Article
Chemistry, Physical
Hyun Min Kim, Jong Hoon Lee, Ahram Yom, Han Sol Lee, Dong Geun Kim, Dong Wan Ko, Hong Seung Kim, Ji-Hoon Ahn
Summary: SrRuO3 thin films have the potential for use as electrode layers, with key parameters such as oxygen flow ratio and post-deposition conditions needing to be carefully controlled for high-quality films to be deposited on SiO2 substrates.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Xiaomei Zeng, Vasiliy Pelenovich, Chang Xu, D. Neena, Yanghui Jiang, Xiangyu Zhang, Alexander Pogrebnjak, Rakhim Rakhimov, Jun Zhang, Bing Yang, Sheng Liu
Summary: The effects of sample position on the morphology of lithium niobium oxide thin film transducers were studied. At the center position, the thin film exhibited good ultrasonic response, while at farther positions, complex sunflower-like structures were formed, degrading the performance of the transducers. Additionally, the annealing temperature and time were observed to impact the morphology, crystal structure, element distribution, and ultrasonic response.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Giji Skaria, Ashwin Kumar Saikumar, Akshaya D. Shivprasad, Kalpathy B. Sundaram
Summary: Copper indium oxide thin films were deposited using RF magnetron sputtering and annealed at various temperatures, leading to increased grain size and crystallinity. The films exhibited high optical transmission and a small bandgap change during annealing.
Article
Chemistry, Physical
Konstantin A. Prosolov, Vladimir V. Lastovka, Margarita A. Khimich, Valentina V. Chebodaeva, Igor A. Khlusov, Yurii P. Sharkeev
Summary: This study investigates the deposition of antibacterial coatings on titanium alloy implant surfaces using RF magnetron sputtering. The research shows that the properties of the deposited coatings are influenced by the elemental composition and structure of the RF magnetron targets, as well as the substrate temperature during deposition and post-deposition heat treatment. Sintering the targets results in structural changes, while the use of nanostructured titanium improves the scratch resistance of the coatings.
Article
Materials Science, Ceramics
Pakinee Thongrit, Chanunthorn Chananonnawathorn, Mati Horprathum, Narit Triamnak, Tossaporn Lertvanithphol, Sukum Eitssayeam, Kamonpan Pengpat, Patamas Bintachitt
Summary: In this research, high-quality PZT thin films were deposited on (111)Pt/Ti/SiO2/(100)Si substrates by RF magnetron sputtering. Annealing at different temperatures improved the microstructure and properties of the thin films. The results showed that annealing temperature influenced the film thickness, density, and crystallinity of PZT films.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Soheil Mobtakeri, Yunus Akaltun, Ali Ozer, Merhan Kilic, Ebru Senadim Tuzemen, Emre Gur
Summary: The study investigated the effects of deposition pressure and growth power on the properties of Ga2O3 thin films deposited on sapphire and n-Si substrates. SEM images revealed a transition from 2D growth mode to 3D columnar growth mode with increasing deposition pressure. Annealing resulted in larger grain formation and similar transmittance values for thin films grown at different pressures. Additionally, a red shift in absorption edges and a decrease in band gap values were observed with increasing growth pressure.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Coatings & Films
Roman A. Surmenev, Anna A. Ivanova, Matthias Epple, Vladimir F. Pichugin, Maria A. Surmeneva
Summary: The study investigated the influence of RF magnetron sputter deposition conditions on nanocomposite CaP coatings and developed a phenomenological model to explain the formation of RF magnetron sputter-deposited HA coatings. The results showed that as film thickness and temperature gradient increased, the crystallization of HA phase occurred leading to the formation of fiber texture in the films, indicating the importance of deposition conditions on coating properties.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Optics
M. Mohamedi, F. Challali, T. Touam, D. Mendil, S. Ouhenia, A. H. Souici, D. Djouadi, A. Chelouche
Summary: In this study, AZO thin films were fabricated on glass and quartz substrates using RF magnetron sputtering technique in confocal configuration. The effects of substrate and air annealing on the properties of the films were investigated. The results showed that the properties of the films, including crystallinity, surface roughness, optical transmittance, and electrical conductivity, were influenced by substrate type and annealing temperature.
