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== Thermoanalytical properties ==
[[Stoichiometry|Stoichiometric]] films of selenium-based alloys such as those of Bi-Se and Bi-Te composites are of technical importance for applications in [[memory switch devices]]. Thermoanalytical studies often give information about their stoichiometry, melting/boiling points and kinetic reactions responsible for their decomposition and crystallization. Thermoanalytical study on Bi-Se composites using [[Thermogravimetric analysis|thermogravimetry]] (TG) and differential thermogravimetry (DTG) experiments with a single heating rate and analyzing the measured non-isothermal TG and DTG curves via model-based [[Fictitious force|kinetic reaction]] formulas of original Coats-Redfern (CR) and Achar-Brindley-Sharp (ABS) equations yields promising results on the nature of kinetic reaction models operational in such systems.<ref>{{Cite journal|last=Ahmad|first=Mais Jamil A.|last2=Jafar|first2=Mousa M. Abdul-Gader|last3=Saleh|first3=Mahmoud H.|last4=Shehadeh|first4=Khawla M.|last5=Telfah|first5=Ahmad|last6=Ziq|first6=Khalil A.|date=2017-09-30|title=Evaluation of Kinetic Parameters and Thermal Stability of Melt-Quenched Bi<sub>x</sub>Se<sub>100−x</sub> Alloys (x ≤7.5 at%) by Non-Isothermal Thermogravimetric Analysis|url=http://www.appmicro.org/journal/view.html?uid=223&&vmd=Full|journal=Applied Microscopy|language=en|volume=47|issue=3|doi=10.9729/AM.2017.47.3.110|issn=2287-5123}}</ref> , though it is always preferable to analyze such TG and DTG data on the basis of model-free kinetic reaction formulations and several heating rates, in addition to performing differential scanning calorimetric (DSC) and differential temperature analysis (DTA) which usually give more information on crystallinity contents as well as important thermal properties.<ref>{{Cite book|url=http://www.springer.com/br/book/9781402002113|title=Introduction to Thermal Analysis - Techniques and {{!}} Michael Ewart Brown {{!}} Springer|language=en}}</ref>
== Electric and dielectric properties ==
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