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Screen shot of High Temperature module (client sensitive areas blacked out here)
Buzz-o-sonic High Temperature Systems are custom designed around customer requirements
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A special High Temperature module is used to monitor and log the data during a run. A log file is automatically created in case a run is aborted unexpectedly (power cut, burned out element etc.). The sample can be tested automatically at given time intervals or when the temperature is constant for a given time and tolerance.
Our high temperature systems are so versatile that green or unfired ceramic samples can be tested as shown on the left.
In this case a green sample1 was heated in air to a temperature of 1100 ⁰C at a heating rate of 300 ⁰C.h-1. As the sample lost weight due to binder burn out, the resonant frequency increased accordingly. The frequency then increased more dramatically as the sample began to sinter.
More typically, the Young's modulus is calculated and plotted as a function of temperature as shown below2.
The variation of Young’s modulus with temperature in (a, b) as-received and (c, d) 8-h reduced NiO-8YSZ samples of 600 and 900 µm thicknesses, respectively.
1 the sample was provided by Univerzita Konštantína Filozofa v Nitre
2 S. Biswas, T. Nithyanantham, N. T. Saraswathi, and S. Bandopadhyay "Evaluation of elastic properties of reduced NiO-8YSZ anode supported bi-layer SOFC structures at elevated temperatures in ambient air and reducing environments," J Mater Sci 44 778-–785 (2009)
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