Results 51 to 60 of about 29,544,524 (159)
Giant linear strain gradient with extremely low elastic energy in a perovskite nanostructure array
Nature Communications, 2017 Inherent elastic strains are useful to tune the physical properties of functional materials but it is difficult to build. Here, Tanget al. report a fabrication of inhomogeneous strains with a linear gradient as giant as 106 per meter in a BiFeO3 ...
Y. L. Tang +4 more
doaj +1 more source
Metals, 2018 We investigated the TiFe precipitation behavior of solution heat-treated Ti-5Al-3.5Fe during isothermal aging, quantified the effect of precipitation on strengthening by evaluating the hardness, and compared it to the effect of Ti3Al precipitation in Ti ...
Hye-Jeong Choe +4 more
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Open-Cell Metal Foams for Use in Dehumidifying Heat Exchangers [PDF]
, 2012 Metal foams with an open-cell structure have physical and mechanical properties suggesting they might have advantages over conventional fin materials for use in air-cooling heat exchangers.
Jacobi, Anthony M. +3 more
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Non-metal with metal behavior: metal-free coordination-insertion ring-opening polymerization
, 2021 The “coordination-insertion” ring-opening polymerization (ROP) mechanism has so far been the monopoly of metal catalysts. In this work, we present a metal-free “coordination-insertion” ROP of trimethylene carbonate (TMC) and ε-caprolactone (ε-CL), as ...
Liu, Jingjing +6 more
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A vertical silicon-graphene-germanium transistor
Nature Communications, 2019 Graphene-base transistors were originally proposed for high-frequency applications, but the height of the emitter potential barrier limits the transistor performance towards the THz range. Here, the authors fabricate a vertical silicon-graphene-germanium
Chi Liu +4 more
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Hot top design and its influence on feeder channel segregates in 100-ton steel ingots
Materials & Design, 2015 The influence of hot top design on feeder channel segregates (F-CS) and centerline shrinkage porosities (C-SP) were investigated both experimentally and numerically.
Shengwen Qian +4 more
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Microstructural Stability and Softening Resistance of a Novel Hot-Work Die Steel
Crystals, 2020 A novel hot-work die steel, named 5Cr5Mo2, was designed to obtain superior thermal stability. The proposed alloy is evaluated in terms of its hardness, microstructure, and tempering kinetics.
Ningyu Du +6 more
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Sheet Metal Workers' International Association charter
, 1994 Sheet Metal Workers' International Association charter, local union #146, Springfield, Missouri. Legible names on the document include Charles G. Gibson, Gary L. Comer, Randy L. Smith, J. Michael Dailey, David V. Maples, William W. Newlon Jr., Donald L.
Sheet Metal Workers' International Association
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Characterization of Heat and Momentum Transfer in Sintered Metal Foams [PDF]
, 2008 In this study, metal foams made by the Slip Reaction Foam Sintering (SRFS)-process are investigated concerning their thermophysical and permeability properties.
Reutter, Oliver +4 more
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Journal of Materials Science: Materials in Medicineβ-titanium alloys attract great interest in surgical implants due to its low elastic modulus. The addition of Ag further enhances the strength, ductility, corrosion resistance and biocompatibility of such alloys, which optimizes their compatibility with ...
Xiqun Ma +8 more
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