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Miniaturized ceramic differential scanning calorimeter with integrated oven and crucible in LTCC technology

: Missal, W.; Kita, J.; Wappler, E.; Gora, F.; Kipka, A.; Bartnitzek, T.; Bechtold, F.; Schabbel, D.; Pawlowski, B.; Moos, R.


Sensors and Actuators. A 172 (2011), No.1, pp.21-26
ISSN: 0924-4247
Eurosensors <24, 2010, Linz>
Journal Article, Conference Paper
Fraunhofer IKTS ()
DSC; enthalpy; enthalpy of fusion; LTCC; melting point

A miniaturized ceramic differential scanning calorimeter (MC-DSC) with integrated oven and crucible is presented. Despite its small size of only 11 mm × 39 mm × 1.5 mm, all functions of a conventional DSC apparatus are integrated in this novel device - including the oven. The MC-DSC is fully manufactured in thick-film and green glass ceramic tape-based low temperature co-fired ceramics (LTCC) technology.
Therefore, production costs are considered to be low. Initial results using indium as a sample material show a good dynamic performance of the MC-DSC. Full width at half maximum of the melting peak is 2.4 °C (sample mass approx. 11 mg, heating rate approx. 50 °C/min). Repeatability of the indium melting point is within ±0.02 °C. The melting peak area increases linearly with the sample mass up to at least 26 mg.
Simulations of a strongly simplified finite element model of the MC-DSC are in a good agreement with measurement results allowing a model-based prediction of its basic characteristics.