Results 41 to 50 of about 2,122 (178)

Cobalt-rich Ferromanganese Crusts from the Southwest Canary IslandsSeamounts : Mineralogy and Geochemistry of Strategic and Critical Elements [PDF]

, 2021
Tesis inédita de la Universidad Complutense de Madrid, Facultad de Ciencias Geológicas, Departamento de Mineralogía y Petrología, leída el 27-07-2020Esta tesis doctoral titulada “Costras de Ferromanganeso ricas en cobalto de los Montes Submarinos al ...
Marino, Egidio
core   +1 more source

Interaction of MgO Recyclate‐Based Cermet Anode With KF‐AlF3‐Al2O3 at 800°C During Laboratory Scale Aluminum Molten Salt Electrolysis

Advanced Engineering Materials, EarlyView.
A carbon‐free, as‐sintered MgO–steel cermet anode, fabricated via cold isostatic pressing using MgO–C refractory recyclate, was evaluated under laboratory‐scale K‐cryolite electrolysis at 800°C. Operation at this reduced temperature, combined with the electrolyte's limited electrical conductivity, led to an increase in cell voltage.
Farhan Hossain, Alexander Adamczyk, Felipe Alejandro Garcia Paz, Serhii Yaroshevskyi, Felix Drechsler, Daniel Vogt, Christos G. Aneziris, Alexandros Charitos   +7 more
wiley   +1 more source

Small scale fracture of multi metal carbide coatings [PDF]

, 2019
The micromechanical behavior of sputtered multi metal carbide (Hf-Nb-Ta-Zr)C coatings was investigated. A equiatomic high entropy alloy (Hf-Nb-Ta-Zr) and high density graphite were used as targets to reactively sputter carbide coatings on Si (100) with
Amalraj, M. ,, Dehm, G., Gopalan, Hariprasad, Kirchlechner, C., Schneider, J.M.   +4 more
core   +1 more source

Stable crack growth geometries as a strategy to circumvent FIB artefacts in small scale fracture testing [PDF]

Die vorliegende Arbeit befasst sich mit stabilen Risswachstumsgeometrien, die durch in-situ-Mikrobiegeexperimente untersucht werden. Es werden mehrere Experimente an unterschiedlichen Geometrien in einem Rasterelektronenmikroskop (REM) durchgeführt, um ...
Okotete, Eloho
core   +2 more sources

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

Effects of Mo, Nb, Ta, Ti, and Zr on Mechanical Properties of Equiatomic Hf-Mo-Nb-Ta-Ti-Zr Alloys

Entropy, 2018
Nowadays refractory high-entropy alloys (RHEAs) are regarded as great candidates for the replacement of superalloys at high temperature. To design a RHEA, one must understand the pros and cons of every refractory element. However, the elemental effect on
Ko-Kai Tseng, Chien-Chang Juan, Shuen Tso, Hsuan-Chu Chen, Che-Wei Tsai, Jien-Wei Yeh   +5 more
doaj   +1 more source

Damage-tolerant oxides by imprint of an ultra-high dislocation density [PDF]

Dislocations in ductile ceramics offer the potential for robust mechanical performance while unlocking versatile functional properties. Previous studies have been limited by small volumes with dislocations and/or low dislocation densities in ceramics ...
Bruder, Enrico, Fang, Xufei, Lu, Wenjun, Preuß, Oliver, Rödel, Jürgen, Zhang, Jiawen   +5 more
core   +2 more sources

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

X-ray diffraction studies of the growth process of thin films of high-entropy TiNbZrTaHfCu alloy in situ using synchrotron radiation

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов
High-entropy alloys based on refractory metals, possessing an unusual combination of physical, mechanical, tribological, electrophysical, etc. properties, can be recommended for use in various fields of industry and medicine.
Yu.F. Ivanov, Yu.Kh. Akhmadeev, A.A. Klopotov, N.A. Prokopenko, E.A. Petrikova, O.V. Krysina, V.V. Shugurov, A.N. Shmakov, V.Yu. Lavrov   +8 more
doaj   +1 more source

Compositionally Complex AlB2-type Diborides in Dissociated Air Plasma [PDF]

Multi-metal compositionally complex (CC) AlB2-type diboride solid solutions (SS) containing IV-V-VI group elements are garnering a steadily growing research interest.
Balat-Pichelin, M., Fahrenholtz, William, Hilmas, Greg, Monteverde, F., Pellegrini, C.   +4 more
core   +2 more sources