Наукова електронна бібліотека
періодичних видань НАН України
періодичних видань НАН України
Thermal conductivity of argon–SiO₂ cryocrystal nanocomposite
Репозиторій DSpace/Manakin
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Thermal conductivity of argon–SiO₂ cryocrystal nanocomposite
Тема:
Наноструктуры при низких температурах
Інший ID:
PACS: 65.60 +a, 66.70.–f, 63.20.–e
Посилання:
Thermal conductivity of argon–SiO₂ cryocrystal nanocomposite / R.V. Nikonkov, P. Stachowiak, A. Jeżowski, and A.I. Krivchikov // Физика низких температур. — 2016. — Т. 42, № 4. — С. 403–406 . — Бібліогр.: 31 назв. — англ.
Підтримка:
The authors want to thank Dr. Robert Pązik for providing
SiO₂ nanopowders.
This work was supported by the National Science Centre
(Poland) grant nr. UMO-2013/08/M/ST3/00934.
Дата:
2016
Переглядів:
645
Завантажень:
539
Анотація:
The effective thermal conductivity of samples of cryocrystal nanocomposite obtained from argon and SiO2
nanopowder was determined in the temperature interval 2–35 K using the steady-state method. The thermal conductivity
of crystalline argon with nanoparticles of amorphous silica oxide embedded in its structure shows a weak dependence
on particle linear dimension in the interval 5–42 nm. The temperature dependence of the thermal conductivity
of the nanocomposites can be well approximated by taking into account only the two mechanisms of heat
carrier scattering: phonon-phonon interaction in U-processes and scattering of phonons by dislocations.
