Materials Literature
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The structures of the functions that can be used to describe the plastic deformation and creep deformation of metals are studied. Equations based on an additivity condition are obtained, and examples of the application of the solutions to these equations for determining stresses are given.
Abstract Magnetic properties of multi‐walled carbon nanotubes (MWCNT) modified with cobalt were studied in detail in the temperature range (4.2–290) K. MWCNT which encapsulate Co nanoparticles were obtained using CVD methods. The low temperature SQUID magnetization measurements were supplemented by structural investig…
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Scaling laws of magnetic minor hysteresis loops for heavy rare-earth metals Er and Dy were studied. We found that there exists a scaling power law between hysteresis loss and remanence of minor loops with a constant exponent of 1.2–1.3 in the low-temperature ferromagnetic phase below T c as was commonly observed in so…
The corrosion behavior of bulk nanocrystalline Cu prepared by inert gas condensation and in-situ warm compress technique was investigated in 0.1 M HNO3 using immersion test, potentiodynamic polarization test, scanning electron microscope and electrochemical impedance spectroscopy. Compared with coarse-grained Cu, nano…
Acoustic emission (AE) during hydrogen-induced cracking (HIC) of low-carbon pipeline steel immersed into H2S containing media was investigated aiming at discriminating between damage mechanisms and getting a better insight on the kinetics of damage. Two kinds of steel samples - sensitive and resistant to hydrogen indu…
Environmentally friendly cellulose nanofiber green composites were newly developed by combining two dispersion-type biodegradable resins: polylactic acid (PLA) and chemically modified starch, and cellulose nanofibers of two kinds. The nanoscale cellulose fibers were prepared by homogenization of wood pulp. The 10–100…
Reaction of [Tb(III)(DMSO)(8)](CF(3)SO(3))(3) with a resorcinarene cavitand substituted by four -CH(2)P(O)Ph(2) pendant arms afforded an infinite 1D inorganic polymer, in which the consecutive resorcinarene units are linked through two terbium strands, this connection involves pairs of phosphoryl groups occupying adja…
The effect of five compounds of ethoxylated fatty esters with different number of ethylene oxide units on the corrosion of copper in 1 M HNO 3 solution has been studied using weight loss and galvanostatic polarization techniques. The inhibition efficiency was found to increase with increasing concentration and number…
Effects of blending poly(lactic acid) (PLA) with poly(ethylene glycol) (PEG) on higher-order crystalline structures of PEG were examined using small-angle X-ray scattering (SAXS). For this purpose, the fact that two polymers are both crystalline makes situtation much complicated. To simplify, non-crystalline PLA is su…
Poly(trimethylene carbonate) (PTMC) and polylactide (PLA) are of great interest for use in various biomedical materials. To characterizethe surface properties, we measuredtheirstatic water contact angle and the feasibility for immobilization of proteins on various surfaces. The measured contact angles indicated that a…
The results of a critical analysis of the state-of-the art in the area of the development and prospects of development of different kinds of heat-resistant carbonaceous composite materials (CCM), complex investigation of their structure and oxidation resistance are presented. Attention is focused on home-made CCMs wit…
The oxygen diffusivity of hexagonal barium titanate by the tracer method and its dielectric constants have been evaluated. The oxygen diffusivity of hexagonal barium titanate does not show any direction dependency along [0001] and [1000] directions in lattice. Because of the face-shared position is more favorable posi…
In the present study, degradation properties of the polymer blends of Poly(lactic acid) (PLA) and Poly(butylene succinate) (PBSU) with different mixed fractions were investigated. PLA/PBSU(50/50) exhibited the highest water absorption during hydrolysis tests because water absorption was accelerated due to the existenc…
In this study, surface characteristics and cell proliferation of mechanical sandblasted Ti-30Ta-xNb surface have been investigated. Samples with three different surface preparations were used: 0.3um polished, 50um and 100um HA sandblasted. Cell culture on the specimen surface was performed with mouse osteoblast-like c…
Since the adoption of ISO/IEC 17025, testing laboratories have been required to perform Measurement Uncertainty analysis for the tests within their scope. Four points of recurring debate are discussed: (1) The variability in fire test results due to unforeseen/uncontrolled variables is generally far greater than the m…
Morphological structure and growth process of LbL nanostructured films from nickel tetrasulfonated phthalocyanine (NiTsPc) alternated with polyallylamine hydrochloride (PAH) were investigated. The experimental results of UV-visible adsorption kinetics (modeled by Johnson-Mehl-Avrami functions) and AFM images analyzes…
In this study, the effect of PS on the mechanical, thermal and morphological properties of SEBS and SIS type elastomers -based shoe sole material was investigated in flow direction 0o and flow direction 90o. The structure and properties of the composites are characterized using a scanning electron microscopy (SEM), Di…
The transmission of electrons with incident energies 300–1000 eV through single glass capillary samples of macroscopic dimensions has been investigated. The transmitted spectra for all energies indicate dominance of inelastic electrons as the tilt angle ψ increases, with the ratio of inelastically to elastically trans…
Patterned cathodes with composition (La 0.87 Ca 0.13 ) 0.95 MnO 3 (LCM) were fabricated by rf-magnetron sputter deposition on 8 mol% yttria-doped zirconia (YSZ) substrates to have a constant LCM/YSZ contact area of 0.8 cm 2 , but have triple phase boundary (TPB) lengths ranging from 450-1600 cm cm -2 .Electrochemical…