Results 101 to 110 of about 5,495 (300)
Литосфера, 2018 First described the noble metal (platinum group elements (PGE) and Au) geochemical specialization of magmatic rocks of Bashkirian meganticlinorium and the adjacent part of the East European Platform (EEP).
Sergei G. Kovalev +2 more
doaj +1 more source
Non‐Equilibrium Synthesis of Whitlockite Assisted by Localized H2O Vapor Pressure
Advanced Science, EarlyView.A carbon substrate acts as a microheater during intense pulsed light irradiation, enabling rapid heating and cooling for whitlockite formation. In contrast to conventional white ceramic synthesis with weak photothermal response, this platform concentrates thermal energy locally and promotes phase‐selective crystallization under ultrafast ...
Min‐Jung Kim +5 more
wiley +1 more source
TRACE-ELEMENTS IN PLATINUM-GROUP MINERALS STUDIED USING NUCLEAR MICROSCOPY [PDF]
, 1993 A combination of μ-PIXE and μ-RBS has been used to study concentrations and distributions of trace elements in platinum group minerals from eluvial and alluvial deposits from the western seaboard of North America.
CRIDDLE, A +9 more
core +1 more source
ResourcesThis paper investigates the mineralogical and geochemical characteristics, as well as the possible sources, of gold, silver, platinum group elements (PGE), copper, and lead found in the beach sands along Egypt’s Mediterranean coast.
Abdel-Aal M. Abdel-Karim, Ahmed Gad
doaj +1 more source
Environmental Effects on RRAM Cells Based on 2D Halide Perovskite Materials
Advanced Electronic Materials, EarlyView.RRAM offers high speed, scalability, and low power, positioning it as a next‐generation non‐volatile memory. Two‐dimensional halide perovskites show promise due to tunable optoelectronic properties and flexible processing but suffer from environmental sensitivity. This review examines degradation from humidity, temperature, light, and strain, discusses
Mojtaba Joodaki +3 more
wiley +1 more source
Application of SEM and EDS for Phase Characteristics Analysis of Platinoid Mineral in the Danba Area
Yankuang ceshi, 2013 The study on of occurrence states of PGE resources and the smelting of ore mineral has long been a difficult problem to solve due to low grade copper and nickel sulfide, fine grain and the isomorphism of PGE elements in the Danba area.
WANG Kun-yang +3 more
doaj
PGM in chromitites of Kraka massifs (the Southern Urals): diversity and origin
GeoresursyThe paper provides results of study of platinum group minerals (PGMs) from 18 ore occurrences and deposits of the Kraka massifs, most of these located in ultramafic rocks of the upper mantle section (15), and several occurrences in a crust-mantle ...
D. E. Saveliev
doaj +1 more source
Electrochemical interactions of some platinum group minerals with flotation reagents [PDF]
, 2014 The recovery of base metal sulfides has been emphasized in the study of the flotation of platinum group minerals (PGMs). However, in some ore bodies such as the Platreef of the Bushveld Complex, sulfide minerals do not make up the majority of the more ...
Corin, K. +4 more
core
The distinctive suite of platinum-group minerals from Guma Water, Sierra Leone [PDF]
, 1981 Alluvial platinum was obtained from rivers draining the western edge of the Freetown Intrusion, Sierra Leone from 1929 to 1949, although the precise source of the platinum is obscured by the jungle and the depth of weathering.
Bowles, John
core +1 more source
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Silver‐doped cerium oxide nanoparticles (Ag/CeO2 NPs) were synthesized using Ricinus communis seed extract as a bio‐derived fuel in a solution combustion method. The combustion reaction, carried out at 450°C with AgNO3 and (NH4)2[Ce (NO3)6] as metal precursors, produced CeO2 and Ag/CeO2 NPs.
T. N. Ravishankar +5 more
wiley +1 more source