Article
Multidisciplinary Sciences
D. Navarro-Urrios, E. Kang, P. Xiao, M. F. Colombano, G. Arregui, B. Graczykowski, N. E. Capuj, M. Sledzinska, C. M. Sotomayor-Torres, G. Fytas
Summary: Optomechanical crystal cavities (OMCs) have rich potentials for detecting and indirectly analyzing biological particles such as proteins, viruses, and bacteria. By monitoring the frequency shift of thermally activated mechanical modes, OMCs can be utilized as sensors for submicrometer particles, providing information on their presence, quantity, and approximate position within the cavity region.
SCIENTIFIC REPORTS
(2021)
Article
Materials Science, Ceramics
Jingxuan Li, Yu Zeng, Yihang Fang, Nan Chen, Guoping Du, Aisheng Zhang
Summary: In this study, nanometer-sized rutile (La + Nb) co-doped TiO2 powders were synthesized using a sol-gel method to prepare ceramics with grain sizes less than 200 nm. The effect of co-doping concentration on microstructures and dielectric properties was investigated, with a 2% co-doping concentration showing high dielectric permittivity and low dielectric loss. The electron hopping and electron-pinned defect-dipole effect were considered as the main reasons for the excellent dielectric properties observed in the co-doped TiO2 ceramics.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Ranming Niu, Xianghai An, Linlin Li, Zhefeng Zhang, Yiu-Wing Mai, Xiaozhou Liao
Summary: By adjusting the Al content in Cu-Al alloys to control stacking fault energy (SFE), the mechanical properties and deformation mechanisms of the materials can be manipulated. The study revealed that the influence of sample size on strength decreased with decreasing SFE or increasing Al content, and a theoretical model was proposed to explain this size dependency.
Article
Chemistry, Multidisciplinary
Delyana Ratnasari, Eka Lutfi Septiani, Kiet Le Anh Cao, Tomoyuki Hirano, Nobuhiro Okuda, Hiroyuki Matsumoto, Takashi Ogi
Summary: Submicron-sized FeNi@SiO2 particles with precisely controllable shell thickness were successfully synthesized in this study using a swirler connector-assisted spray pyrolysis system. The thickness of the SiO2 shell can be tuned by adjusting the parameter conditions, and the fabrication method consistently yielded a high coating ratio of more than 94%. The study also investigated the particle formation process and emphasized the importance of controlling the preheater and SiO2 supplied amount.
Article
Chemistry, Physical
Hao Deng, Ziqi Chen, Yuanzhi Chen, Jie Mei, Wanjie Xu, Laisen Wang, Dong-Liang Peng
Summary: Solvothermal synthesis is an important method for preparing nickel particles with high crystallinity and low agglomeration. This study investigates the preparation of submicron nickel particles using a solvothermal approach with the assistance of different types of organic bases. The results show that the types of organic bases and solvents, as well as the amount of organic bases, have a significant impact on the particle size and morphology of nickel. Additionally, the formation mechanism of nickel particles is explored, and the magnetic properties of the particles are studied.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Engineering, Chemical
Jie Yin, Jun Zhang, Li Lv, Hui Zhong
Summary: This study investigates the enhancement of growth performance of fine particles in a supersaturated water vapor environment through the direct coupling of a magnetic field and heterogeneous condensation technology. The results show that the introduction of a magnetic field can reduce the number of submicron particles and increase the number of larger particles in the grown particles. Additionally, the average diameter of the grown particles in the environment with a magnetic field is larger compared to the environment without a magnetic field, under the same conditions.
