Results 71 to 80 of about 33,129 (274)
Deposition of Multicomponent Chromium Carbide Coatings Using a Non-Conventional Source of Chromium and Silicon with Micro-Additions of Boron [PDF]
Materials Research, 2017 The chromium carbide coatings are widely used in the mechanical industry due to its corrosion resistance and mechanical properties. In this work, we evaluated a new source of chromium and silicon with micro-additions of boron on the deposition of multi ...
Jesús Eduardo González Ruíz +3 more
doaj +1 more source
The Diderot meteorite: The second chassignite [PDF]
, 2005 The Diderot meteorite is a dunite discovered in Sahara.
Barrat, J-A. +8 more
core
Magnetic-induced phonon anisotropy in ZnCr$_2$O$_4$ from first principles
, 2006 We have studied the influence of magnetic order on the optical phonons of the geometrically frustrated spinel ZnCr$_2$O$_4$ from first-principles. By mapping the first-principles phonon calculations onto a Heisenberg-like model, we developed a method to ...
Craig J. Fennie +3 more
core +1 more source
Natural Resources and Political Patronage in Africa: An Ethnicity Level Analysis
Review of Development Economics, EarlyView.ABSTRACT We investigate the effect of resource discoveries on ethnicity‐level political patronage in Africa using a large geospatial dataset of 254 ethnic groups in 15 countries over the period 1960–2004. We find that the first (or single first) resource discovery in a virgin ethnic homeland increases the share of cabinet posts of that ethnicity.
Sambit Bhattacharyya, Nemera Mamo
wiley +1 more source
Kuwait Journal of ScienceChromite, a significant mineral for chromium, is extensively dispersed toward the southeast and east regions of Afghanistan, particularly in Logar Province.
doaj +1 more source
Electrochemical Corrosion of Lanthanum Chromite and Yttrium Chromite in Coal Slag [PDF]
, 1982 Lanthanum (La) chromites have long been considered as electrodes for magnetohydrodynamic (MHD) generator channels (1,2,3,4). These chromites when doped with divalent ions such as Ca, Mg or Sr have adequate electronic and electrical conductivity and have melting points >2500 K (2).
Marchant, D.D., Bates, J.L.
openaire +1 more source
Geostandards and Geoanalytical Research, Volume 50, Issue 2, Page 391-406, June 2026.Key Points A new magnetite reference material (PF21mt) is available for δ18O measurements by SIMS. Reproducibility of measurement results in two laboratories suggest orientation bias of ±2‰ (2s) at 20 keV. Repeatability improves to ±1‰ (2s) when using a 13 keV protocol, suggesting reduced orientation bias. In situ isotope ratio measurements provide the
Michelle Ulrich +4 more
wiley +1 more source
Platinum group element mineralization at Musongati (Burundi) : concentration and Pd-Rh distribution in pentlandite [PDF]
, 2017 The mafic-ultramafic intrusions of the Karagwe-Ankole belt in Burundi are considered as a new potential source for platinum group elements (PGE). The intrusions have mainly been studied for their PGE potential with regard to PGE concentration, but the ...
Dewaele, Stijn +2 more
core +1 more source
Biofuels, Bioproducts and Biorefining, Volume 20, Issue 3, Page 1235-1243, May/June 2026.Abstract The long‐term viability of Jatropha curcas as a biodiesel feedstock has been widely debated. Many early initiatives failed to deliver consistent economic returns despite promising environmental attributes. This study re‐evaluated J. curcas‐based systems within an integrated environmental–economic framework, focusing on their potential role in ...
Eduardo Sansão Sozinho Maurício +3 more
wiley +1 more source
Platinum-bearing chromite layers are caused by pressure reduction during magma ascent
Nature Communications, 2018 Platinum-bearing chromitites in mafic-ultramafic intrusions such as the Bushveld Complex are key repositories of strategically important metals for human society.
R. Latypov +5 more
semanticscholar +1 more source