Melting of indium

Why do the enthalpy diagrams for the melting of indium and low density polyethylene differ from one another What does the breadth of the melting peak tell us about the polymer under study ... 

FIGURE 2.30 (a) DSC trace for the melting of indium metal (b) integration of the power data to give... 

FIGURE 2.1 The effect of heating rate on the onset of melting of indium. 

The Effect That Changing the Data Sampling Rate Has upon the Measured Values for the Melting of Indium... 

Change of the Onset of Melting of Indium as a Function of the 6ample Mass... 

Figure 4.40. Quasi-isothermal melting of indium using a heat-flux calorimeter with control of the modulation at the sample temperature (sinusoidal modulation, the indicated sample temperatures are uncorrected) [52].

The determination of the onset, peak and end temperatures of the en-dotherms and exotherms. (Needs only temperature calibration, best to 0.1 K, if fully pre-calibrated with about five strategically spaced standards, and checked weekly with the melting of indium the preliminary run can be used for this determination.)... 

Table 3.15 Data for determination of RC from DTA curve for melting of indium (heating rate 20 K min", size of sample 17.13 mg) [46]...

Figure 2.81. Effect of heating rate on a DSC ordinate during the melting of indium. Purge gas nitrogen. Perkin-Elmer DSC7. The instrument was calibrated at a rate of heating of 20°C/min [Bair 1994 reprinted with permission of ASTM International]...

Figure 3.2 Schematic thermogram Illustrating the melting of indium...

Calibration of DTA and DSC instruments is usually carried out using standards with well-characterized and tested transition temperatures and enthalpies of reaction for example, the melting of indium occurs at 156.6°C and absorbs 28.7 J g while zinc melts at 419.4°C and absorbs 111.2 J g". ... 

The first NMR measurements of In(III) salts in aqueous solution were reported in the 1950s. However, " In has a relatively large quadrupole moment which reduces its observability. " In NMR studies of indium complexes in solids or melts of indium metals, alloys and salts have been carried out. Relatively few experimental results are available in... 

Passive temperature monitors can be used to determine the maximum temperature a substrate has reached in processing. Passive temperature monitors involve color changes, phase changes (e.g. melting of indium), or crystallization of amorphous materials. 

Figure 2 - Melting of Indium as a Function ofSpecimen Thickness and Probe Dimension Observed in TMAl Using the 0.9 mm Diameter Flat Probe With and Without Quartz Disk...

To determine the influence of heating rate on furnace gradient, the melting of indium pieces both atop and below the 10 mm thick glass support was examined at the same... 

One of the most significant benefits from fast scanning is the resultant increase in sensitivity. The faster the scan rate, the bigger the size of the peak or step that is measured, which is evident from the melting of indium as shown in Figure 2.1 above and also the increase in the size of the Tg measurement in Figure 2.6. 

Thermal resistance constant (Ro) In a DSC this is a measure of the resistance to the flow of energy input into a sample. Usually measured from the leading edge of the melt of indium it gives a measure of the rate of flow of energy into a sample, taking into account that the instrumental pathway energy must flow before it reaches the sample. 

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