Article
Materials Science, Ceramics
Huan Liu, Haibo Wu, Huihui Zhang, Ming Yuan, Jian Chen, Zhongming Chen, Xuejian Liu, Zhengren Huang
Summary: Highly densified SiC ceramics were fabricated by synthesizing single-phase Al4SiC4 powder with low neutron absorption cross section and mixing it with SiC powder, followed by hot pressing. The densification of the ceramics was greatly enhanced by the decomposition of Al4SiC4 and the formation of aluminosilicate liquid phase during sintering. The resulting SiC ceramics exhibited fine equiaxed grains and excellent mechanical properties.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Shuang Zhao, Jun Chen, Feiyue Yang, Guobing Chen, Lei Zhang, Zichun Yang
Summary: Continuous silicon carbide fiber reinforced silicon carbide matrix composites (SiC/SiC) are promising candidate materials for nuclear applications. SiC ceramics and SiC/SiC composite were prepared using a polymer deriving method and irradiated with a 1.8 MeV electron beam. The microstructural evolution and radioluminescence performance were investigated, and the results showed evident amorphization and low radioluminescence intensity in both SiC ceramics and SiC/SiC composite due to the self-absorption of free carbon in the polymer derived SiC ceramics.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Asif Ur Rehman, Abid Ullah, Tingting Liu, Rashid Ur Rehman, Metin U. Salamci
Summary: In this study, a new slurry-based approach for laser powder bed fusion (LPBF) of ceramics was investigated, which showed significant advantages compared to indirect selective laser sintering (SLS) of ceramic powders. The addition of magnesia had a substantial influence on the microstructure of alumina ceramic, and high laser power with low magnesia load improved the surface quality of the printed parts. Slurry ceramic parts without binders were successfully produced through LPBF. Additionally, the effects of SiC and magnesia loads on the microstructure and surface morphology of alumina were compared and analyzed.
FRONTIERS IN CHEMISTRY
(2023)
Article
Chemistry, Analytical
Jian Zhang, Zhichao Liu, Yuanhang Zhang, Feng Geng, Shengfei Wang, Fei Fan, Qinghua Zhang, Qiao Xu
Summary: In this study, the effects of different parameters on the material removal rate, surface quality, and surface oxidation during the laser processing of SiC ceramics were investigated. Results show that surface oxidation can be reduced by adjusting laser scanning speed and pitch, with laser fluence being the main factor affecting material removal rate and surface quality. Optimal material removal rate is achieved with a laser fluence of 0.4 J/cm2 and a pulse width of 470 fs.
Article
Materials Science, Multidisciplinary
Xiaodong Hu, Rongjie Jiang, Fang Luo, Yuanhang Lu, Yuxin Wang, Zhen He
Summary: In this study, SiC nanocoatings were successfully prepared on graphite substrates using a laser treatment process, exhibiting excellent high-temperature oxidation resistance. The dense and crack-free surface morphology of the SiC nanocoating, along with the self-healing ability due to the formation of SiO2, contributes to enhanced protection of the underlying graphite substrate. The laser-prepared SiC nanocoating serves as an efficient and effective method for manufacturing SiC protective coatings with improved high-temperature oxidation resistance.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Materials Science, Multidisciplinary
Takaaki Koyanagi
Summary: This paper reviews the chemical disordering in SiC-based materials under irradiation environments and highlights its significance in understanding microstructural stability and establishing mechanistic modeling of microstructural evolution.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Materials Science, Ceramics
A. Yu. Potanin, A. N. Astapov, Yu. S. Pogozhev, S. I. Rupasov, N. V. Shvyndina, V. V. Klechkovskaya, E. A. Levashov, I. A. Timofeev, A. N. Timofeev
Summary: The kinetics and mechanism of oxidation of ceramics based on HfB2 and SiC were investigated. The ceramics showed high structural and chemical homogeneity, with varying properties depending on the ratio between the main components.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
W. Amsellem, H. Yazdani Sarvestani, V. Pankov, Y. Martinez-Rubi, J. Gholipour, B. Ashrafi
Summary: This study explores the use of a fiber picosecond laser for subtractive manufacturing of SiC ceramic, aiming for minimal surface damage and high precision. Various laser processing parameters were analyzed to achieve deep high-quality cuts with minimum surface roughness and redeposited material. The study also identified processing parameters for shallow and deep high-precision SiC cutting.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Qiankun Xu, Qingliang Shan, Jianbao Hu, Anze Shui
Summary: In this paper, a new kinetic model considering both oxidation and volatilization kinetics is established and successfully applied to analyze the oxidation process of SiC-B4C-xAl(2)O(3) ceramics and other systems. The model takes into account the effects of diffusion area and volume changes during the oxidation process, and the physical meaning of each parameter is well-defined. The practicality of the model is verified by experimental data, showing its applicability to systems with both oxidation and volatilization, as well as systems where only oxidation is involved.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Optics
Feng Yang, Zhigang Dong, Renke Kang, Cheng Liu, Dongjiang Wu, Guangyi Ma
Summary: Reaction-bonded silicon carbide composites exhibit a complex ablation mechanism under femtosecond laser irradiation. The ablation threshold decreases with increasing pulse number and stabilizes. Photochemical ablation dominates at low fluence and low pulse number, while photothermal ablation dominates at higher fluence and pulse number. A preliminary model of the ablation mechanism was established based on surface morphology, microstructure, and physical phase analysis.
