Results 51 to 60 of about 267,967 (278)
Alternating Tip Splitting in Directional Solidification [PDF]
Physical Review Letters, 2001 Physical Review ...
Utter, B. +2 more
openaire +3 more sources
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To identify inflammatory analytes in cerebrospinal fluid (CSF) and plasma associated with cognitive decline in cognitively normal (CN) older adults at risk for Alzheimer's disease (AD). Methods In a longitudinal study of 118 CN older adults (65–80 years, 54% APOE ε4, 26% preclinical AD), 1331 CSF and 1501 plasma analytes were ...
Jagan A. Pillai +13 more
wiley +1 more source
Thermodynamic Assessment of Mushy Zone in Directional Solidification
Archives of Foundry Engineering, 2015 Solidification of AlSiFe alloys was studied using a directional solidification facility and the CALPHAD technique was applied to calculate phase diagrams and to predict occurring phases.
Mikołajczak P., Ratke L.
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The solidification characteristics of near rapid and supercooling directional solidification [PDF]
Science and Technology of Advanced Materials, 2001 In the comparison of the solidification characteristics of supercooling directional solidification (SDS) with constrained directional solidification (DS) and with the consideration of the inheritance of supercooled melt, the SDS technique established with the combination of melt supercooling and traditional DS was proposed.
Hengzhi Fu, Faqin Xie
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Directional solidification in two and three dimensions
Physical Review Letters, 1993 A symmetric phase-field model is used to study directional solidification in two and three dimensions. Numerical evidence of tip-splitting, breathing modes, solitary modes, and other non-steady-state behavior is seen in 2D. A simple model for the breathing modes is proposed. Finally, 3D simulations indicate a hexagonal ordering of cells.
Grossman, Bruno +3 more
openaire +4 more sources
Lamellar orientation control in directionally solidified TiAl intermetallics [PDF]
China Foundry, 2014 TiAl-based alloys are potentially used as high-temperature structural materials with a high specific strength in the range of ~ 900 °C. However, the mechanical properties of TiAl-based alloys are extremely anisotropic with respect to the lamellar ...
Su Yanqing, Liu Tong, Li Xinzhong
doaj
On Directional Dendritic Growth and Primary Spacing—A Review
Crystals, 2020 The primary spacing is intrinsically linked with the mechanical behavior of directionally solidified materials. Because of this relationship, a significant amount of solidification work is reported in the literature, which relates the primary spacing to ...
Joel Strickland +2 more
doaj +1 more source
Design of a Multistable Finger Prosthesis with Programmable Metamaterials
Advanced Engineering Materials, EarlyView.This research article shows the development of a multistable programmble metamaterial for the use as a finger prosthesis. The material was designed on different hierarchical levels where the influence of geometrical parameters and combination of mechanical elements was explored.
Franziska Wenz +5 more
wiley +1 more source
In-situ observations of dendritic fragmentation during directional solidification of Sn-10wt.% Bi alloy [PDF]
China Foundry, 2019 The stray crystals seriously affect the properties of metals which fabricated by directional solidification (DS). In order to observe the formation of the stray crystals, the growth behavior of Sn-10wt.%Bi alloy was observed by synchrotron X-ray imaging ...
*Ji-hui Luo
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Advanced Engineering Materials, EarlyView.This study examines Invar composites reinforced with titanium carbide (TiC) and titanium nitride (TiN) using laser powder bed fusion (LPBF). It presents the influence of reinforcements on microstructure, tensile properties, and thermal expansion. Results show that TiC effectively strengthens Invar while maintaining low thermal expansion, whereas TiN ...
Ayodeji Nathaniel Oyedeji +3 more
wiley +1 more source