Article
Green & Sustainable Science & Technology
Tengfei Guo, Hannian Gu, Ning Wang
Summary: In this study, diethylenetriaminepentaacetic acid (DTPA) was used to dissolve barium in barium slag and recover barium as submicron BaSO4 products through complexation and decomplexation process.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Nanoscience & Nanotechnology
Xiayi Feng, Ding Gao, Yipeng Jing, Junchao Qian, Zongqiang Cui, Juan Zhou, Xian -En Zhang, Dong Men
Summary: In this study, the intracellular pathway of micron-sized magnetic particles (M-MPs) mediated by self-assembled virus-like particles (VLPs) was investigated. The results showed that the intracellular movement of M-MPs was consistent with the virus infection pathway. This study provides experimental support for the active transport of M-MPs into other cell types, further expanding their applications.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Asep Bayu Dani Nandiyanto, Yusuke Kito, Tomoyuki Hirano, Risti Ragadhita, Phong Hoai Le, Takashi Ogi
Summary: This study demonstrated the preparation of spherical submicron YAG:Ce particles and investigated the correlation between particle outer diameter, crystallite size, and photoluminescence performance. Results showed that larger particle outer diameters allowed for better PL performance, but excessively large diameters could lead to scattering issues. This study provides valuable information for optimizing synthesis parameters in controlling particle characteristics for various applications such as lenses, solar cells, and LEDs.
Article
Chemistry, Physical
Zhangtao Shen, Yapei Zu, Yuqiu Chen, Jun Gong, Chao Sun
Summary: Exploring the influence of material morphology on microwave absorption performance is important for designing high-performance absorbers. In this study, a feasible coprecipitation strategy was used to prepare three types of Fe20Ni80 particles with different morphologies (ball-like, worm-like, and flower-like). The morphology, structure, and performance of the particles were compared and analyzed. The results showed that the worm-like particles had significantly better microwave absorption performance compared to the other particles. The arrangement of the worm-like particles optimized impedance matching and their large aspect ratio exhibited strong dielectric loss ability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Masao Akiyoshi, Shunya Koike, Takahiro Shimada, Hiroyuki Hirakata
Summary: In this study, the unique mechanical properties of submicron-sized graphite cantilevers were experimentally demonstrated, showing their ability to accommodate large out-of-plane deformations without fracturing and undergo self-restoration upon unloading. The cantilevers exhibited a nonlinear load-displacement relationship and their deformation was almost completely restored, even after large hysteresis loops during loading-unloading cycles. The results suggest a mechanism for the nonlinear and fully reversible deformation behavior of the specimens.
Article
Chemistry, Applied
Mai Shiozaki, Takuya Miyanishi, Hitoshi Tamiaki
Summary: The 3-vinyl group of methyl pyropheophorbide-a was chemically transformed into partially or fully deuterated groups through various reactions. Regioselectively deuterated pyropheophorbides were obtained with minimal loss of deuteration degree compared to the starting materials. Deuteration largely affected the infrared vibrational bands, slightly impacted specific proton signals, and did not change visible absorption bands in a solution.
Article
Materials Science, Multidisciplinary
H. Yibole, B. Lingling-Bao, J. Y. Xu, H. Alata, O. Tegus, W. Hanggai, N. H. van Dijk, E. Bruck, F. Guillou
Summary: This study demonstrates that (Fe,Co)(2)(P,Si) single crystals have promising magnetic properties for potential use as alternatives to rare-earth magnets. Silicon substitution improves the Curie temperature of the material, making it suitable for room temperature applications.
Article
Nanoscience & Nanotechnology
Daniil A. Eurov, Dmitry A. Kurdyukov, Alexander Medvedev, Demid A. Kirilenko, Maria Tomkovich, Valery G. Golubev
Summary: A new approach has been developed to synthesize submicron spherical silica particles with a controlled micro-mesoporous structure. The composition of silica precursor can affect the pore diameter of the particles, and incorporating carbon dots into silica particles can prevent aggregation and result in highly luminescent composite particles. LEDs based on the composite material exhibit bright visible luminescence with spectral characteristics similar to commercial cold white LEDs.
Article
Materials Science, Composites
John Otieno Odhiambo, Motoshi Yoshida, Akira Otsu, Li-Fu Yi, Tetsuhiko Onda, Zhong-Chun Chen
Summary: In this study, aluminum-matrix composites with submicron-sized ceramic particle reinforcement were synthesized and densified through reactive sintering and hot-extrusion processes. The reaction mechanisms, extrusion behavior, microstructure, and tensile properties of the composites were investigated. It was found that hot-extrusion was an effective method to densify the reactive-sintered porous composites, resulting in dense composites with improved yield and tensile strength. The presence of submicron hybrid ceramic particles enhanced the mechanical properties of the composites.
