Počet záznamů: 1
Nanocharacterization of the negative stiffness of ferroelectric materials
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SYSNO ASEP 0436159 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Nanocharacterization of the negative stiffness of ferroelectric materials Tvůrce(i) Skandani, A.A. (US)
Čtvrtlík, Radim (FZU-D) RID, ORCID
Al-Haik, M. (US)Zdroj.dok. Applied Physics Letters. - : AIP Publishing - ISSN 0003-6951
Roč. 105, č. 8 (2014), "082906-1"-"082906-5"Poč.str. 5 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova ferroelectric materials ; negative stiffness ; thermomechanical environments Vědní obor RIV JJ - Ostatní materiály CEP TA03010743 GA TA ČR - Technologická agentura ČR Institucionální podpora FZU-D - RVO:68378271 UT WOS 000342753500057 EID SCOPUS 84907345990 DOI 10.1063/1.4894274 Anotace Phase changing materials such as ferroelectric materials could exhibit negative stiffness under certain thermomechanical environments. This negative stiffness is embodied by a deflection along the opposite direction of the applied load. So far negative stiffness materials were investigated with the specific morphology of embedded inclusions in stiff matrices then the resulting composite is studied to measure the behavior of each constituent indirectly. In this study, a modified nonisothermal nanoindentation method is developed to measure the negative stiffness of triglycine sulfate single crystal directly. This in-situ method is intended to first demonstrate the feasibility of detecting the negative stiffness via nanoindentation and nanocreep of a ferroelectric material at its Curie point and then to quantify the negative stiffness without the need for embedding the crystal within a stiffer matrix. Pracoviště Fyzikální ústav Kontakt Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Rok sběru 2015
Počet záznamů: 1