Numerical analysis of thermohydraulic behavior in a directional solidification furnace
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Thermal Analysis and Calorimetry"
DOI: 10.1007/s10973-020-09417-0
Abstract: In this study, the crystallization process in a directional solidification furnace is studied by using the transient numerical simulation. The flow field in melt silicon in conjunction with different solidification stages is investigated. A separated… read more here.
Keywords: analysis; solidification; cover; solidification furnace ... See more keywords
Motion of Solid Grains During Magnetic Field-Assisted Directional Solidification
Sign Up to like & getrecommendations! Published in 2018 at "Metallurgical and Materials Transactions B"
DOI: 10.1007/s11663-018-1199-6
Abstract: AbstractIn this paper, we report the visible evidence for thermoelectric magnetic forces (TEMFs) during magnetic field-assisted directional solidification, and their potential to control the motion of solid grains (dendrite fragments or equiaxed grains). These motions… read more here.
Keywords: motion; assisted directional; motion solid; field assisted ... See more keywords
Numerical Simulation on the Suppression of Crucible Wall Constraint in Directional Solidification Furnace
Sign Up to like & getrecommendations! Published in 2018 at "Silicon"
DOI: 10.1007/s12633-018-9873-5
Abstract: We carried out a global modelling and transient simulation of bulk multi-crystalline silicon (mc-Si) growth in Directional Solidification (DS) furnace. The temperature distribution and the heat flux have been investigated. The stress and dislocation have… read more here.
Keywords: crucible wall; wall constraint; simulation; solidification furnace ... See more keywords
Directional solidification of aqueous TiO2 suspensions under reduced gravity
Sign Up to like & getrecommendations! Published in 2017 at "Acta Materialia"
DOI: 10.1016/j.actamat.2016.11.038
Abstract: Abstract Porous materials exhibiting aligned, elongated pore structures can be created by directional solidification of aqueous suspensions—where particles are rejected from a propagating ice front and form interdendritic, particle-packed walls—followed by sublimation of the ice,… read more here.
Keywords: tio2; solidification; lamellar spacing; solidification aqueous ... See more keywords
Fragmentation-driven grain refinement in directional solidification of AlCu10wt-% alloy at low pulling speeds
Sign Up to like & getrecommendations! Published in 2017 at "Acta Materialia"
DOI: 10.1016/j.actamat.2016.12.063
Abstract: Abstract The formation of the grain structure in Al-10 wt%Cu alloy during directional solidification was investigated experimentally. The alloy composition was chosen because of its special feature that both the initial melt composition and the solidifying… read more here.
Keywords: driven grain; fragmentation driven; solidification; refinement directional ... See more keywords
Twinning mechanism at three-grain tri-junction during directional solidification of multi-crystalline silicon
Sign Up to like & getrecommendations! Published in 2018 at "Acta Materialia"
DOI: 10.1016/j.actamat.2017.10.042
Abstract: Abstract We propose a model to explain the formation mechanism of twin grains at the three-grain tri-junction (3GTJ) on the growth interface during directional solidification of multi-crystalline silicon. We also attempt to confirm its validity… read more here.
Keywords: grain tri; tri junction; three grain; solidification multi ... See more keywords
Effect of sub-boundaries on primary spacing dynamics during 3D directional solidification conducted on DECLIC-DSI
Sign Up to like & getrecommendations! Published in 2021 at "Acta Materialia"
DOI: 10.1016/j.actamat.2020.116500
Abstract: Abstract To characterize the dynamical formation of three-dimensional (3D) arrays of cells and dendrites under diffusive growth conditions, in situ monitoring of a series of experiments on a transparent succinonitrile – 0.24 wt% camphor model… read more here.
Keywords: sub boundaries; primary spacing; effect; sub ... See more keywords
In situ investigation of the Columnar-to-Equiaxed Transition during directional solidification of Al–20wt.%Cu alloys on Earth and in microgravity
Sign Up to like & getrecommendations! Published in 2021 at "Acta Materialia"
DOI: 10.1016/j.actamat.2021.117401
Abstract: Abstract Solidification experiments on Al–20 wt.%Cu alloys with grain refiner were performed in a Bridgman-type furnace to investigate the impact of gravity-driven phenomena on the Columnar-to-Equiaxed Transition (CET) during directional solidification (i) in microgravity, on board… read more here.
Keywords: equiaxed transition; solidification; columnar equiaxed; directional solidification ... See more keywords
Effect of rotational vibrations on directional solidification of high-temperature binary SiGe alloys
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2017.12.048
Abstract: Abstract Numerical investigation of flows and heat and mass transfer during the directional solidification of high temperature SiGe alloys in the presence of rotational vibrations has been performed. It has been shown that the structure… read more here.
Keywords: solidification high; rotational vibrations; temperature; sige alloys ... See more keywords
Microstructure and mechanical properties of Al0.7CoCrFeNi high-entropy-alloy prepared by directional solidification
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DOI: 10.1016/j.intermet.2017.11.019
Abstract: Abstract The high-entropy-alloy Al0.7CoCrFeNi (molar ratio) was prepared by vacuum arc melting followed by directional solidification (DS) with oriented seed. The unique lamellar-dendrite microstructure was obtained over a wide cooling rate range. During solidification, Fe… read more here.
Keywords: entropy alloy; solidification; al0 7cocrfeni; mechanical properties ... See more keywords
Thermosolutal convection-induced freckle formation in steady and unsteady directional solidification: Analysis in Sn-Ni peritectic alloy
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2021.159558
Abstract: Abstract Peritectic alloys have attracted more and more attention during past decades due to their growing applications. However, different from the current analysis on other alloys, freckle formation is witnessed in two regions in Sn–Ni… read more here.
Keywords: freckle formation; formation; peritectic alloy; directional solidification ... See more keywords