Results 71 to 80 of about 1,478 (213)

The Effect of Terbium Dopant on Structural Characteristics of Zinc Tungstate [PDF]

open access: yesNanochemistry Research
Zinc tungstate (ZnWO4) possesses exceptional optical properties, making it a valuable material for scintillators and phosphors in radiation detection and imaging applications.
Gholamreza Gholami   +3 more
doaj   +1 more source

GGR Handbook of Rock and Mineral Analysis Chapter 2 (Part 1) Analysis of Geological Materials – 1: Sample Preparation Methods

open access: yesGeostandards and Geoanalytical Research, Volume 49, Issue 1, Page 9-50, March 2025.
Key Points Comprehensive review of dissolution‐decomposition methods based on acid attack and molten salt fusion. Dissolution remains the preferred method for many modern instrumental measurement principles e.g., ICP‐MS, ICP‐AES and TIMS. Comprehensive reviews of flux-free fusion for glasses and production of pressed powder pellets for analysis by EPMA,
Philip Robinson
wiley   +1 more source

Wolframite

open access: yes, 2008
180 DPI x 180 DPI, Canon Powershot SD1000large heavy speciman of wolframite with striations on some of the crystal facesCARES Summer Research ...
Law, Haley
core  

Synergic Effect of sodium oleate (NaOL) and benzohydroxamic acid (BHA) on flotation of wolframite [PDF]

open access: yes, 2017
In this work, two collectors sodium oleate (NaOL) and benzohydroxamic acid (BHA) were used to study the synergic effect in wolframite flotation. The flotation behaviour of these collectors was investigated at various NaOL:BHA ratios.
Bu, H., Huang, H., Cao, M., Gao, Y.
core   +1 more source

High-Purity Tungsten Oxide Production from Low-Grade Scheelite Concentrates at Pilot Plant Scale

open access: yesMetals
Tungsten is a critical raw material with increasingly important industrial applications. It is primarily found in minerals such as scheelite and wolframite (0.5% W), which are extracted and processed at the mine site to produce a high-grade scheelite ...
Javier Nieto   +3 more
doaj   +1 more source

Towards an Ethical Electronics? Ecologies of Congolese Conflict Minerals

open access: yesWestminster Papers in Communication and Culture, 2015
This paper asks how coltan, casseterite, wolframite and gold ores mined in the Democratic Republic of Congo relate networked microelectronics to brutal warlords, and what legal and industrial actions have been enacted by activists, NGOs, politicians and ...
Sy Taffel
doaj   +2 more sources

Tungsten Wire—From Lamp Filaments to Reinforcement Fibers for Composites in Fusion Reactors

open access: yesAdvanced Engineering Materials, Volume 26, Issue 19, October 2024.
The article retraces the development of drawn tungsten wires from the application as filament material in incandescent lighting to its use as reinforcement fibers for advanced composites in nuclear fusion. Highlights are the materials science reasons for the wires’ unique mechanical properties and an outlook into the potential “second life” in advanced
Johann Riesch   +2 more
wiley   +1 more source

Distinct microbial communities supported by iron oxidation

open access: yesEnvironmental Microbiology, Volume 26, Issue 10, October 2024.
This study addresses the diversity and community composition of simple prokaryotic communities growing as microbial biostalactites or streamers at iron seepages in abandoned mines. We analysed 85 communities within a pH range of 2.4–6.6 and found that a pH of 3.2 is a critical point where community composition and diversity change discretely.
Kateřina Burkartová   +3 more
wiley   +1 more source

Redetermination of the crystal structure of β-zinc molybdate from single-crystal X-ray diffraction data

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
The crystal structure of the β-polymorph of ZnMoO4 was re-determined on the basis of single-crystal X-ray diffraction data. In comparison with previous powder X-ray diffraction studies [Katikaneani & Arunachalam (2005). Eur. J. Inorg. Chem. pp. 3080–3087;
Olfa Mtioui-Sghaier   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy