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2.298 Aktuelle Fachpublikationen zum Thema temperature

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Some New Observations on Activation Energy of Crystal Growth for Thermally Activated Crystallization

03.02.2016 | N. Mehta; A. Kumar, Journal of Physical Chemistry B, 2016

Calorimetric study of glass/crystal phase transformation in disordered semiconductors is a significant tool for understanding their crystallization kinetics. Such studies provide the basis for practical application of glasses. Differential scanning calorimetry (DSC) is one of the advanced ...

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Onset of Cooperative Dynamics in an Equilibrium Glass-Forming Metallic Liquid

03.02.2016 | Abhishek Jaiswal; Stephanie O’Keeffe; Rebecca Mills; Andrey Podlesynak; Georg Ehlers; Wojciech Dmowski; Konstantin L ..., Journal of Physical Chemistry B, 2016

Onset of cooperative dynamics has been observed in many molecular liquids, colloids, and granular materials in the metastable regime on approaching their respective glass or jamming transition points, and is considered to play a significant role in the emergence of the slow dynamics. However, the ...

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Morphology and dynamical mechanical properties of poly ether ketone ketone (PEKK) with meta phenyl links

02.02.2016 | Luis Quiroga Cortés, Nicolas Caussé, Eric Dantras, Antoine Lonjon, Colette Lacabanne, Journal of Applied Polymer Science, 2016

ABSTRACT Poly ether ketone ketone (PEKK) with different proportion of meta phenyl links were investigated by combining differential scanning calorimetry and dynamic mechanical analysis. The influence of the Terephthalyl/Isophthalyl isomers (T/I) ratio on the vitreous phase is mild, the shift ...

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Hollow Microtube Resonators via Silicon Self-Assembly toward Subattogram Mass Sensing Applications

02.02.2016 | Joohyun Kim; Jungki Song; Kwangseok Kim; Seokbeom Kim; Jihwan Song; Namsu Kim; M. Faheem Khan; Linan Zhang; John E. ..., Nano Letters, 2016

Fluidic resonators with integrated microchannels (hollow resonators) are attractive for mass, density, and volume measurements of single micro/nanoparticles and cells, yet their widespread use is limited by the complexity of their fabrication. Here we report a simple and cost-effective approach ...

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Materials, Vol. 9, Pages 83: Flexural Strength of Preheated Resin Composites and Bonding Properties to Glass-Ceramic and Dentin

29.01.2016 | Kramer, Matthias Richard; Edelhoff, Daniel ; Stawarczyk, Bogna, Materials, 2016

To test the impact of preheating (25, 37, 54, or 68 °C) of TetricEvoCeram (TEC), FiltekSupremeXT (FSXT), and Venus (V) on flexural strength (FS), shear bond strength (SBS) and interfacial tension (IFT). FS was tested with TEC and FSXT. For SBS, glass-ceramic and human dentin substrate were ...

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An m‐phenylenediamine‐based benzoxazine with favorable processability and its high‐performance thermoset

28.01.2016 | Shitong Ren, Xin Yang, Xiaojuan Zhao, Ying Zhang, Wei Huang, Journal of Applied Polymer Science, 2016

ABSTRACT A novel aromatic diamine‐based benzoxazine (P‐mPDA) is successfully synthesized from m‐phenylenediamine (m‐PDA), 2‐hydroxybenzaldehyde, and formaldehyde. The polymerization behavior of P‐mPDA and the properties of its thermoset are studied. The results indicate that P‐mPDA owns ...

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Layer Effects on the Magnetic Behaviors of Aurivillius Compounds Bin+1Fen−3Ti3O3n+1 (n = 6, 7, 8, 9)

28.01.2016 | Guopeng Wang, Yan Huang, Shujie Sun, Jianlin Wang, Ranran Peng, Yalin Lu, Journal of the American Ceramic Society, 2016

Bin+1Fen−3Ti3O3n+1 (BFT‐n, n = 6, 7, 8, 9) ceramics were prepared using Pechini's method and their magnetic behaviors were investigated. XRD and HRTEM results suggested that BFT‐n have the pure Aurivillius structure. Magnetic properties of BFT‐n depend largely on their layer numbers. BFT‐6 ...

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Photoelectrochemical water splitting using WO3 photoanodes: the substrate and temperature roles

27.01.2016 | Paula Dias; Tânia Lopes; Laura Meda; Luisa Andrade; Adélio Mendes, Physical Chemistry Chemical Physics, 2016

The influence of the substrate on the performance of WO3 photoanodes is assessed as a function of the temperature. Two samples were studied: WO3 deposited on a FTO glass and anodized on a tungsten foil. Current-voltage curves and electrochemical impedance spectroscopy measurements were used to ...

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Scaffolded Thermally Remendable Hybrid Polymer Networks

25.01.2016 | Gayla Berg Lyon, Austin Baranek, Christopher N. Bowman, Advanced Functional Materials, 2016

Step‐growth Diels–Alder (DA) networks using furan and maleimide groups are particularly useful in forming thermally remendable crosslinked polymers, due to the dramatic shift in equilibrium over a relatively low temperature range as compared with other diene‐dienophile pairs. However, the ...

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“Effect of miscibility on mechanical and thermal properties of poly(lactic acid)‐poly(caprolactone) blends”

25.01.2016 | J.M. Ferri, O. Fenollar, A. Jorda‐Vilaplana, D. García‐Sanoguera, R. Balart, Polymer International, 2016

Abstract In this work, binary blends based on poly(lactic acid)‐PLA and poly(caprolactone)‐PCL were prepared by melt mixing in a twin screw co‐rotating extruder in order to increase the low intrinsic elongation at break of PLA for packaging applications. Although PLA and PCL show low ...

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