منابع مشابه
Tensile Creep of Polycrystalline Near-Stoichiometric NiAl
Long term tensile creep studies were conducted on binary NiAl in the temperature range 700-1200 K with the objectives of characterizing and understanding the creep mechanisms. Inverse and normal primary creep curves were observed depending on stress and temperature. It is concluded that the primary creep of NiAl is limited by dislocation mobility. The stress exponent for creep, n, decreased fro...
متن کاملFish Antifreeze Proteins and the Creep of Polycrystalline Ice
Creep polycrystalline ice samples antifreeze glycopeptides re-accelerating or tertiary samples. Previous work grain-boundary migration consistent with this, as nucleation and growth of curves containing (AFGPs) creep that has shown obtained from the low concentrations of do not show the is found in pure ice that AFGPs inhibit in ice and the present results are tertiary creep is associated with ...
متن کاملMechanisms of creep deformation in polycrystalline Ni-base disk superalloys
Mechanisms of creep deformation in polycrystalline Ni-base disk superalloys R.R. Unocic a,∗, G.B. Viswanathan a, P.M. Sarosi a, S. Karthikeyan b, J. Li a, M.J. Mills a a Department of Materials Science and Engineering, The Ohio State University, 477 Watts Hall, 2041 College Road, Columbus, OH 43210, USA b Department of Materials Engineering, Indian Institute of Science Bangalore, Karnataka 5600...
متن کاملHydrolysis Characteristics of Polycrystalline Lithium Hydride Powders and Sintered Bulk
Ambient hydrolysis products in moist air and hydrolysis kinetics in argon with humidity of RH1.5% for polycrystalline LiH powders and sintered bulks were investigated by X-ray diffraction, Raman spectroscopy and gravimetry. The results showed that the hydrolysis products made up a layered structure of LiOH•H2O/LiOH/Li2O from surface of the sample to inside. In low humid argon atmosphere, the pr...
متن کاملRefractive Index of Lithium Fluoride Ramp Compressed to 800 GPa
LLE Review, Volume 126 59 Introduction The transition of an insulator to a metal (metallization) at high compression is generally the result of pressure-induced closure of the band gap.1–4 Lithium fluoride’s (LiF’s) largeband-gap and ionic crystalline structure produces its uniquely high ultraviolet transmissivity. Two rare-gas solids, He and Ne, have anomalously high metallization pressures be...
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ژورنال
عنوان ژورنال: Philosophical Magazine
سال: 1968
ISSN: 0031-8086
DOI: 10.1080/14786436808227749