sintering with post-annealing, the lead-free ceramics [Formula: see text][Formula: see text][Formula: see text]NbO3 were prepared.
Neng Qin +7 more
doaj +1 more source