Thermal shock resistance of magnesia-chrome refractories – experimental and criterial evaluation.
PBN-AR
Instytucja
Sieć Badawcza Łukasiewicz - Instytut Ceramiki i Materiałów Budowlanych
Informacje podstawowe
Główny język publikacji
en
Czasopismo
CERAMICS INTERNATIONAL
ISSN
0272-8842
EISSN
Wydawca
ELSEVIER SCI LTD
DOI
URL
Rok publikacji
2013
Numer zeszytu
1
Strony od-do
1-12
Numer tomu
39
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Autorzy
Słowa kluczowe
en
Thermal shock resistance; Spinels; Refractories; Magnesite-chrome materials
Streszczenia
Język
en
Treść
Eleven commercially available magnesia-chrome refractories have been tested. Their basic properties have been determined along with bending strengths at 20,950 and 1400 degrees C, linear thermal expansion coefficients at 950 degrees C and 1400 degrees C, Young's modulus by the static method and the work of fracture at 950 degrees C. Young's modulus was determined within the temperature range 20-1000 degrees C, in the process of heating and cooling. The values of thermal shock resistance R-st and R-4 were calculated and correlated to thermal shock resistance (TSR). It has been demonstrated that the R-st criterion is a useful tool to forecast TSR, no matter whether the value of the E modulus is determined by the static or dynamic method. The values of Young's modulus obtained by various methods at 20 degrees C and 950 degrees C have been compared. It has been proven that Young's modulus dependence on temperature is a specific feature of a given material. (C) 2012 Published by Elsevier Ltd and Techna Group S.r.l.
Cechy publikacji
ORIGINAL_ARTICLE
Inne
System-identifier
576758
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