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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/00216305:26620/20:PU139886

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21100 - Other engineering and technologies

Projekt

<a href="/cs/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

International Journal of Thermal Sciences

ISSN

1290-0729

e-ISSN

1778-4166

Svazek periodika

156

Číslo periodika v rámci svazku

October 2020

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

9

Strana od-do

—

Kód UT WoS článku

000621410600020

EID výsledku v databázi Scopus

2-s2.0-85085270541