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Dynamical In Situ Study of Morphological Changes of Bentonite in ESEM
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SYSNO ASEP 0481043 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Dynamical In Situ Study of Morphological Changes of Bentonite in ESEM Author(s) Navrátilová, Eva (UPT-D) RID
Neděla, Vilém (UPT-D) RID, ORCID, SAI
Sun, H. (CZ)
Mašín, D. (CZ)Number of authors 4 Source Title Microscopy and Microanalysis. - : Cambridge University Press - ISSN 1431-9276
Roč. 23, S1 (2017), s. 2196-2197Number of pages 2 s. Publication form Print - P Language eng - English Country US - United States Keywords ESEM ; morphological changes ; in situ study Subject RIV JA - Electronics ; Optoelectronics, Electrical Engineering OECD category Geology R&D Projects ED0017/01/01 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UPT-D - RVO:68081731 DOI 10.1017/S1431927617011643 Annotation The bentonite has a variety of industrial applications. It is used as a stabilizing and suspending agent, an adsorbent and clarifying agent, a buffer material for barriers in geological disposal facilities for radioactive waste, liners for remediation of contaminated soils and ponds. Characterization of the morphological changes of the bentonite during the process of swelling and shrinkage is very important for these applications. The environmental scanning electron microscope (ESEM) allows observation under the water vapour pressure from units to thousands of Pa and at a selected temperature from -20 degrees Celsius to 1500 degrees Celsius. Moreover, these samples do not have to be treated, namely dried and covered with the conductive metal layer. ESEM is also very effective for in-situ investigation of bentonites, which can be realised under dynamically changing relative humidity (RH). Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2018
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