Тип публикации: статья из журнала
Год издания: 2020
Идентификатор DOI: 10.1016/j.mtcomm.2020.101463
Ключевые слова: ferroelectric nanocomposite, phase transition, high pressure, caloric effects
Аннотация: Experimental study of temperature-pressure phase diagrams revealed a slight difference in the sensitivity to hydrostatic pressure of triglycine sulfate (TGS) as a bulk (single crystal, ceramics), and nanoparticles embedded in porous glass (TGS + PG). An analysis of the pressure sensitivity, dT(0)/p and dT(0)/d sigma, and entropies Показать полностьюof the P2(1) P2(1)/m phase transition showed the closeness of the barocaloric parameters in various materials under study. Due to the strong anisotropy of thermal expansion, the piezocaloric effect under pressure along the axis c exceeds the barocaloric effect in single-crystal TGS. The reasons for the strong reduction in the electrocaloric effect in the ferroelectric component of nanocomposites compared with a single-crystal are discussed.
Журнал: MATERIALS TODAY COMMUNICATIONS
Выпуск журнала: Vol. 25
Номера страниц: 101463
ISSN журнала: 23524928
Место издания: AMSTERDAM
Издатель: ELSEVIER