Incorporation of nanoalumina into a polymeric asphalt matrix: Reinforcement of the nanostructure, improvement of phase stability, and amplification of rheological parameters

AbstractPhase stability in alloys under irradiation is studied considering effective thermodynamic potentials. A simple kinetic model of a binary alloy with phase separation is investigated. Time evolution in the alloy results from two competing dynamics: thermal diffusion, and irradiation induced ballistic exchanges. The dynamical (steady state) phase diagram is evaluated exactly performing Kinetic Monte Carlo simulations. The solution is then compared to two theoretical frameworks: the effective quasi-interactions model as proposed by Vaks and Kamishenko, and the effective free energy model as proposed by Martin. New developments of these models are proposed to allow for quantitative comparisons. Both theoretical frameworks yield fairly good approximations to the dynamical phase diagram.

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Properties of nanocomposites based on isotactic polypropylene and high-pressure polyethylene with metal-containing nanofillers

Perspektivnye Materialy ◽

10.30791/1028-978x-2020-9-59-64 ◽

2020 ◽

pp. 59-64

Author(s):

N. I. Kurbanova ◽

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T. M. Gulieva ◽

N. Ya. Ischenko ◽

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...

Keyword(s):

High Pressure ◽

Synergistic Effect ◽

Polymer Matrix ◽

Isotactic Polypropylene ◽

Rheological Parameters ◽

Mechanochemical Method ◽

X Ray ◽

Effect Of Additives ◽

High Pressure Polyethylene ◽

Properties Of Composites

The effect of additives of nanofillers (NF) containing nanoparticles (NP) of copper oxide, stabilized by a polymer matrix of maleized polyethylene (MPE), obtained by the mechanochemical method, on the properties of composites based on isotactic polypropylene (PP) and high-pressure polyethylene (PE) was studied by X-ray phase (XRD) and thermogravimetric (TGA) analyzes. The enhancement of strength, deformation, and rheological parameters, as well as the thermo-oxidative stability of the obtained nanocomposites was revealed, which, apparently, is due to the synergistic effect of the interaction of copper-containing nanoparticles with anhydride groups of MPE. It is shown that nanocomposites based on PP/PE/NF can be processed both by pressing and injection molding and extrusion, which expands the scope of its application.

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Effect of rhenium and cobalt additions on the microstructure and gamma prime phase stability of vacuum arc melted modified nickel-based superalloys grade MGA 1400

Materials Testing ◽

10.3139/120.111361 ◽

2019 ◽

Vol 61 (7) ◽

pp. 609-617 ◽

Cited By ~ 3

Author(s):

Arpaporn Nararak ◽

Panyawat Wangyao ◽

Tanaporn Rojhirunsakool ◽

Gobboon Lothongkum

Keyword(s):

Phase Stability ◽

Vacuum Arc ◽

Gamma Prime ◽

Prime Phase

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ON THE USE OF SLAG CEMENT COMPOSITIONS IN THE CONSTRUCTION OF WELLS

Oil and Gas Studies ◽

10.31660/0445-0108-2017-3-80-85 ◽

2017 ◽

pp. 80-85

Author(s):

V. P. Ovchinnikov ◽

O. V. Rozhkova ◽

N. A. Aksenova ◽

P. V. Ovchinnikov

Keyword(s):

Blast Furnace ◽

Blast Furnace Slag ◽

Elevated Temperatures ◽

Cement Mortar ◽

Setting Time ◽

Rheological Parameters ◽

Slag Cement ◽

Furnace Slag

In the article studies of oil-filled compositions with the addition of blast-furnace slag for strength at elevated temperatures are presented. The rheological parameters of the slag cement slag cement mortar, as well as the setting time, were studied. Conclusions are drawn about the prospects of further study of slag cementcontaining compositions.

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