Reproducibility of Aluminum Alloy
Two different samples of aluminium alloy (Al-Mg-Si) were measured with the DSC 404 F3 Pegasus®
during heating and cooling. Melting and also solidification of the
alloy is clearly visible in the measurement results. The differences
between the two different samples, however, are small. The
characteristic temperatures (onset, peak) agree all within 0.3 K. The
differences in the peak areas are less than 1% for both heating and
cooling. The good agreement between the two measurement results
demonstrates the excellent capability and reproducibility of the DSC
404 F3 Pegasus®.
Phosphate glass
A fine grained phosphate glass powder was measured between room
temperature and 1100°C. Typical for such glass types, the glass
transition was measured at 483°C (midpoint). At 632°C, an exothermal
effect was obtained. This effect is most probably caused by structural
changes in the material and/or agglomeration of the powder particles
above the softening point. The large surface of the powder is reduced
causing a slight energy release. The energy release superimposes the
true specific heat values between 600°C and 900°C.
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