Thermostability of montmorillonitic clays

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F14%3A86090057" target="_blank" >RIV/61989100:27360/14:86090057 - isvavai.cz</a>
Result on the web
<a href="http://www.foundryworld.com/uploadfile/2014082755083137.pdf" target="_blank" >http://www.foundryworld.com/uploadfile/2014082755083137.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Thermostability of montmorillonitic clays
Original language description
Bentonite is one of the most widespread used clays connected with various applications. In the case of foundry technology, bentonite is primarily used as a binder for mold manufacture. Thermal stability of bentonites is a natural property of clay minerals and it depends on the genesis, source and chemical composition of the clay. This property is also closely connected to bentonite structure. According to DTA analysis if only one peak of dehydroxylation is observed (about 600 degrees C), the cis-isomerism of bentonite is expected, while two peaks of de-hydroxylation (about 550 and 850 degrees C) are expected in the trans-one. In this overview, the bentonite structure, the water - bentonite interaction and the swelling behavior of bentonite in connection with the general technological properties of bentonite molding mixture are summarized. Further, various types of methods for determination of bentonite thermostability are discussed, including instrumental analytical methods as well as
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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