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. The EBSD method provides wide possibilities in acquiring local crystallographic information. The conjunction of structures formed in states with high and low cooling rates in one sample is of interest. Chelyabinsk meteorite has the unique

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Arav, A., Zeron, Y. and Ocheretny, A. (2000): A new device and method for vitrification increases the cooling rate and allows successful cryopreservation of bovine oocytes. Theriogenology 53 ,248. A new device and method for

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Summary Using a thermal relaxation calorimetry technique, we have measured heat capacities of κ-(BEDT-TTF)4Hg2.89Br8 system under magnetic fields between 0 and 6 T. With the increase of cooling rate from room temperature to liquid helium temperature, we have observed a remarkable but systematic tendency that the thermal anomaly associated with the superconductive transition shifts to the lower temperatures. The course of this phenomenon is attributable to the degree of disorder in the mercury chains which give an incommensurate potential to the superconducting planes.

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associated with the HAZ, not with the weld metal [ 1 ]. One of the aspects that play an important role is the solidification rate. The cooling rate is normally not uniform during the solidification of the steel, e.g., in continuous casting or welding

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Abstract  

Non-isothermal crystallization and melting of metallocene-catalyzed polyethylene was analysed using the power-compensating calorimetry as function of both cooling rate and branch-degree ranging from 1 to 300 K min-1, and from 0 to 72 hexyl-branches per 1000 carbon atoms, respectively. Onset crystallization temperature decreases linearly with increasing logarithm of cooling rate. The slope of this dependence increases with increasing branch-degree, which is explained by a stronger inhibition of the crystallization by the branches and the decreasing diffusion rate of molecules. The melting endotherms reveal a clear reduction of the crystallinity in the entire temperature range with increasing cooling rate.

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The crystallization of Al-Ce alloys was studied by DTA. The melting and freezing DTA curves of the investigated alloys exhibit two peaks, corresponding to the transformations of a high-purity phase and the eutectic phase, respectively. The peaks could be separated during both freezing and melting by changing the heating or cooling rate. The final temperature of the phase transformation is marked by the starting temperature of the second peak. A slight shoulder on the DTA peak, even on the opposite side to the maximum point, may correspond to the final temperature.

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Central European Geology
Authors: Zsófia Pálos, István János Kovács, Dávid Karátson, Tamás Biró, Judit Sándorné Kovács, Éva Bertalan, Anikó Besnyi, György Falus, Tamás Fancsik, Martina Tribus, László Előd Aradi, Csaba Szabó and Viktor Wesztergom

examining olivine melt-inclusion water contents and comparing with subduction-related elements. To better visualize the volcanostratigraphic positions and the corresponding, supposed cooling rate, samples are presented on an overview figure, with each

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Abstract  

Supercooling suppression of microencapsulated n-tetradecane was measured using differential scanning calorimetry. Results indicate that the degree of supercooling is positively affected by the amount and type of nucleating agent present in bulk and microencapsulated n-tetradecane which it is used as a phase change material (MPCM). Results also demonstrate that the melting point of the n-tetradecane is fairly independent of nucleating agent concentration (0 – 4%). Conversely, the latent heat of fusion of n-tetradecane decreases considerably with nucleating agent amount and the initiation of crystallization point is inversely proportional to cooling rate.

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The glass transition temperatures of sorbitol and fructose were characterized by four points determined on DSC heating thermograms (onset, mid-point, peak and end-point), plus the limit fictive temperature. The variations of these temperature values, observed as functions of cooling and heating rates, were used to determine the fragility parameter, as defined by Angell [1] to characterize the temperature dependence of the dynamic behavior of glass-forming liquids in the temperature range above the glass transition.

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the modified Avrami analysis by Jeziorny and a combination of the Avrami and Ozawa methods developed by Mo. The crystal forms of P4MP1 samples after different cooling rates were discriminated by WAXD. Experimental

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