Results 21 to 30 of about 8,185,728 (308)

Experimental and Numerical Simulations of the Solidification Process in Continuous Casting of Slab

open access: yesMetals, 2016
Thermal simulation equipment (TSE) was recently developed to simulate the solidification process in the industrial continuous casting of slab. The grain growth, solid-liquid interface movement, and columnar-to-equiaxed transition (CET) in the continuous ...
Liang Bai   +5 more
doaj   +1 more source

Grain growth and grain translation in crystals [PDF]

open access: yesActa Materialia, 2016
Grain growth is generally driven to minimize the overall grain boundary energy. However, for low-angle grain boundaries the requirement that lattice planes be continuous across the boundary gives rise to a coupling between the normal motion of the grain boundary and the tangential motion of the lattice.
Kevin McReynolds   +2 more
openaire   +1 more source

Three-dimensional grain growth during multi-layer printing of a nickel-based alloy Inconel 718

open access: yesAdditive Manufacturing, 2019
Heterogeneous grain structure is a source of the inhomogeneity in structure and properties of the metallic components made by multi-layer additive manufacturing (AM).
H. Wei   +3 more
semanticscholar   +1 more source

Promoting abnormal grain growth in Fe-based shape memory alloys through compositional adjustments

open access: yesNature Communications, 2019
Iron-based shape memory alloys are promising candidates for large-scale structural applications due to their cost efficiency and the possibility of using conventional processing routes from the steel industry.
M. Vollmer   +6 more
semanticscholar   +1 more source

Characterization of metals in four dimensions

open access: yesMaterials Research Letters, 2020
The ability to watch the three-dimensional (3D) evolution of structural materials is a breakthrough in non-destructive characterization. In particular, X-ray tomographic imaging techniques have found success in revealing the underlying mechanisms of ...
Ashwin J. Shahani   +3 more
doaj   +1 more source

Phase-field modeling of grain evolutions in additive manufacturing from nucleation, growth, to coarsening

open access: yesnpj Computational Materials, 2021
A three-dimensional phase-field model is developed to simulate grain evolutions during powder-bed-fusion (PBF) additive manufacturing, while the physically-informed temperature profile is implemented from a thermal-fluid flow model. The phase-field model
Min Yang, Lu Wang, Wentao Yan
semanticscholar   +1 more source

Non-wetting surface-driven high-aspect-ratio crystalline grain growth for efficient hybrid perovskite solar cells

open access: yesNature Communications, 2015
Large-aspect-ratio grains are needed in polycrystalline thin-film solar cells for reduced charge recombination at grain boundaries; however, the grain size in organolead trihalide perovskite (OTP) films is generally limited by the film thickness. Here we
Cheng Bi   +5 more
semanticscholar   +1 more source

Grain growth and yield potential of wheat genotypes under late sown heat stressed condition

open access: yesFundamental and Applied Agriculture, 2019
Four wheat genotypes (BARI gom 25, BARI gom 26, BAW 1135 and Pavon 76) were sown at different dates (29 November, 5, 16, 23 and 30 December respectively) to evaluate genotypic differences imposed by late seeded heat stress condition.
Joyanti Ray, Jalal Uddin Ahmed
doaj   +1 more source

Structural Stability and Performance of Noble Metal-Free SnO2-Based Gas Sensors

open access: yesBiosensors, 2012
The structural stability of pure SnO2 nanoparticles and highly sensitive SnO2-SiO2 nanocomposites (0–15 SiO2 wt%) has been investigated for conditions relevant to their utilization as chemoresistive gas sensors. Thermal stabilization by SiO2 co-synthesis
Antonio Tricoli
doaj   +1 more source

Effect of High Pressure Spark Plasma Sintering on the Densification of a Nb-Doped TiO2 Nanopowder

open access: yesCeramics, 2020
Sintering under pressure by means of the spark plasma sintering (SPS) technique is a common route to reduce the sintering temperature and to achieve ceramics with a fine-grained microstructure.
Alexandre Verchère   +8 more
doaj   +1 more source

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