JOURNAL OF LUMINESCENCE
(2022)
Article
Physics, Multidisciplinary
K. A. Prosolov, O. A. Belyavskaya, V. V. Lastovka, M. V. Chaikina, Yu. P. Sharkeev
Summary: The study confirms the possibility of titanium surface functionalization through oblique sputtering of nanostructured bioactive calcium phosphate coatings. It investigates the impact of process parameters on coating morphology and growth characteristics.
RUSSIAN PHYSICS JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Yuki Hirata, Kanta Yoshii, Mikito Yoshizato, Hiroki Akasaka, Naoto Ohtake
Summary: This article presents a new method for synthesizing h-BN on a Cu substrate using magnetron sputtering and heat annealing. The structure and thickness of h-BN films can be controlled by adjusting the radio-frequency power, temperature, and synthesis time.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Wei Mi, Xinwei Li, Yue Ding, Di Wang, Mingsheng Xu, Longfei Xiao, Xingcheng Zhang, Xinrong Chen, Bingkun Li, Liyuan Luo, Jinshi Zhao, Liwei Zhou, Junli Yu
Summary: Ga2O3 films were grown on Si (100) substrates via RF magnetron sputtering at room temperature. The large lattice mismatch led to poor crystalline quality and cracking. To solve this issue, a method combining pre-deposited seed layer and post-annealing process was proposed. The prepared film showed high crystalline quality and thickness of 160 nm when the seed layer was 9 nm and annealing temperature was 800 °C. The seed layer provided nucleation sites and alleviated lattice mismatch, while annealing promoted recrystallization and improved Ga2O3 quality. This work promotes the development of Ga2O3-based devices on Si substrates and solves the heat dissipation problem.
Article
Energy & Fuels
Vasiliy Pelenovich, Huidong Liu, Xiaomei Zeng, Yan Liu, Kang Liu, Bing Yang
Summary: A new approach to deposit graded solar selective absorbers using non-equilibrium reactive RF magnetron sputtering has been proposed, demonstrating promising results. The method involves a relaxation process of target poisoning in a reactive O2/Ar atmosphere to achieve gradient composition, with the potential to adjust thickness and element distribution profile. This method offers simplicity and high production yield compared to existing methods.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Polymer Science
Maria Elena Zarif, Sasa Alexandra Yehia-Alexe, Bogdan Bita, Irina Negut, Claudiu Locovei, Andreea Groza
Summary: In this study, calcium phosphate-chitosan composite layers were synthesized, and the effect of substrate temperature on the incorporation of chitosan was investigated. The degree of chitosan incorporation significantly influenced the properties and adherence strength of the composite layers. The adherence strength was diminished after chitosan deposition.
Article
Chemistry, Physical
Kavita Sahu, Aditi Bisht, Alapan Dutta, Tapobrata Som, Satyabrata Mohapatra
Summary: Plasmonic nanocomposite thin films of Au-Cu2O-CuO were fabricated by RF magnetron co-sputtering and thoroughly analyzed by various techniques. The nanocomposite thin film showed excellent photocatalytic performance for organic pollutants degradation and significant catalytic activity for 4-NP transformation. The presence of Au nanoparticles in the Cu2O-CuO thin film improved charge separation and transport, enhancing the catalytic and photocatalytic features of the nanocomposite.
SURFACES AND INTERFACES
(2021)
Article
Materials Science, Ceramics
Yessie W. Sari, Annisa Tsalsabila, Noviyan Darmawan, Yuliati Herbani
Summary: This study investigated the effects of surface-modified gold nanoparticles with different amino acids on the formation of hydroxyapatite. The results showed that aspartic acid modification of the gold nanoparticles promoted the crystallization of hydroxyapatite with a smaller crystallite size and a higher Ca/P ratio, which is beneficial for bone substitute applications.
