Results 21 to 30 of about 113,242 (268)

A Review on Buried Interface of Perovskite Solar Cells

open access: yesEnergies, 2023
Perovskite solar cells (PSCs) have been developed rapidly in recent years because of their excellent photoelectric performance. However, interfacial non-radiative recombination hinders the improvement of device performance.
Yu Pu   +5 more
doaj   +1 more source

Curvature and solidification [PDF]

open access: yesJournal of Computational Physics, 1985
A method is presented for finding the osculating circle, and thus the curvature and the normal, of a curve defined by an array of partial volumes. This method is applied, within the framework of an enthalpy formulation, to the solutions of model equations that describe the motion of a front separating ice and supercooled water.
openaire   +2 more sources

Understanding the formation of equiaxed α during dynamic precipitation in titanium alloys by elastoplastic phase field simulation

open access: yesJournal of Materials Research and Technology, 2023
Dynamic α precipitation with hot deformation is commonly adopted to obtain equiaxed α for tailoring the mechanical properties of Ti alloys. The formation of an equiaxed shape rather than the typically observed α plate is closely correlated with the ...
Lei Zhang   +6 more
doaj   +1 more source

Thermal analysis applied to estimation of solidification kinetics of Al–Si aluminium alloys [PDF]

open access: yes, 2009
Evaluation of solidification kinetics by thermal analysis is a useful tool for quality control of Al–Si melts before pouring provided it is rapid and highly reproducible.
Loizaga, Aitor   +7 more
core   +1 more source

Observations on Nanoscale Te Precipitates in CdZnTe Crystals Grown by the Traveling Heater Method Using High Resolution Transmission Electron Microscopy

open access: yesCrystals, 2018
Te precipitates in CdZnTe (CZT) crystals grown by the traveling heater method (THM) are investigated using high-resolution transmission electron microscopy (HRTEM).
Boru Zhou   +9 more
doaj   +1 more source

Solidification characteristics and as-cast microstructures of a Ru-containing nickel-based single crystal superalloy

open access: yesJournal of Materials Research and Technology, 2021
The solidification characteristics and as-cast microstructures of a Ru-containing nickel-based single crystal superalloy were systematically investigated through thermal analysis, Thermo-Calc simulation, the planar interface solidification experiment ...
Kaili Cao   +7 more
doaj   +1 more source

Microstructure and Mechanical Properties of Diffusion-Bonded CoCrNi-Based Medium-Entropy Alloy to DD5 Single-Crystal Superalloy Joint

open access: yesCrystals, 2021
This study focuses on the diffusion bonding of a CoCrNi-based medium-entropy alloy (MEA) to a DD5 single-crystal superalloy. The microstructure and mechanical properties of the joint diffusion-bonded at variable bonding temperatures were investigated ...
Shiwei Li   +7 more
doaj   +1 more source

Improved Surface Wettability of Water by Applying SiC/Ti6Al4V Coatings on Carbon/Carbon Composites

open access: yesAdvances in Materials Science and Engineering, 2013
SiC/Ti6Al4V coatings were applied on carbon/carbon composites to improve the surface wettability of water. SiC interlayers were preprepared by pack cementation to bond both the carbon/carbon composites and the Ti6Al4V, and then the Ti6Al4V coatings were ...
Lei-Lei Zhang   +7 more
doaj   +1 more source

New approaches to casting hypereutectic Al-Si alloys to achieve simultaneous refinement of primary silicon and modification of eutectic silicon [PDF]

open access: yes, 2013
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel UniversityHypereutectic Al-Si alloys are of increasing interest for applications that require a combination of light weight and high wear resistance, such as pistons ...
Al-Helal, Kawther
core   +4 more sources

Surface remelting strategy for enhancing forming quality in laser directed energy deposition of Al2O3/GdAlO3/ZrO2 eutectic ceramics: Defect suppression and microstructure evolution

open access: yesJournal of Advanced Ceramics
The intrinsic brittleness of ceramic materials and the complex temperature field used during laser directed energy deposition (LDED) inevitably lead to the formation of surface and internal defects in the fabricated components, which significantly affect
Shengyang Yu   +12 more
doaj   +1 more source

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