Results 41 to 50 of about 5,495 (300)

Noble metal mineralization in apatite titanomagnetite ores of the Suroyam massif (Middle Urals)

open access: yesGeoresursy, 2020
The mineralogical composition of apatite-titanomagnetite clinopyroxenites of the Suroyam massif, characterized by stable elevated contents of platinum group elements with the leading role of palladium, has been studied.
Dmitry E. Saveliev, Ivan A. Blinov
doaj   +1 more source

Lead Halide Perovskite Photoelectrocatalysis

open access: yesAdvanced Materials, EarlyView.
Lead halide perovskite semiconductors have emerged as highly promising materials for solar fuel and chemical synthesis. This perspective discusses advances made in the rational photoelectrode design to improve solar‐to‐chemical conversion, product scope, and scalability.
Virgil Andrei
wiley   +1 more source

Effect of HPGR on platinum bearing ores and the flotation response as compared to the conventional ball mill [PDF]

open access: yes, 2011
Includes abstract.Includes bibliographical references.This thesis focuses on the application of the high pressure grinding rolls (HPGR) on platinum bearing ores Merensky, UG2 and Platreef.
Solomon, Nomonde
core  

Crystal Structure Prediction and Lattice Dynamical Calculations for the Rare Platinum-Group Mineral Zaccariniite (RhNiAs) [PDF]

open access: yes, 2022
The crystal structures of newly found minerals are routinely determined using single-crystal techniques. However, many rare minerals usually form micrometer-sized aggregates that are difficult to study with conventional structural methods.
Ibáñez Insa, Jordi   +1 more
core   +1 more source

Highly Entangled Bottlebrush Polymer Networks

open access: yesAdvanced Materials, EarlyView.
Bottlebrush polymers are difficult to entangle, enabling ultrasoft yet brittle networks. We report highly entangled bottlebrush elastomers that remain ultrasoft (∼1 kPa) yet stretch to ∼1800% and exhibit exceptional fatigue resistance. Their intrinsic fatigue strength—fatigue threshold normalized by modulus—surpasses that of highly entangled linear ...
Myoeum Kim   +3 more
wiley   +1 more source

Platinum-group minerals in the Jinchuan complex, China [PDF]

open access: yes, 2005
Platinum-group elements (PGE) and minerals (PGM), most commonly froodite (PdBi2), michenerite (PdTeBi), padrnaite (PdBiSe), sperrylite (PtAsz) and irarsite (IrAsS), have been analysed from the Jinchuan Ni-Cu-PGE sulphide deposit in the south western ...
Zhou, MF   +4 more
core  

COMPOSITION AND MORPHOLOGY OF CRYSTALS OF PLATINUM GROUP MINERALS FROM PLACERS OF THE SOUTH URALS [PDF]

open access: yesМинералогия, 2017
Crystals of platinum group minerals (PGMs) of the Os–Ir–Ru and Pt–Fe systems from placer deposits of the South Urals are zonal and relatively homogenous in composition and can contain inclusions of PGE sulfides, arsenides, sulfarsenides, and antimonides.
V.V. Zaykov   +4 more
doaj  

Combination of 3D and 2D Small and Wide Angle X‐Ray Scattering Imaging Reveals Diminished Bone Quality in the Superior Human Femoral Neck Cortex

open access: yesAdvanced Materials, EarlyView.
Combined 2D and 3D X‐ray scattering imaging is used to analyse nanostructural properties in the inferior and superior cortex of 78 human femoral necks from 44 donors. The methodology allows for increased interpretation of nanostructure in a statistically relevant dataset, revealing nanostructural differences in anatomical locations critical to clinical
Torne Tänzer   +8 more
wiley   +1 more source

Platinum-Group Elements in Sulphide Minerals, Platinum-Group Minerals, and Whole-Rocks of the Merensky Reef (Bushveld Complex, South Africa): Implications for the Formation of the Reef [PDF]

open access: yesJournal of Petrology, 2007
The concentrations of platinum-group elements (PGE), Co, Re, Au and Ag have been determined in the base-metal sulphide (BMS) of a section of the Merensky Reef. In addition we performed detailed image analysis of the platinum-group minerals (PGM). The aims of the study were to establish: (1) whether the BMS are the principal host of these elements; (2 ...
Godel, Bélinda   +2 more
openaire   +1 more source

Hybrid Amyloid–Boron Nitride Aerogels for Lightweight Sound Insulation

open access: yesAdvanced Materials, EarlyView.
Amyloid fibrils template the mild formation of boron nitride–rich hybrid aerogels with hierarchical porosity, enhanced BN‐like ordering, and fibril‐reinforced mechanics. These ultralight materials combine thermal stability with strong sound absorption and transmission loss, offering a sustainable bio‐assisted route toward lightweight acoustic shields ...
Mohammad Peydayesh   +8 more
wiley   +1 more source

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