Auto-combustion synthesis of perovskite-type oxides SrTi1−xFexO3−δ [PDF]
A versatile one-pot auto-combustion method for the synthesis of powders of iron-doped strontium titanate, SrTi1−xFexO3−δ, has been developed. The synthesis is optimized by the combined use of EDTA and citric acid as chelating agents, and an appropriate ...
Bouwmeester, H.J.M. +5 more
core +2 more sources
Sintering of Negative and Zero Thermal Expansion Phases in A2M3O12 Family: A Review
This study assesses multiple synthesis methods for A2M3O12 powders, as well as consolidation and sintering routes for preparation of monolithic A2M3O12 ceramics. Correlations between powder features, consolidation, and sintering have been discussed to enable the fabrication of high‐density A2M3O12 monoliths with fine microstructure and improved ...
Marianne D. R. Henriques +1 more
wiley +1 more source
This study demonstrates tunable photovoltaic responses in pure, polycrystalline BiFeO3 thin films, controlled by external electric and magnetic fields. By aligning ferroelectric domains and leveraging magnetoelectric coupling, the photogeneration is amplified up to seven times.
Luciano Cardoso Dias +14 more
wiley +1 more source
Neste trabalho o método do precursor polimérico foi usado para obter a fase Zn2TiO4 dopada com V5+. As fases foram obtidas depois que o pó precursor foi submetido a diferentes temperaturas; a caracterização do composto foi feita por meio de difração de ...
A. C. Chaves +6 more
doaj +1 more source
Luminescence in undoped CaYAl3O7 produced via the Pechini method
Abstract The luminescent properties of CaYAl3O7 (CYAM) were carried out in undoped powder samples produced via Pechini method. The thermal analysis combined with XRD measurements showed that 1000 °C/4 h is the best condition for the CYAM synthesis. Morphological analysis showed submicrometric particles with irregular shape.
Giordano F.C. Bispo +5 more
openaire +1 more source
Παρασκευή κεραμικών δοκιμίων LAMOX (La2-xAxMo2-yByO9, όπου x=0.5, 0.3 και Α=Pr, Nd, Gd, Eu, ενώ y=1 και B=W) υψηλής πυκνότητας με μεθόδους Pechini, αντίδραση στερεάς κατάστασης και μηχανοχημική ενεργοποίηση για μελέτες διάχυσης οξυγόνου και αλουμινίου [PDF]
Εθνικό Μετσόβιο Πολυτεχνείο--Μεταπτυχιακή Εργασία.
Katsafadou, Kalliopi +1 more
core +1 more source
Enhancing the Reactivity of Dicalcium Silicate Using Aluminum and Sulfur Ions Co‐Doping
ABSTRACT Belite‐rich cements are a lower‐energy and lower‐CO2 alternative to Portland cements, but the low hydraulic activity of belite remains a major limitation. This study explores the impact of aluminum and sulfur co‐doping on the structure and hydration of synthetic dicalcium silicate (C2S).
Hyeonseok Jee +2 more
wiley +1 more source
Results on the synthesis process of nanometric ceramic powders of the SrxBa1-xNb2O6 compound (SBN) for two values of x (0.33 and 0.50), and two synthesis methods (Pechini and controlled coprecipitation) are presented.
Gaona J, S. +4 more
doaj +1 more source
Catalytic Hollow Fibre Membrane Micro-reactors for Energy Applications
An asymmetric ceramic hollow fibre is proposed as a substrate for the development of a catalytic hollow fibre microreactor (CHFMR) and a catalytic hollow fibre membrane microreactor (CHFMMR).
Rahman, Mukhlis Bin A +1 more
core +1 more source
Synthesis, structural characterization and broadband ferromagnetic resonance in Li ferrite nanoparticles [PDF]
Producción CientíficaLithium ferrites are well known materials due to its numerous technological applications especially in microwave devices. Lithium ferrite nanoparticles were prepared by sol-gel technique by means of Pechini method, and then annealed ...
Almeida Valente, Manuel +3 more
core +1 more source