Article
Materials Science, Ceramics
Yuhang Bai, Peipei Wang, Baoxi Zhang, Huiling Du, Laifei Cheng
Summary: In this study, a laminated HfB2-SiC/Ti ceramic was characterized and tested for its ablation behavior at high temperatures. It was found that the ceramic exhibited strong oxidation protection, retarding the occurrence of oxidation weight loss and exfoliation at the interface.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Jiayong Wei, Songmei Yuan, Jiaqi Zhang, Ning Zhou, Wei Zhang, Jiebo Li, Wenzhao An, Mengxuan Gao, Yanzhe Fu
Summary: This study investigated the ablation behavior and mechanisms of SiC/SiC composites in different environments, demonstrating thermochemical corrosion dominance in air and a combination of thermomechanical denudation and thermochemical corrosion in water.
Article
Materials Science, Ceramics
Raul Florez, Miguel L. Crespillo, Xiaoqing He, Tommi A. White, Gregory Hilmas, William G. Fahrenholtz, Joseph Graham
Summary: Ion irradiation on Zirconium Carbide (ZrCx) induces dislocation loops in the microstructure and an increase in carbon vacancies, while subsequent electron irradiation leads to the formation of nanosized tetragonal ZrO2 precipitates. The initial microstructure of ZrCx substrate plays a key role in the nucleation and growth of oxide islands.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Xinghong Zhang, Baihe Du, Ping Hu, Yuan Cheng, Jiecai Han
Summary: This study systematically investigated the thermal response, oxidation, and ablation behavior of various thermal protection materials under strong heat flux, high enthalpy, and low-pressure environments. The results showed that factors such as thermal conductivity, volumetric heat capacity, catalytic efficiency, emissivity, and oxidation characteristics played important roles in the thermal response. The study also compared and analyzed the oxidation and ablation behaviors of these materials under extreme environments, and evaluated the effect of pre-treatment on the performance and reusability of thermal protection materials.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Allan N. Kolek, Sophia R. Cooper, Kristopher D. Behler, Anindya Ghoshal, Tucker W. Moore, Andrew J. Wright, Victoria L. Blair, Richard F. Reidy, Marcus L. Young, Andrey A. Voevodin, Samir M. Aouadi
Summary: This study investigates the effects of processing conditions on the fabrication of dense, ablation-resistant HfC-SiC composites. The composite ceramics exhibited high relative density, fine microstructure, and good hardness. The research provides valuable insights into the development of effective thermal insulation materials.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Optics
A. Alejo-Molina, H. Hardhienata, P. A. Marquez-Aguilar, K. Hingerl
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2017)
Article
Materials Science, Ceramics
Abigail Parra Parra, Marina Vlasova, Pedro Antonio Marquez Aguilar, Tamara Tomila
SCIENCE OF SINTERING
(2017)
Article
Nanoscience & Nanotechnology
Oleksii Kuda, Nataliia Pinchuk, Oleksandr Bykov, Tamara Tomila, Olena Olifan, Maryna Golovkova
NANOSCALE RESEARCH LETTERS
(2018)
Article
Engineering, Environmental
