Results 161 to 170 of about 821,355 (285)

A Reassessment of Petrochemistry of ~1.2 Ga Tonalitic Rocks of the Northern Tugela Terrane, Natal Metamorphic Belt, South Africa: Further Constraints on the Evolution of This Belt

Geological Journal, EarlyView.
Our petrochemical studies on ~1.2 Ga granitoids of the Natal Metamorphic Belt, South Africa, do not suggest any property similar to Phanerozoic‐style subduction‐related granitoids. Plot of Kotongweni Tonalite in Y versus Sr diagram (after Moyen 2011), note that most samples have Sr/Y < 50.
Palesa Leuta, Saumitra Misra, Thembiso O. Basupi   +2 more
wiley   +1 more source

Apatite in Carbonatite Preserving Primary Magmatic, Post‐Magmatic Overgrowth, and Post India‐Asia Collision‐Related Hydrothermal Alteration: Evidenced From U–Pb Isotope and Trace Element Geochemistry

Geological Journal, EarlyView.
U–Pb isotope and trace element geochemistry of apatite from carbonatites of Peshawar Plain Alkaline Igneous Province, western Himalaya shows Permo‐Carboniferous magmatism, an additional magmatic pulse during Cretaceous, and post‐magmatic hydrothermal/metasomatism during Oligocene. ABSTRACT U–Pb isotope and trace element geochemistry of apatite combined
Mehboob ur Rashid, Hafiz U. Rehman, Hao‐Yang Lee, Sun‐Lin Chung, Kaushik Das, Kazumasa Aoki, Muhammad Jawad Zeb, Nasir Ahmad, Muhammad Hussain, Hiroshi Yamamoto   +9 more
wiley   +1 more source

Heterogeneous Exhumation Mechanisms in Neoproterozoic Collisional Metamorphism: P–T Constraints From Pelotas and Punta del Este Terranes, Southern Brazil and Uruguay

Geological Journal, EarlyView.
Petrography, thermobarometry, and pseudosection modelling reveal peak metamorphic conditions of 3–7.5 kbar and 520°C–800°C in Tonian‐Cryogenian orthogneisses of the Dom Feliciano Belt. Metamorphic field gradients of 27°C/km–39°C/km and variable exhumation mechanisms support correlation of these units as remnants of a Himalayan‐type Piratini Orogeny ...
Thaiane Niederauer‐Santos, Carla Cristine Porcher, Daniel Triboli Vieira, Edinei Koester, Diego Jaldín, Karina Luengo, Luisa Caon   +6 more
wiley   +1 more source

Zirconium and hafnium separation from chloride solutions by organophosphorous compounds

, 1996
The zirconium/hafnium separation, as currently practiced, is mostly carried out by solvent extraction in which the aqueous chloride solution of metals is contacted with an immiscible organic phase containing a reagent that removes hafnium leaving ...
Vianna da Silva, A. B. (Aloysio B.)
core  

Unlocking Ferroelectricity in Hafnia: From Phase Origins to Device Integration

Interdisciplinary Materials, EarlyView.
This review provides a systematic overview of the critical factors for inducing ferroelectricity in hafnia‐based systems, covering multiple dimensions such as physical origin mechanisms, materials research, integration strategies, and emerging application areas.
Jiangzhen Niu, Xichen Tang, Wenhui Shi, Yunrui Xiu, Huimin Mao, Ye Tao, Xiaoning Zhao, Ya Lin, Zhongqiang Wang, Haiyang Xu, Yichun Liu   +10 more
wiley   +1 more source

Corrosion Behavior of Commercial FeCrAl and TiAl Alloys in Molten Pb With 2E‐7 wt% Oxygen at 600°C and 700°C

Materials and Corrosion, EarlyView.
Excellent corrosion resistance of commercial Al‐containing materials is shown for exposures to liquid lead (Pb) at 600°C. However, oxide scale failure occurs at 700°C. The formed oxide scales and their failure mechanisms are explored. ABSTRACT Liquid lead (Pb) is an attractive heat transfer fluid for advanced thermal energy storage (TES) systems.
Renate Fetzer, Anisa Purwitasari, Annette Heinzel, Alfons Weisenburger, Georg Müller   +4 more
wiley   +1 more source

Opportunities for 2D‐Material‐Based Multifunctional Devices and Systems in Bioinspired Neural Networks

Small, EarlyView.
Bio‐inspired computing offers a route to highly energy‐efficient artificial intelligence. The unique physical properties of two‐dimensional (2D) materials can further enhance such computing approaches. This perspective highlights recent developments in 2D materials‐based neuromorphic devices and discusses future opportunities for integrating such novel
Jin Feng Leong, Maheswari Sivan, Jieming Pan, Zihang Fang, Jianan Li, Zefeng Xu, Shi Zhao, Quanzhen Wan, Evgeny Zamburg, Aaron Voon‐Yew Thean   +9 more
wiley   +1 more source

Mechanism-Guided Precision Hydrolysis of Early Transition Metals to Access (Mixed-Metal) Oxo Clusters. [PDF]

Angew Chem Int Ed Engl
Parammal MJ, Pulparayil Mathew J, Prescimone A, Unniram Parambil AR, Wilson H, De Roo J.   +5 more
europepmc   +1 more source

A Versatile Heterometallic Microporous MOF for Photocatalytic Hydrogen Generation

Small, EarlyView.
This work describes a green and scalable approach to robust and flexible heterometallic MOFs, MIP‐215's, with tunable photoactivity for efficient, noble‐metal‐free solar hydrogen production. ABSTRACT Photocatalytic particulate systems offer a cost‐effective solar hydrogen production but are generally limited by narrow visiblelight absorption and poor ...
Xingze Wang, Juan José Ramírez‐Hernández, Iurii Dovgaliuk, Valentin Diez Cabanes, Debanjan Chakraborty, Herme G. Baldoví, Hermenegildo García, Guillaume Maurin, Sergio Navalon, Georges Mouchaham, Christian Serre   +10 more
wiley   +1 more source

Machine‐Learning‐Assisted Discovery and Accelerated Synthesis of Metal Phosphosulfides

Small, EarlyView.
The synthesizability and band gaps of 909 hypothetical ternary phosphosulfides are evaluated by a combination of density functional theory and multi‐fidelity machine learning. The accelerated material development workflow is extended to the experimental domain by demonstrating a route to high‐throughput synthesis and characterization of virtually any ...
Javier Sanz Rodrigo, Nicholas A. Kryger‐Nelson, Lena A. Mittmann, Eugène Bertin, Ivano E. Castelli, Andrea Crovetto   +5 more
wiley   +1 more source