Synergetic effect of temperature and pressure on energetic and structural characteristics of {ZIF-8 + water} molecular spring

Nanoscale ◽  
2015 ◽  
Vol 7 (19) ◽  
pp. 8803-8810 ◽  
Author(s):  
Ya. Grosu ◽  
G. Renaudin ◽  
V. Eroshenko ◽  
J.-M. Nedelec ◽  
J.-P. E. Grolier
Keyword(s):  
Structural Characteristics ◽  
Synergetic Effect ◽  
Effect Of Temperature ◽  
Temperature And Pressure

Effect of temperature and pressure on mixed oxide solid solutions

2020 ◽  
Vol 117 ◽  
pp. 107965
Author(s):  
M.Yu. Petrushina ◽  
E.S. Dedova ◽  
K.V. Yusenko ◽  
A.S. Portnyagin ◽  
E.K. Papynov ◽  
...  
Keyword(s):  
Solid Solutions ◽  
Mixed Oxide ◽  
Effect Of Temperature ◽  
Temperature And Pressure

SOLUBILITY OF ETHYLENE IN WATER. EFFECT OF TEMPERATURE AND PRESSURE

1952 ◽  
Vol 44 (1) ◽  
pp. 211-212 ◽  
Author(s):  
E. J. Bradbury ◽  
Dorothy McNulty ◽  
R. I. Savage ◽  
E. E. McSweeney
Keyword(s):  
Effect Of Temperature ◽  
Water Effect ◽  
Temperature And Pressure

The Effect of Temperature and Pressure on Residual Stress in LPCVD Polysilicon Films

1992 ◽  
Vol 276 ◽  
Author(s):  
D-G. Oei ◽  
S. L. McCarthy
Keyword(s):  
Residual Stress ◽  
Deposition Temperature ◽  
Polycrystalline Silicon ◽  
Chemical Vapor ◽  
Effect Of Temperature ◽  
Pressure Chemical ◽  
Polysilicon Films ◽  
Oriented Polycrystalline ◽  
Temperature And Pressure ◽  
Reduced Pressures

ABSTRACTMeasurements of the residual stress in polysilicon films made by Low Pressure Chemical Vapor Deposition (LPCVD) at different deposition pressures and temperatures are reported. The stress behavior of phosphorus (P)-ion implanted/annealed polysilicon films is also reported. Within the temperature range of deposition, 580 °C to 650 °C, the stress vs deposition temperature plot exhibits a transition region in which the stress of the film changes from highly compressive to highly tensile and back to highly compressive as the deposition temperature increases. This behavior was observed in films that were made by the LPCVD process at reduced pressures of 210 and 320 mTORR. At deposition temperatures below 590 °C the deposit is predominantly amorphous, and the film is highly compressive; at temperatures above 610 °C (110) oriented polycrystalline silicon is formed exhibiting high compressive residual stress.

scholarly journals NEAR HYDRATION OF SINGLY CHARGED MONOATOMIC IONS IN EXTREMELY DILUTED SOLUTIONS: THE EFFECT OF TEMPERATURE AND PRESSURE

2021 ◽  
pp. 24-31
Author(s):  
Viktor Ivanovych Булавин ◽  
Ivan Nikolajevych V’unik ◽  
Andrii Viktorovych Kramarenko ◽  
Alexandr Ivanovych Rusinov
Keyword(s):  
Ion Solvation ◽  
Effect Of Temperature ◽  
Temperature Growth ◽  
Translational Displacement ◽  
Na Ions ◽  
Extremely Diluted Solutions ◽  
Temperature And Pressure ◽  
Singly Charged ◽  
Direction Opposite ◽  
Structure Breaking

The diffusion coefficient  and the distance of translational displacement of Li+, Na+ K+, Cs+, Cl– and Br– ions  in water at 298.15 K – 423.15 K (25 K step) and pressure from 0.0981 to 784.5 MPa (98.1 MPa step) were calculated from the literature data on limiting molar electrical conductivity. The  values for these ions increase with pressure growth from 0.0981  to 98.1 MPa at 298.15 K. Further pressure increase (up to 785 MPa) leads to decrease in . Temperature growth under isobaric conditions leads to an increase in . Parameter (– ri) (deviation from the Stokes–Einstein law, ri is ion structural radius) was used as a criterion for the type of ion solvation. It is shown that Li+ and Na+ ions behave as cosmotropes, or positively solvated structure–forming ions having (– ri) > 0. The Cs+, Cl–, Br– ions behave as chaotropes, or negatively solvated structure–breaking ions having (– ri) < 0. For the K+ ion, the (– ri) deviation is alternating. At 0.0981 MPa and 298.15 K, the K+ ion is a chaotrope. But at 320 K (Tlim) parameter (– ri) = 0. It corresponds to the transition from negative to positive solvation. Above Tlim at P = const, the K+ ion is a cosmotrope. At 298.15 K and up to 98.1 MPa, the pressure causes the same change in the (– ri) deviation as the temperature. On the contrary, at 320 K and higher, the pressure affects the near hydration in the direction opposite to the temperature.

scholarly journals Study of synergetic effect of the complex polycarboxylate anti-corrosion additive in the model of pore concrete fluid

