Temperature dependence of Young's modulus of silica refractories

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F15%3A43898242" target="_blank" >RIV/60461373:22310/15:43898242 - isvavai.cz</a>

Alternative codes found

RIV/67985891:_____/15:00472845

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Temperature dependence of Young's modulus of silica refractories

Original language description

The temperature dependence of Young's modulus of silica refractories exhibiting pore volume fractions in the range 18.6-20.9% is investigated via impulse excitation up to 800-1000 1C and four-point bending up to 500 1C. This temperature dependence exhibits a broad valley approximately below 200 1C, where Young's modulus values decrease to 55-62% of their room temperature magnitude. Upon further heating, Young's modulus increases steeply within a few degrees around 230 1C, followed by an S-shaped increase to maximum values corresponding to 174-282% of the room temperature values. Cooling branches are different from heating branches and do not form closed loops, indicating damage accumulation. Dilatation measurements, polarization microscopy, micromechanical calculations and X-ray phase analysis are used to underpin the conclusion that the observed elastic effects are not caused by phase transitions alone, but are combined effects of phase transitions and microcrack opening and partial c

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JH - Ceramics, fire-proof materials and glass

OECD FORD branch

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Project

<a href="/en/project/GAP108%2F12%2F1170" target="_blank" >GAP108/12/1170: Porous Ceramics with Tailored Elasticity and Thermal Conductivity</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

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

Name of the periodical

Ceramics International

ISSN

0272-8842

e-ISSN

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Volume of the periodical

41

Issue of the periodical within the volume

1

Country of publishing house

BE - BELGIUM

Number of pages

10

Pages from-to

1129-1138

UT code for WoS article

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EID of the result in the Scopus database

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