2026-05-25T17:07:05Zhttps://www.radar-service.eu/oai/OAIHandler10.35097/12152023-11-15T14:45:34Zradar4kit
10.35097/1215
Breuer, Simon
Simon
Breuer
Schilling, Frank
Frank
Schilling
Quartz single crystal thermal diffusivity measurements by laser flash method: from -120 °C through the α-β phase transition to 800 °C
Karlsruhe Institute of Technology
2019
2023
Geography
Laser Flash Method
Thermal Diffusivity
Quartz
Phase Transition
Heat Transport
Open Access
Creative Commons Attribution Non Commercial Share Alike 4.0 International
Breuer, Simon
Schilling, Frank
Späthe, Jana
Stemmle, Ruben
Guth, Damien
Laser-Flash-Apparatus: Netzsch LFA 457, InSb and HgCdTe IR Detectors
Raw data on single crystal quartz thermal diffusivity are given as .csv data within the corresponding sample folders:
"LT" refers to low temperature (-120 °C to 400 °C), "HT" to high temperature (25 °C to 800 °C) measurements.
"_001" or "_100" of the folder and .csv file names denote the measured crystallographic direction, i.e. [100] (a-axis) and [001] (c-axis), respectively.
All .csv data contain a header with information on the measurement followed by the data in columns "Time /ms" and "Detector /V".
Thicknesses within the header information are given as room temperature (RT) thicknesses.
They are approx. 2 mm for "HT1" specimens, approx. 4 mm and 4.7 mm for "HT2" specimens and approx. 10 mm for "Qz_cube" specimens.
Information on the laser pulse used for the measurements can be found in the header information for the pulse power (e.g. "#Laser_voltage/V;1538,0") and filter settings that were used (e.g. "#Laser_filter/mm;100,0").
For finite pulse-time effect consideration[1], corresponding exemplary laser pulse profiles can be found in the folder "Laserpulse".
[1] e.g., see: Breuer, S. and Schilling, F. R.: Improving Thermal Diffusivity Measurements by Including Detector Inherent Delayed Response in Laser Flash Method, Int J Thermophys, 40, 95, https://doi.org/10.1007/s10765-019-2562-9, 2019)
10.5445/IR/1000119716
application/x-tar