Vestnik MGSU ◽  
2020 ◽  
pp. 824-833
Author(s):  
Linar N. Talipov ◽  
Evgeny G. Velichko ◽  
Vyacheslav S. Semenov
Keyword(s):  
Sodium Nitrite ◽  
Electron Probe Microanalysis ◽  
Electron Probe ◽  
Structural Characteristics ◽  
Synergetic Effect ◽  
Gel Permeation Chromatography ◽  
13C Nmr Spectroscopy ◽  
Protective Film ◽  
Film Layer ◽  
Pore Liquid

Introduction. Corrosion of reinforcement in concrete structures is rather expensive for the economy of any country. Current statutory documents offer two main directions — primary and secondary protection. One of the promising areas of primary protection methods is the use of complex anti-corrosion additives in concrete due to its technological simplicity and economic efficiency. Passivators and surfactants (SAS), as components of such additives, are of particular interest. Sodium nitrite is offered as a passivator, and polycarboxylate molecules (PCE) — as a SAS. The additive of sodium nitrite together with PCE has a visual synergistic effect. Materials and methods. Identification of structural characteristics of the molecules of the obtained PCE polymers was determined by methods of exclusion gel-permeation chromatography and 13C NMR spectroscopy. To study the synergetic effect of NaNO2 + PCE additive, the samples were kept in the models of pore liquid, after which the morphology of their surface was studied by methods of scanning electron microscopy and electron probe microanalysis. Results. The texture and surface color of the presented micrographs indicate surface formations on the samples stored in the models of pore liquid with different anti-corrosion additives. Electron probe microanalysis showed increased concentrations of carbon, oxygen and sodium on the surface of samples stored in pore concrete liquid models with the addition of a complex anti-corrosion additive of sodium nitrite and PCE, which indicates increased concentrations of PCE and possible increased pH on the steel surface. Based on the data acquired, the mechanism of formation of a protective film layer using complex anti-corrosion additive NaNO2 + PCE is offered. Conclusions. Justification of synergetic effect of complex polycarboxylate anti-corrosion additive in the model of concrete pore liquid opens up prospects for research of such additives to the concrete model.

scholarly journals Four Types of LME Cracks in RSW of Zn-Coated AHSS

2020 ◽  
Vol 99 (3) ◽  
pp. 75s-92s ◽  
Author(s):  
SIVA PRASAD MURUGAN ◽  
◽  
YEONG-DO PARK ◽  
VIJEESH VIJAYAN ◽  
CHANGWOOK JI
Keyword(s):  
Tensile Stress ◽  
Synergetic Effect ◽  
High Strength Steels ◽  
High Strength ◽  
Liquid Zinc ◽  
Effect Of Temperature ◽  
Advanced High Strength Steels ◽  
Type D ◽  
The Difference

Zinc-coated advanced high-strength steels are known to be susceptible to liquid metal embrittlement (LME) cracking during resistance spot welding (RSW). Despite numerous reports with regard to LME during RSW, a systematic approach has not been proposed for the classification of cracks based on the cracking mechanism. The objective of this study was to characterize the LME cracks at various RSW locations, and thereby propose a classification method to identify the mechanism of the LME cracks at each location. The experimental results revealed the LME cracks were concentrated at certain weld locations and exhibited different features in terms of length, number, and orientation, owing to the synergetic effect of temperature, stress, microstructure, time of exposure to liquid zinc, and time of exposure to tensile stress at the corresponding lo-cations. Thus, the LME cracks were classified into four categories, namely type A, type B, type C, and type D, based on the formation location. The effect of time of exposure to liquid zinc and tensile stress on LME cracking revealed the time dependency of LME in RSW. The nature of contact be-tween the electrode and the sheet, and the heat input during welding, were found to be the main reasons for the difference in the thermal, mechanical, and metallurgical characteristics of various crack locations, which caused the formation of various LME crack types.

Enhanced thermoelectric performance of layered SnS crystals: the synergetic effect of temperature and carrier concentration

RSC Advances ◽  
2015 ◽  
Vol 5 (69) ◽  
pp. 56382-56390 ◽  
Author(s):  
Bao-Zhen Sun ◽  
Zuju Ma ◽  
Chao He ◽  
Kechen Wu
Keyword(s):  
Carrier Concentration ◽  
Synergetic Effect ◽  
Thermoelectric Performance ◽  
Effect Of Temperature ◽  
Effects Of Temperature

The synergistic deployment of the effects of temperature and carrier concentration raises the ZT of SnS to a high value (1.61 ± 0.02).

Experimental study on graphene-based nanocomposite membrane for hydrogen purification: Effect of temperature and pressure

2019 ◽  
Vol 330 ◽  
pp. 16-23 ◽  
Author(s):  
Rahman Zeynali ◽  
Kamran Ghasemzadeh ◽  
Alireza Behrooz Sarand ◽  
Farshad Kheiri ◽  
Angelo Basile
Keyword(s):  
Experimental Study ◽  
Nanocomposite Membrane ◽  
Effect Of Temperature ◽  
Hydrogen Purification ◽  
Temperature And Pressure
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