SThM-based local thermomechanical analysis: Measurement intercomparison and uncertainty analysis

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F20%3AN0000042" target="_blank" >RIV/00177016:_____/20:N0000042 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26620/20:PU139886
Result on the web
<a href="https://www.sciencedirect.com/science/article/abs/pii/S1290072919315303" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S1290072919315303</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ijthermalsci.2020.106502" target="_blank" >10.1016/j.ijthermalsci.2020.106502</a>

Result language
angličtina
Original language name
SThM-based local thermomechanical analysis: Measurement intercomparison and uncertainty analysis
Original language description
We assess Scanning Thermal Microscopy (SThM) with a self-heated doped silicon nanoprobe as a method for determining the local phase transition temperature of polymeric materials by means of nano-thermomechanical analysis (nano-TA). Reference semi-crystalline samples and amorphous test samples, characterized first using differential scanning calorimetry (DSC), are studied by nano-TA in the temperature range 50-250 degrees C. The repeatability, the reproducibility and the reliability of nano-TA are evaluated by three laboratories by applying the same calibration protocol prior to and after the measurements. The calibration of the probe temperature scale and the variability of the sample thermomechanical response are validated by Monte Carlo uncertainty analysis, resulting in a calculated uncertainty between 3 and 5 K. The SThM probe temperature data represented as a function of DSC-measured phase-transition temperatures of the semi-crystalline samples rule out the possibility of a quadratic fit and call for a linear calibration in absence of additional information. The maximum deviation obtained between SThM and DSC temperatures with such linear calibration reaches +/- 30 K for melting temperatures and 50 K for glass transition temperatures.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
21100 - Other engineering and technologies

Project
<a href="/en/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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