CERAMICS INTERNATIONAL
(2022)
Article
Physics, Multidisciplinary
K. A. Prosolov, M. A. Khimich, Y. P. Sharkeev
Summary: The interaction between implanted materials and body tissues at the cellular level is crucial for the success of biomedical implants. Surface modifications are commonly used to improve implant performance, but they can alter the material's surface properties and affect cellular responses. In this study, the impact of different surface treatments on titanium alloy samples comparable to commercial implants was examined. Residual stress was found to vary with different treatments. Considering residual stress as a criterion for implant biocompatibility is important, and investigating its relationship with cellular responses can contribute to the development of better implant materials and surface treatments.
RUSSIAN PHYSICS JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Maria Surmeneva, Konstantin Prosolov, Ivan Glukhov, Irina Grubova, Vladimir Botvin, Roman Surmenev, Yurii Sharkeev
Summary: Coatings of pure crystalline hydroxyapatite (HA) or silicon-containing HA (Si-HA) were deposited on a ZrNb alloy surface by radio-frequency magnetron sputtering. The coated samples were heated in a vacuum furnace, and the effect of Si addition to HA on the crystallization behavior and structure of the films was analyzed. The Si substitution played a major role in the mechanisms of coating formation and crystallization behavior, influencing the structure and crystallinity of the deposited layers. The surface-induced crystallization of the thin films was found to be more pronounced than internal crystallization.
Article
Chemistry, Physical
Vasily Klimenov, Evgeny Kolubaev, Klopotov Anatoly, Andrey Chumaevskii, Artem Ustinov, Irina Strelkova, Valery Rubtsov, Denis Gurianov, Zeli Han, Sergey Nikonov, Andrey Batranin, Margarita Khimich
Summary: Based on the multilevel approach, the study investigated the structure and properties of titanium alloy in the high-performance additive manufacturing process using wire-feed electron beam technology. Non-destructive X-ray control, tomography, optical and scanning electron microscopy techniques were employed to analyze the structure at different scales. The mechanical properties under stress were determined through observation of deformation development using a Vic 3D laser scanning unit. The interrelations between structure and material properties, caused by the printing process and welding wire composition, were revealed through microstructural and macrostructural data analysis, as well as fractography.
Article
Materials Science, Multidisciplinary
Elena Legostaeva, Anna Eroshenko, Vladimir A. Vavilov, Vladimir Skripnyak, Nikita Luginin, Arsenii Chulkov, Alexander V. Kozulin, Juergen Schmidt, Alexey Tolmachev, Pavel Uvarkin, Yurii Sharkeev
Summary: The microstructural investigation, mechanical properties, and energy accumulation and dissipation of the magnesium alloy Mg-2.9Y-1.3Nd were studied in the recrystallized state and after severe plastic deformation (SPD) by extrusion. The use of SPD resulted in the formation of a bimodal structure, increased yield strength, tensile strength, and plasticity, and caused substructural hardening, phase composition redistribution, and texture formation. SPD also led to a redistribution of thermal energy and reduced the strain hardening coefficient.
Article
Materials Science, Multidisciplinary
Valentina Vadimovna Chebodaeva, Nikita Andreevich Luginin, Anastasiya Evgenievna Rezvanova, Natalya Valentinovna Svarovskaya, Konstantin Vladimirovich Suliz, Ludmila Yurevna Ivanova, Margarita Andreevna Khimich, Nikita Evgenievich Toropkov, Ivan Aleksandrovich Glukhov, Andrey Aleksandrovich Miller, Sergey Olegovich Kazantsev, Maksim Germanovich Krinitcyn
Summary: This paper presents a study on the microstructure, phase composition, and mechanical characteristics of Fe-Cu-HA metal-ceramic composites, with a focus on microhardness. The findings show that varying the proportion of Fe-Cu-HA powder does not significantly affect the elemental and phase compositions of the material. X-ray phase analysis reveals the presence of three phases: alpha iron, copper, and hydroxyapatite. It is observed that an increase in the polymer component leads to an increase in structural defects and microstresses. Furthermore, increasing the mechanical properties of the composite is achieved by reducing the Fe-Cu-HA powder content from 50% to 40%. Interestingly, the composite containing 45% Fe-Cu-HA powder exhibits the highest microhardness increase of approximately 26% compared to the composite with 50% Fe-Cu-HA powder, attributed to a more uniform component distribution.
