Young's Modulus of Prefired Quartz Porcelain in a Temperature Range of 20-1200 °C

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00332340" target="_blank" >RIV/68407700:21110/19:00332340 - isvavai.cz</a>

Alternative codes found

RIV/61389021:_____/19:00542061

Result on the web

<a href="https://doi.org/10.17222/mit.2018.252" target="_blank" >https://doi.org/10.17222/mit.2018.252</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17222/mit.2018.252" target="_blank" >10.17222/mit.2018.252</a>

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 approximate to 25 % and 6.5 %, respectively, between room temperature and 200 °C. In the samples prefired at temperatures above 500 °C. the alpha -> beta 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 alpha -> beta transition of quartz. At high temperatures, an increase in Young's modulus is caused by solid-phase sintering (above 800 degrees C), formation of Al-Si spinel (approximate to 950-980 °C) and crystallization of mullite (above 1050 °C).

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20504 - Ceramics

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

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

Name of the periodical

Materials and Technology

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