Marina Vlasova, Abigail Parra Parra, Pedro Antonio Marquez Aguilar, Ariadna Trujillo Estrada, Veronica Gonzalez Molina, Mykola Kakazey, Tamara Tomila, Virginia Gomez-Vidales
Article
Nanoscience & Nanotechnology
Oleksii Kuda, Nataliia Pinchuk, Oleksandr Bykov, Tamara Tomila, Olena Olifan, Maryna Golovkova
NANOSCALE RESEARCH LETTERS
(2018)
Article
Engineering, Electrical & Electronic
A. O. Kozak, V. I. Ivashchenko, O. K. Porada, L. A. Ivashchenko, T. Tomila, V. S. Manjara, G. Klishevych
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2018)
Article
Materials Science, Multidisciplinary
A. A. Onoprienko, V. I. Ivashchenko, A. O. Kozak, A. K. Sinelnichenko, T. V. Tomila
JOURNAL OF SUPERHARD MATERIALS
(2019)
Article
Materials Science, Ceramics
V. G. Kolesnichenko, M. V. Zamula, Yu. V. Yurchenko, O. V. Chudinovych, V. A. Makogon, N. I. Tyschenko, O. V. Shyrokov, A. V. Sameliuk, T. V. Tomila, O. A. Kornienko, A. V. Ragulya
POWDER METALLURGY AND METAL CERAMICS
(2019)
Article
Nanoscience & Nanotechnology
A. Synytsia, O. Sych, A. Iatsenko, T. Babutina, T. Tomila, O. Bykov, O. Olifan, T. Lobunets, A. Perekos, N. Boshytska
Summary: Magnetite nanopowders were synthesized using chemical precipitation and thermal decomposition methods, with the synthesis time not significantly affecting phase composition. Increasing chemical precipitation time led to a decrease in specific saturation magnetization and coercive force, while thermal decomposition significantly improved magnetic properties.
APPLIED NANOSCIENCE
(2022)
Article
Medicine, General & Internal
M. M. Zahornyi, O. P. Yavorovsky, V. M. Riabovol, N. I. Tyschenko, T. F. Lobunets, T. V. Tomila, O. V. Shirokov, A. V. Ragulya, Ye. M. Anisimov
Summary: The study shows that titanium dioxide nanoparticles possess various properties, such as adsorption, photocatalysis, bactericidal, virucidal, and fungicidal effects, making them suitable for antibacterial coatings and air and water disinfection. In addition to assessing the physicochemical characteristics of titanium dioxide, its toxicological effects were also evaluated to prevent potential harm to humans and the environment. To enhance the properties of nano-TiO2, nanopowders and composites with silver were synthesized, resulting in increased antibacterial properties. The nanocomposite was classified as moderately dangerous based on acute intraperitoneal toxicity parameters.
MEDICNI PERSPEKTIVI
(2022)
Proceedings Paper
Nanoscience & Nanotechnology
A. O. Kozak, V. I. Ivashchenko, O. K. Porada, L. A. Ivashchenko, O. O. Sytikov, V. S. Manzhara, T. Tomila
MICROSTRUCTURE AND PROPERTIES OF MICRO- AND NANOSCALE MATERIALS, FILMS, AND COATINGS (NAP 2019)
(2020)
Article
Materials Science, Multidisciplinary
O. Sych, O. Kuda, M. Demyda, N. Pinchuk, T. Tomila, O. Bykov, Y. Evych, A. Chodara, W. Lojkowski
FUNCTIONAL MATERIALS
(2020)
Article
Chemistry, Physical
A. O. Kozak, O. K. Porada, V. I. Ivashchenko, L. A. Ivashchenko, P. L. Scrynskyy, T. V. Tomila, V. S. Manzhara
APPLIED SURFACE SCIENCE
(2017)
Article
Materials Science, Multidisciplinary
O. Sych, A. Iatsenko, H. Tovstonoh, T. Tomila, Y. Yevych
FUNCTIONAL MATERIALS
(2017)
Article
Materials Science, Ceramics
M. Vlasova, A. Fedotov, I. Mendoza Torrez, M. Kakazey, V. Komlev, P. A. Marquez Aguilar
CERAMICS INTERNATIONAL
(2017)