JOURNAL OF COMPOSITE MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Ryo Kasuya, Takeshi Miki, Hisashi Morikawa, Yutaka Tai
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
(2015)
Article
Engineering, Chemical
Ryo Kasuya, Takeshi Mild, Hisashi Morikawa, Yutaka Tai
MINERALS ENGINEERING
(2015)
Article
Engineering, Chemical
Ryo Kasuya, Takeshi Miki, Hisashi Morikawa, Yutaka Tai
MINERALS ENGINEERING
(2016)
Article
Engineering, Chemical
Ryo Kasuya, Takeshi Miki, Hisashi Morikawa, Yutaka Tai
INTERNATIONAL JOURNAL OF MINERAL PROCESSING
(2014)
Article
Physics, Applied
Daisuke Kodama, Kozo Shinoda, Ryo Kasuya, Masaaki Doi, Kazuyuki Tohji, Balachandran Jeyadevan
JOURNAL OF APPLIED PHYSICS
(2012)
Article
Materials Science, Multidisciplinary
Teppei Kikuchi, Ryo Kasuya, Shota Endo, Akira Nakamura, Toshiyuki Takai, Nils Metzler-Nolte, Kazuyuki Tohji, Jeyadevan Balachandran
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2011)
Article
Metallurgy & Metallurgical Engineering
Ryo Kasuya, Takeshi Miki, Hisashi Morikawa, Yutaka Tai
JOURNAL OF THE JAPAN INSTITUTE OF METALS AND MATERIALS
(2014)
Article
Materials Science, Multidisciplinary
Ryo Kasuya, Katsuhiro Nomura, Hirokazu Narita
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
Shunsuke Kuzuhara, Mina Ota, Fuka Tsugita, Ryo Kasuya
Review
Metallurgy & Metallurgical Engineering
Tomoya Suzuki, Ryo Kasuya, Hirokazu Narita
Summary: Effective refining of precious metals requires detailed knowledge about their chemical properties in leaching solutions. Speciation studies on precious metal ions in solution have been conducted for about a century, with recent advances in analytical technologies providing more detailed information. This review presents the dominant species of precious metal complexes in different solutions and their leaching systems, as well as discussing conventional and current speciation methods.
JOURNAL OF THE JAPAN INSTITUTE OF METALS AND MATERIALS
(2021)
Article
Thermodynamics
Futoshi Tanaka, Lkhagvasuren Gungaajav, Osamu Terakado, Shunsuke Kuzuhara, Ryo Kasuya
Summary: Various fluorine compounds, such as electrolytes and binders, are present in lithium-ion batteries. A novel pyrometallurgical process for metal recovery from spent LIBs emits toxic fluorides like hydrogen fluoride. Investigating HF emission behavior during thermal treatment of PVDF as the binder model, it was found that addition of calcium carbonate effectively suppressed the emission of HF.
THERMOCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Shunsuke Kuzuhara, Mina Ota, Ryo Kasuya
Summary: The study aims to recover PGMs from waste materials using Li salts, where Pt leaching is achieved with Li2CO3, and Rh and Pd leaching with HCl. The leaching rates of PGMs do not significantly change even when using LiF as the Li salt model. Furthermore, fluorine can be immobilized as MgF2 in the presence of cordierite during calcination.
Article
Chemistry, Multidisciplinary
Ryo Kasuya, Zdenka Lukaca Bujnakova, Matej Balaz, Shunsuke Kuzuhara, Maria Kancuchova, Peter Balaz
Summary: Platinum group metals are crucial for various applications, but their mining amounts are insufficient; this study shows that high-energy ball milling with cerium(IV) oxide can enhance platinum dissolution in hydrochloric acid, demonstrating the environmentally friendly characteristics and potential applications in recycling important noble metal substances from waste materials.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Materials Science, Ceramics
Ryo Kasuya, Takeshi Miki, Hisashi Morikawa, Yutaka Tai
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
(2013)
Article
Materials Science, Ceramics
Ryo Kasuya, Takeshi Miki, Yutaka Tai
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
(2013)
