VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Influence of neutron and gamma irradiation on the electrocaloric properties of Mn-doped ▫$0.9Pb(Mg_{1/3}Nb_{2/3})O_3–0.1PbTiO_3$▫ ceramics
    Sarkar, Ankita ...
    The influence of neutron and gamma irradiation on the low- and high-field dielectric and electrocaloric (EC) properties of Mn-doped 0.9Pb(Mg1/3Nb2/3)O3–0.1PbTiO3 (PMN–10PT) ceramic is studied. Upon ... exposure to neutron fluences of up to 1017 cm−2 and gamma-ray doses of up to 1200 kGy the Mn-doped PMN–10PT exhibits a lower saturated polarization, increased internal bias field and reduced EC temperature change. In comparison, the respective properties of the undoped PMN–10PT remain almost unchanged upon exposure to neutrons and gamma rays. In Mn-doped PMN–10PT, the acceptor-oxygen vacancy defect complexes, introduced via doping, contribute to the lowering of the threshold radiation dose that the material survives without noticeable changes in properties. Radiation-induced degradation of the EC response of Mn-doped PMN–10PT can be partially healed by annealing at 450 °C. The study provides guidance for designing EC ceramic materials for solid-state cooling applications in environments of high ionizing radiation, such as the medical field or space technologies.
    Vir: JPhys energy [Elektronski vir]. - ISSN 2515-7655 (Vol. 5, no. 4, [article no.] 045006, Oct. 2023, str. 1-12)
    Vrsta gradiva - e-članek ; neleposlovje za odrasle
    Leto - 2023
    Jezik - angleški
    COBISS.SI-ID - 164507907

    Povezava(-e):

    https://iopscience.iop.org/article/10.1088/2515-7655/acf61b
    DOI

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