Article
Engineering, Biomedical
Mariya B. Sedelnikova, Alexander D. Kashin, Pavel V. Uvarkin, Alexey I. Tolmachev, Yurii P. Sharkeev, Anna V. Ugodchikova, Nikita A. Luginin, Olga V. Bakina
Summary: In this study, porous diatomite biocoatings were created on the surface of a biodegradable Mg alloy using the method of micro-arc oxidation. The addition of ZrO2 microparticles was found to affect the structure and properties of the coatings. The coatings exhibited a porous structure and increased adhesive strength and corrosion resistance with the incorporation of ZrO2 particles.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Nikita Luginin, Anna Eroshenko, Margarita Khimich, Konstantin Prosolov, Alexander Kashin, Pavel Uvarkin, Alexey Tolmachev, Ivan Glukhov, Alexander Panfilov, Yurii Sharkeev
Summary: In this study, we have developed a novel magnesium-based alloy with low cerium content and refined microstructure, which exhibits improved mechanical properties and corrosion resistance. This alloy shows potential for medical applications, addressing the limitations of traditional magnesium-based alloys.
Article
Materials Science, Multidisciplinary
Konstantin A. Prosolov, Nikita A. Luginin, Larisa S. Litvinova, Maxim A. Fedorov, Ilya I. Anisenya, Lyudmila S. Mushtovatova, Aleksandr A. Snetkov, Artem V. Bukharov, Igor A. Khlusov, Yurii P. Sharkeev
Summary: This study proposes the deposition of calcium phosphate (CaP) onto Mg (0.8) Ca alloy using an RF magnetron sputtering with stoichiometric hydroxyapatite and Zn- or Cu-substituted hydroxyapatites. The addition of Zn-substituted hydroxyapatites enhanced hAMSCs survival and the bacteriostatic effect on the pathogenic SA strain. These findings suggest that the deposition of CaP coatings, particularly using Zn-substituted hydroxyapatites, could enhance the suitability of magnesium-based alloys for medical implant applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Konstantin Prosolov, Vladimir Lastovka, Margarita Khimich, Ivan Glukhov, Alexander Kashin, Nikita Luginin, Yurii Sharkeev
Summary: This research investigates the incorporation of copper (Cu) into hydroxyapatite (CaP) materials and its impact on structural, mechanical, and electrochemical properties. The study observes significant changes in lattice parameters, elemental composition, and Ca/P ratio with the addition of CuO. The research also demonstrates improved hardness and corrosion resistance in the CaP coatings, suggesting potential advancements in biomedical applications.
Article
Engineering, Multidisciplinary
Alexander D. Kashin, Mariya B. Sedelnikova, Pavel V. Uvarkin, Anna V. Ugodchikova, Nikita A. Luginin, Yurii P. Sharkeev, Margarita A. Khimich, Olga V. Bakina
Summary: The micro-arc oxidation method was used to synthesize a biocompatible coating for a bioresorbable orthopedic Mg implant. The study focused on functionalizing the diatomite-based micro-arc coatings by incorporating TiO2 particles. Various properties of the coatings were examined and evaluated. The results showed the formation of a new magnesium orthosilicate phase, reduced corrosion current density, increased adhesion strength, and reduced cytotoxicity.
Article
Materials Science, Multidisciplinary
Valentina Chebodaeva, Mariya Sedelnikova, Margarita Khimich, Olga Bakina, Alexey Tolmachev, Andrey Miller, Kirill Golohvast, Aleksander Zakharenko, Vladimir Egorkin, Igor Vyaliy, Yurii Sharkeev
Summary: Porous calcium phosphate coatings with ZnO nanoparticles were prepared using the micro-arc oxidation method on a titanium substrate. The coatings showed improved physical, electrochemical, and electrical properties after modification with ZnO nanoparticles. Additionally, the antibacterial activity of the coatings increased by 99% after the addition of ZnO nanoparticles.
