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  • br Acknowledgment br Experimental design

    2018-11-14


    Acknowledgment
    Experimental design, materials and methods In the current work, four chalcogenide glasses with nominal atomic compositions described by SeGeIn were synthesized in from elemental Se, Ge and In (all elements were of 99.99% purity) by sealing the required quantities in quartz ampoules under a pressure of 10−3Pa and heating at a rate of 2K/min up to 1273K under continuous vibration stirring [1]. Then the samples were rapidly quenched in a mixture of water and ice and the resulting glasses were studied by XRD and EXAFS.
    Conclusions From the data, shown in Fig. 4 as the relationship between cluster binding IWR-1-endo and average coordination of cluster centers, a number of consistent conclusions were drawn Note on data files Data files underlying to this work are
    Specifications table
    Value of the data
    Data, experimental design, materials and methods
    Specifications table
    Value of the data
    Data, experimental design, materials and methods
    Acknowledgements We would like to thank Dr Elizabeth Muir, University of Cambridge for providing the rat schwann cell line (SCTM41) for our experimental purpose. We further thank and acknowledge Central Silk Board, Bengaluru, Govt of India and Department of Biotechnology, New Delhi, Govt of India for providing partial funding support for this work. SD would like to thank IIT Guwahati and Ministry of Human Resource Development (MHRD), Govt of India.
    Data, experimental design, materials and methods
    Analysis of the stress relaxation curve Two types of stress serrations were shown in the stress curve, including stress wave and sharp stress jump. The first type [1,2] was detailed studied by origin software. First the data of stress and time was imported into the software, and then abstract the interested part of the data and draw out the stress–time curve. A baseline should be created through the function of “create baseline” in “peak analyzer”. By this, the baseline data would be created and output in a new column. Based on this, the baseline data could be subtracted from the stress curve. To do this, the function of “fit peaks (pro)” would be employed in the “peak analyzer” menu. However, during this process, the baseline data location would be assigned. The data of peaks and fitting data would all be outputted in the worksheet. The integrated picture is shown in Fig. 1.
    Analysis of the XRD results The spectrum of XRD gave results to determine the particle nature and the precipitation amount during deformation. However, the analysis of them should be very precise, since the slight change in the data would greatly affect the final results. Firstly, the spectrum of the specimen should be smoothed with parabolic filter of 13 points, and then justified by using the internal standard method (ISTD) with Si2O spectrum. After that, the spectrum should strip the background and K-alpha2 at the same time. When all the above steps were done, the phase search would be processed. The diffraction spectrum fitted well with the α-Fe energy spectrum. The spectrum result of D940 specimen, indicated with the value of diffraction lattice plane, the interplanar crystal spacing, and the 2theta are shown in Fig. 2. Since the closer the theta value approached 90, the more accurate the outcome became, the diffraction of lattice plane at (222) was chosen to be respective. The processed result is shown in Fig. 3.
    Microstructure The microstructure experienced metadynamic recrystallization (MDRX) when the steel was deformed at 900°C, although no phase transformation took place, as indicated in Fig. 4. The MDRX governs the subsequent post-dynamic softening once the strain reaches the critical value [3,4]. Thus, the MDRX initials at 900°C and refines the grains more effectively. However, since the temperature was not high enough for the grains to grow efficiently, the grains exhibited necklace-type morphology.