Mechanical properties of zinc oxide thin films grown by spray-pyrolysis

Zinc oxide (ZnO) thin films are considered promising materials for optoelectronic applications, and characterization of their optical, electrical, and mechanical properties is essential for such purposes. In this study, thin films were deposited on glass substrates using spray-pyrolysis at 450°C, with film thicknesses ranging from 57 to 160 μm achieved by controlling the volume of the sprayed solution. ZnO thin films were characterized by XRD, where texture coefficient analysis was carried out to determine the preferential crystal growth, showing variations on (002), (100), (101) planes as the thickness of the film increases. The surface topography and grain size distribution of the films were analyzed using FE-SEM. The optical transmittance and optical bandgap of the thin films were studied by UV-Vis spectroscopy, with no significant change in the optical bandgap observed with varying thickness. Electrical properties were studied under the Van der Pauw method, obtaining conductivity values between 3.45 and 23.8 S. Finally, elastic modulus and film hardness were analyzed by instrumental indentation and calculated through the Hertz model, obtaining hardness and elastic modulus values between 4.5 – 6 GPa and 96.7 –111.5 GPa, respectively. The observed increase in hardness was attributed to the densification around the indentation zone.

Определение оптимальных конфигураций шевронов в поверхностно-стабилизированном смектике C*

Н.Г. Мигранов, А.А. Кудрейко, Д.Н. Мигранова

Точная эмпирическая формула определения плотности жаропрочных никелевых сплавов

Д.А. Тарасов, О.Б. Мильдер, А.Г. Тягунов

Экспериментальное исследование механических и трибологических свойств армированных многослойными углеродными нанотрубками с поверхностно-активным покрытием металломатричного композита алюминий 6065‑кремний

Дж. П. Савина , Б.В. Рагхавендра , Д. Рангаппа

Эффекты двуосного поверхностного потенциала в ячейках сегнетоэлектрических жидких кристаллов, стабилизированных полимерными сетками

В. Сонг, А.А. Кудрейко, Н.Г. Мигранов

Microstructure, mechanical and functional properties of the Ti49.0Ni51.0 alloy with preliminary multiple martensitic transformations

A.A. Churakova, E.I. Iskhakova, E.V. Vorobiev

Влияние температуры ковки на структуру, механические и функциональные свойства прутков из сверхупругого сплава Ti-Zr-Nb для биомедицинских применений

К.Е. Лукашевич, В.А. Шереметьев, А.А. Кудряшова, М.А. Деркач, В.А. Андреев, С.П. Галкин, С.Д. Прокошкин, В. Браиловский

The effect of oxygen-free MgF2 matrix on the physical properties of (CoFeZr)х(MgF2)100−х nanocomposites

O.V. Stognei, T.V. Tregubova, I.M. Tregubov

Влияние термической и термомеханической обработки на микроструктуру и механические свойства многокомпонентного сплава FeCrMnNiCo0.85C0.15

Е.В. Мельников, С.В. Астафуров, К.А. Реунова, В.А. Москвина, М.Ю. Панченко, И.А. Тумбусова, Е.Г. Астафурова

Наблюдение макронеоднородностей в поверхностно-стабилизированном смектике C* при неодинаково структурированных подложках

А.А. Кудрейко, В. Сонг, Д.Н. Мигранова

Effect of pressure welding temperature on the microstructure and mechanical properties of solid-state joints of wrought nickel-based EK79 and EP975 superalloys

R.R. Gabbasov, E.V. Galieva, E.Y. Klassman, V.A. Valitov

Impact fracture characteristics of multilayer laminate based on near-alpha titanium alloy

A.A. Sarkeeva

Influence of multi-directional isothermal forging on the microstructure and mechanical properties of low activation ferritic-martensitic steel for nuclear reactors

V.V. Osipova, N.A. Polekhina, I.Y. Litovchenko, K.V. Spiridonova, V.M. Chernov, M.V. Leontieva-Smirnova

Low-temperature superplastic deformation of EK61 and EP975 wrought nickel-based superalloys with an ultrafine-grained structure

E.V. Galieva, E.Y. Klassman, R.R. Gabbasov, E.M. Stepukhov, V.A. Valitov

Superplastic forming of EK61 nickel-based superalloy with ultrafine-grained structure

R.V. Safiullin, V.A. Valitov, R.Y. Lutfullin, E.V. Galieva, E.Y. Klassman

1. Consejo Nacional de Investigaciones Científicas y Técnicas - PIP 2487
2. Agencia Nacional de Promoción Científica y Tecnológica - PICT-STARTUP-2021-00026
3. Universidad Nacional de Mar del Plata - 15 / G577