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1.936 Aktuelle Fachpublikationen zum Thema temperature

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On the Mechanism of Activated Transport in Glassy Liquids

13.11.2014 | Vassiliy Lubchenko; Pyotr Rabochiy, Journal of Physical Chemistry B, 2014

We explore several potential issues that have been raised over the years regarding the “entropic droplet” scenario of activated transport in liquids, due to Wolynes and co-workers, with the aim of clarifying the status of various approximations of the random first-order transition theory (RFOT) ...


On the Super‐Elastic and Phase Transformation of a Novel Ni‐Rich/NiTiCu Bi‐Layer Thin Film

11.11.2014 | Maryam Mohri, Mahmoud Nili‐Ahmadabadi, Julia Ivanisenko, Advanced Engineering Materials, 2014

Shape memory Ni–Ti‐based thin films were deposited on glass substrates at room temperature by DC magnetron sputtering system from alloy targets. Two discs of Ti‐rich targets (Ni41Ti54Cu5 and Ni47Ti53) were used to deposit two single‐layers with chemical compositions of Ni45Ti50Cu5 and ...


Design, polymerization, and properties of polyurethane elastomers from miscible, immiscible, and hybridized seed‐oil derived soft segment blends

11.11.2014 | Mark F. Sonnenschein, Valeriy V. Ginzburg, Adam L. Grzesiak, Klaus Schiller, Benjamin L. Wendt, Journal of Polymer Science Part A: Polymer Chemistry, 2014

ABSTRACT Polyester seed‐oil derived polyols have been prepared and blended with conventional polyols for making polyurethane elastomers. Miscibility was complete for polypropylene oxide/polyethylene oxide and polytetramethylene oxide (PTMEG). Blends of polyester seed‐oil derived polyols with ...


Etching of glass microchips with supercritical water

11.11.2014 | Pavel Karásek; Jakub Grym; Michal Roth; Josef Planeta; František Foret, Lab on a Chip, 2014

A novel method of etching channels in glass microchips with the most tunable solvent, water, was tested as an alternative to common hydrogen fluoride-containing etchants. The etching properties of water strongly depend on temperature and pressure, especially in the vicinity of the water critical ...


Effect of Isomerism on Molecular Packing and Gas Transport Properties of Poly(benzoxazole-co-imide)s

11.11.2014 | Yongbing Zhuang; Jong Geun Seong; Yu Seong Do; Hye Jin Jo; Moon Joo Lee; Gang Wang; Michael D. Guiver; Young Moo Lee, Macromolecules, 2014

A facile approach to synthesize poly(benzoxazole-co-imide)s without thermal rearrangement at high temperature is proposed. Poly(benzoxazole-co-imide)s with improved mechanical and solution-processable properties were prepared through polycondensation of 4,4′-(hexafluoroisopropylidene) diphthalic ...


Insulating and Other Physical Properties of CoO‐Doped Zinc Oxyfluoride‐Borate Glass‐Ceramics

07.11.2014 | Padamati Naresh, Goli Naga Raju, Yerramreddy Gandhi, Michal Piasecki, Nalluri Veeraiah, Journal of the American Ceramic Society, 2014

Zinc oxy fluoro borate glasses mixed with different concentrations of CoO (ranging from 0 to 2.0mol%) are synthesized and subsequently crystallized. The scanning electron microscopy pictures have exhibited crystallinity. Differential scanning calorimetric studies have indicated that the ...


Toughening modification of (Acrylonitrile‐styrene‐acrylic copolymer)/(α‐Methylstyrene‐acrylonitrile copolymer) binary blend via using different impact modifiers

06.11.2014 | Wenqiang Zhu, Bo Xiang, Jun Zhang, Journal of Vinyl and Additive Technology, 2014

In this work, different impact modifiers such as acrylic resin impact modifier, chlorinated polyethylene (CPE), nitrile rubber, powdered nitrile rubber, and hydrogenated nitrile rubber, were chosen to improve the toughness of (acrylonitrile‐styrene‐acrylic ...


Formation of Bi2ZnB2O7 Nanocrystals in ZnO–Bi2O3–B2O3 Glass Induced by Femtosecond Laser

05.11.2014 | Zhao Liu, Huidan Zeng, Xiaoming Ji, Jing Ren, Guorong Chen, Junyi Ye, Ye Dai, Ya Cheng, Journal of the American Ceramic Society, 2014

We report on the formation of Bi2ZnB2O7 crystal structures with designated patterns in ZnO–Bi2O3–B2O3 glass by femtosecond laser direct writing. The crystallization mechanism in glass is investigated by crystallization kinetics analysis and simulation of the three‐dimensional temperature field ...


Torrefied biomass‐polypropylene composites

04.11.2014 | Bor‐Sen Chiou, Diana Valenzuela‐Medina, Mark Wechsler, Cristina Bilbao‐Sainz, Artur K. Klamczynski, Tina G. Williams ..., Journal of Applied Polymer Science, 2014

ABSTRACT Torrefied almond shells and wood chips were incorporated into polypropylene as fillers to produce torrefied biomass‐polymer composites. The composites were prepared by extrusion and injection molding. Response surface methodology was used to examine the effects of filler ...


Physicothermal Properties of Aqueous Sodium Chloride Solutions

03.11.2014 | G.R. Carvalho, F. Chenlo, R. Moreira, J. Telis‐Romero, Journal of Food Process Engineering, 2014

Abstract Physicothermal properties of sodium chloride solutions as complementary information to the existent in literature were experimentally measured under different conditions of mass concentration (in the range of 0.040 kg NaCl/kg solution to 0.240 kg NaCl/kg solution) and temperature ...


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