Results 241 to 250 of about 502,495 (311)

Effects of electromagnetic directional solidification conditions on the separation of primary silicon from Al-Si alloy with high Si content

Materials Science in Semiconductor Processing, 2018
In the present work, a continuous growth model of primary silicon from Al-Si melts was established based on the experimental and numerical data to analyze the separation mechanism of primary silicon from Al-Si alloy with high silicon content during ...
G. Lv, Y. Bao, Yufeng Zhang, Yunfei He, Wenhui Ma, Lei Yun   +5 more
semanticscholar   +1 more source

Numerical analysis for electromagnetic field influence on heat transfer behaviors in cold crucible used for directional solidification

International Journal of Heat and Mass Transfer, 2018
Cold crucible directional solidification (CCDS) is the technique that the materials in the segmented water-cooled crucible are induction heated and heat transfer controlled by electromagnetic field for directional solidifying crystals without ...
Yaohua Yang, Ruirun Chen, Jingjie Guo, H. Ding, Yan-Qing Su   +4 more
semanticscholar   +1 more source

An efficient method to separate silicon from high-silicon aluminum alloy melts by electromagnetic directional solidification

Journal of Cleaner Production, 2018
In electromagnetic directional solidification, the silicon phase cannot always be completely separated, resulting in considerable waste of power and silicon.
Yunfei He, Wenhui Ma, G. Lv, Yufeng Zhang, Lei Yun, X. Yang   +5 more
semanticscholar   +1 more source

Direct observation of microbubbles in directional solidification of salol

Physical Review Letters, 1990
Dynamic light scattering at the crystal-melt interface of solidifying salol was followed for 14 days. The hydrodynamic radius deduced from intensity correlation data increased continuously from {approx}1 to {approx}100 {mu}m. When the scattering layer was trapped by the advancing crystal front, microscopic observation revealed bubbles as inclusions ...
, Williams, , Srinivasan, , Cummins
openaire   +2 more sources

Thermosolutal convection during directional solidification

Metallurgical Transactions A, 1984
During solidification of a binary alloy at constant velocity vertically upward, thermosolutal convection can occur if the solute rejected at the crystal-melt interface decreases the density of the melt. We assume that the crystal-melt interface remains planar and that the flow field is periodic in the horizontal direction.
G. B. McFadden, R. G. Rehm, S. R. Coriell, W. Chuck, K. A. Morrish   +4 more
openaire   +1 more source

Pattern Formation in Directional Solidification

MRS Proceedings, 2003
We simulate directional solidification using the phase field method solved with adaptive mesh refinement. We examine length scale selection for two cases. For small surface tension anisotropy directed at forty five degrees relative to the pulling direction, we observe a transition from a seaweed to dendrite morphology as the thermal gradient is lowered,
Mike Greenwood, Mikko Haataja, Nikolas Provatas   +2 more
openaire   +1 more source

Directional Solidification of a Nickel-Based Superalloy Product Structure Fabricated on Stainless Steel Substrate by Electron Beam Additive Manufacturing

Metallurgical and Materials Transactions. A, 2021
S. Fortuna, D. Gurianov, K. Kalashnikov, A. Chumaevskii, Y. Mironov, E. A.  Kolubaev   +5 more
semanticscholar   +1 more source

Separation mechanism of TiSi2 crystals from a Ti-Si eutectic alloy via directional solidification

Journal of Alloys and Compounds, 2018
TiSi 2 crystals were successfully obtained via directional solidification separation of a Ti–Si eutectic alloy under electromagnetic stirring. In order to explore the separation mechanism in detail, experiments were conducted using a high-frequency ...
K. Zhu, Wenhui Ma, K. Wei, Y. Lei, Jing-fei Hu, Tianlong Lv, Yong-nian Dai   +6 more
semanticscholar   +1 more source

Microstructure and properties of Cu-Ag alloy Prepared by Continuously Directional Solidification

, 2021
Xu-Hao Zhu, Z. Xiao, J. An, Hongyun Jiang, Yanbin Jiang, Zhou Li   +5 more
semanticscholar   +1 more source

In-situ fabrication of graded material with the application of a horizontal magnetic field during directional solidification

Materials Characterization, 2018
The present paper proposes a method of graded materials preparation under a low horizontal magnetic field during directional solidification. The external horizontal magnetic field was applied to the mushy zone of the directionally solidified Al-10 wt% Cu
Dafan Du, Y. Fautrelle, A. Dong, D. Shu, G. Zhu, Bao-de Sun, H. Nguyen-Thi, Z. Ren, Xi Li   +8 more
semanticscholar   +1 more source