Results 111 to 120 of about 1,478 (213)

Synthesis, Characterization and Optical Activity of RE-doped ZnWO4 Nanorods and Nanospheres by Hydrothermal Method

open access: yesOrbital: The Electronic Journal of Chemistry, 2019
This work has investigated the effect of different dopants on structure, morphology and optical property of ZnWO4. Rare-earth doped ZnWO4 (ZnWO4:RE, with 0.5, 1, and 2 mol% of Eu3+ and Pr3+) were successfully synthesized by coprecipitation method ...
Kellen Cristina Mesquita Borges   +6 more
doaj  

Structure characteristics and microwave dielectric properties of ZnZrNb2O8 oxide ceramics

open access: yesFrontiers in Materials
This study investigates the synthesis, structural analysis, and microwave dielectric characteristics of ZnZrNb2O8 ceramics, prepared via solid-state reaction method and subjected to sintering at temperatures ranging from 1,000°C to 1,200°C for 4 h. X-ray
Ashwini Kumar, Poorva Sharma, Fujun Qiu
doaj   +1 more source

A Facile Microwave-Assisted Hydrothermal (MAH) Method of CdWO4/CdMoO4 Heterostructures and Their Photocatalytic Properties

open access: yesCeramics
In this study, CdWO4/CdMoO4 powders’ heterostructures were synthesized using the microwave-assisted hydrothermal method, characterized, and evaluated for their photocatalytic properties.
Nivaldo F. Andrade Neto   +4 more
doaj   +1 more source

Tracing metal sources in peribatholitic hydrothermal W deposits based on the chemical composition of wolframite: The example of the Variscan French Massif Central

open access: yes, 2018
International audienceWe present a complete dataset for major, minor and trace elements in wolframite ([Fe,Mn]WO4) based on the example of several peribatholitic hydrothermal W deposits located in the Variscan French Massif Central (FMC).
Mercadier, Julien   +11 more
core   +1 more source

Sintering with Soda and Leaching of Wolframite Cakes

open access: yes
The study focuses on the processing of tungsten raw materials through various operations, including sintering, leach-ing, purification, and the production of technical tungstic acid. Modern research aims to enhance these processes, particularly the sintering of wolframite concentrates with alkali metal compounds and the leaching of concentrates and ...
Bolotpay Baimbetov   +6 more
openaire   +1 more source

SCIENTIFIC BASIS DEVELOPMENT AND PROCESS DEVELOPMENT FOR OXIDATION AUTOCLAVE-CURED SODA LEACHING OF WOLFRAMITE

open access: yes, 1992
There the product composition, the mechanism, the kinetics, the mathematical models of process have been obtained. The methods of oxidation autoclave-cured-soda leaching of wolframite conccentrates and of industrial products have been offered and have ...
Makarov, Eugene Pavlovich
core  

Research of aluminothermic reduction of wolframite concentrates

open access: yes, 2015
Пашкеев Кирилл Юльевич, аспирант кафедры физической химии, Южно-Уральский государственный университет, г. Челябинск; pashkeevii@susu.ac.ru. Пашкеев Игорь Юльевич, канд. техн.
Tarasov, P. A.   +9 more
core  

Chemical Composition of Wolframite from the Porokhovskoe and Yugo-Konevskoe W Deposits (Central Urals): Implications for Fluid Evolution and Ore Genesis

open access: yes
The composition of wolframite from ores of the Porokhovskoe and Yugo-Konevskoe W greisen deposits in the Central Urals is studied using SEM-EDS and LA-ICP-MS analyses.
Konstantin Novoselov   +2 more
core   +1 more source

Magnetic and Electrical Properties of CoRE2W2O10 Ceramic Materials. [PDF]

open access: yesACS Omega, 2023
Sawicki B   +6 more
europepmc   +1 more source

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