Original title: Vliv Fe substitucí na transformační teploty ve slitinách Ni2MnGa
Translated title: Influence of Fe substitutions on tranformation temperatures in Ni2MnGa alloys
Authors: Drastichová, Kristýna ; Klicpera, Milan (advisor) ; Prchal, Jiří (referee)
Document type: Bachelor's theses
Year: 2020
Language: cze
Abstract: In this bachelor thesis we are interested in studying the properties of Ni2MnGa alloy and their development with the other element substitution, for example with iron. Overally, we were studying five samples with four different compositions described by the formula Ni50Mn 25Ga25-xFex where the concentration of iron was in the interval . Consequently we performed on the prepared single crystals an extensive characterization by the methods of x-ray and electron diffraction, differential scanning calorimetry and dilatometry. Special emphasis was devoted to measuring the magnetization with vibrational magnetometer. The obtained data enabled us to confirm the quality of the prepared single crystals and to observe a development of Ni2MnGa properties, especially the temperatures of the phase transformations.
Keywords: Heusler alloys; magnetic shape memory; martensitic transformation; Heuslerovy slitiny; magnetická tvarová paměť; martenzitická transformace

Institution: Charles University Faculties (theses) (web)
Document availability information: Available in the Charles University Digital Repository.
Original record: http://hdl.handle.net/20.500.11956/120420

Permalink: http://www.nusl.cz/ntk/nusl-434448


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Universities and colleges > Public universities > Charles University > Charles University Faculties (theses)
Academic theses (ETDs) > Bachelor's theses