Young's modulus of prefired quartz porcelain in a temperature range of 20-1200 °C
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F19%3A00542061" target="_blank" >RIV/61389021:_____/19:00542061 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21110/19:00332340
Result on the web
<a href="http://mit.imt.si/Revija/izvodi/mit194/trnik.pdf" target="_blank" >http://mit.imt.si/Revija/izvodi/mit194/trnik.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.17222/mit.2018.252" target="_blank" >10.17222/mit.2018.252</a>
Alternative languages
Result language
angličtina
Original language name
Young's modulus of prefired quartz porcelain in a temperature range of 20-1200 °C
Original language description
Green samples (50 w/% of kaolin, 25 w/% of quartz and 25 w/% of feldspar) are prefired up to 400-1200 °C and analyzed during their second firing. Thermogravimetry, thermodilatometry and dynamic thermomechanical analyses are performed in a range from room temperature to 1100 °C. In the samples prefired at temperatures of up to 400 °C and 500 °C, the release of physically bound water has a significant influence on Young's modulus, increasing its values by ≈25 % and 6.5 %, respectively, between room temperature and 200 °C. In the samples prefired at temperatures above 500 °C, the α → β transition of quartz governs Young's modulus in a temperature interval of 500-700 °C. Young's modulus increases by 29-40 % in the samples prefired at 600-1200 °C due to the closing of the cracks located around quartz grains. The presence of a glassy phase is not necessary for the steep increase of Young's modulus around the α → β transition of quartz. At high temperatures, an increase in Young's modulus is caused by solid-phase sintering (above 800 °C), formation of Al-Si spinel (≈950-980 °C) and crystallization of mullite (above 1050 °C).
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materiali in Tehnologije
ISSN
1580-2949
e-ISSN
1580-3414
Volume of the periodical
53
Issue of the periodical within the volume
4
Country of publishing house
SI - SLOVENIA
Number of pages
7
Pages from-to
535-541
UT code for WoS article
000476652700012
EID of the result in the Scopus database
2-s2.0-85069714405