Results 11 to 20 of about 103,978 (224)

Single crystal growth of iridates without platinum impurities [PDF]

open access: yes, 2022
Iridates have attracted much interest in the last decade for their novel magnetism emerging in the limit of strong spin-orbit coupling and possible unconventional superconductivity. A standard for growing iridate single crystals has been the flux method using platinum crucibles.
arxiv   +1 more source

Research on contour feature extraction method of multiple sports images based on nonlinear mechanics

open access: yesNonlinear Engineering, 2022
This article solves the issue of long extraction time and low extraction accuracy in traditional moving image contour feature extraction methods. Here authors have explored deformable active contour model to research the image processing technology in ...
Wang Jucui   +4 more
doaj   +1 more source

Pt and Al Recovery from a Spent Pt/Al2O3 Catalyst via an Integrated Soda Roasting–Alkaline Leaching–Carbonization Process

open access: yesMetals, 2023
An integrated soda roasting–alkaline leaching–carbonization process was developed to recover platinum (Pt) and aluminum (Al) from a spent Pt/Al2O3 catalyst. A product with the main component of NaAlO2 was obtained under the optimal roasting conditions of
Haigang Dong   +5 more
doaj   +1 more source

Interfacial structure and mechanical properties of the Ta/Re layered composites prepared by chemical vapor deposition

open access: yesMaterials Research Express, 2021
A novel Ta/Re layered composites with high temperature resistance, low cost, light weight, and excellent mechanical properties has been prepared by chemical vapor deposition, for improving the comprehensive service performance of the aerospace engine ...
Zhentao Yuan   +7 more
doaj   +1 more source

Quasi-harmonic thermoelasticity of palladium, platinum, copper, and gold from first principles [PDF]

open access: yes, 2021
We calculate the temperature-dependent elastic constants of palladium, platinum, copper and gold within the quasi-harmonic approximation using a first-principles approach and evaluating numerically the second derivatives of the Helmholtz free-energy with respect to strain at the minimum of the free-energy itself.
arxiv   +1 more source

Preparation of Ta/W Composite by CVD

open access: yesJournal of Aeronautical Materials, 2017
The Ta/W composites with 10%W, 13%W and 18%W were prepared by chemical vapor deposition (CVD). The properties of Ta/W composites were investigated by optical microscopy (OM), scanning electron microscopy (SEM ) and tensile test.
QI Xiaohong   +5 more
doaj   +1 more source

Research progress on new materials and properties of electronic skin

open access: yes工程科学学报, 2020
Human skin is an extraordinary organ; it comprises an integrated,stretchable network of sensors that transmits information to the brain about tactile and thermal stimuli, enabling us to safely and efficiently operate in our environment.
Su-wei WAN   +3 more
doaj   +1 more source

Template-Free Synthesis of One-Dimensional SnO2 Nanostructures Using Highly Efficient Hydrothermal Method

open access: yesApplied Sciences, 2023
One-dimensional (1D) SnO2 nanostructures, as n-type semiconductors with a wide band gap, exhibit unique photoelectric properties that offer potential applications in electronic, photoelectric, gas sensing, and energy generation devices.
Jingchen Zhao   +4 more
doaj   +1 more source

Thermodynamic reassessment of Au–Pt–Sn system

open access: yesMaterials Research Express, 2022
Au–Pt–Sn alloys are a novel class of materials with promising catalytic properties. This study provides updated information on phase equilibrium structures and thermodynamics of the Au–Pt–Sn ternary system.
Jieqiong Hu   +4 more
doaj   +1 more source

The Dynamics of Platinum Precipitation in an Ion Exchange Membrane [PDF]

open access: yesJournal of The Electrochemical Society, 158(3) B322-B330 (2011), 2013
Microscopy of polymer electrolyte membranes that have undergone operation under fuel cell conditions, have revealed a well defined band of platinum in the membrane. Here, we propose a physics based model that captures the mechanism of platinum precipitation in the polymer electrolyte membrane.
arxiv   +1 more source

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