Size effect on sensitivity to external pressure and caloric effects in TGS: Ceramics and nanocomposites : научное издание

Описание

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.

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Издание

Журнал: MATERIALS TODAY COMMUNICATIONS

Выпуск журнала: Vol. 25

Номера страниц: 101463

ISSN журнала: 23524928

Место издания: AMSTERDAM

Издатель: ELSEVIER

Персоны

  • Mikhaleva E.A. (Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Krasnoyarsk 660036, Russia)
  • Flerov I.N. (Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia)
  • Bogdanov E.V. (Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Krasnoyarsk 660036, Russia; Krasnoyarsk State Agr Univ, Inst Engn Syst & Energy, Krasnoyarsk 660049, Russia)
  • Bondarev V.S. (Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia)
  • Gorev M.V. (Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia)
  • Rysiakiewicz-Pasek E. (Wroclaw Univ Sci & Technol, Dept Expt Phys, PL-50370 Wroclaw, Poland)