Article
Chemistry, Physical
Yuanyuan Li, Xiaoyu Liu, Tianyuan Liang, Wenjie Liu, Jiyang Fan
Summary: The study shows that SiC quantum dots with small dimensions can naturally oxidize at a lower temperature to form core/shell and heteroepitaxial SiC/SiO2 quantum dots. The surface silica layer enhances the quantum efficiency by improving the carrier potential barrier and reducing the nonradiative transition rate, making it suitable for nanoscale electronic and photonic devices.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Guofeng Fan, Tie Li, Lili Zhao, Shengtao Zhang
Summary: The research used a self-developed medium-frequency induction heating furnace to carry out heat treatment and purification experiments on SiC powder, and found that high-temperature and long-time processing had a good purification effect but high powder loss. Low-temperature and short-time processing had low powder loss but the purification effect was not significant. Segmented purification processing achieved good purification effect while maintaining the utilization rate of raw materials.
Article
Chemistry, Multidisciplinary
Szabolcs Czene, Nikoletta Jegenyes, Olga Krafcsik, Sandor Lenk, Zsolt Czigany, Gabor Bortel, Katalin Kamaras, Janos Rohonczy, David Beke, Adam Gali
Summary: Silicon carbide nanoparticles (SiC NPs) are potential inorganic molecular-sized fluorescent biomarkers, and researchers have developed a method to directly introduce amino groups into aqueous SiC NPs. The applicability of amino-terminated SiC NPs is demonstrated by attaching bovine serum albumin, and it is found that the fluorescence intensity is highly sensitive to surface termination, which may have implications for nanometer-sized SiC NPs with optically read electron spins.
Article
Materials Science, Ceramics
Cheng Wang, Jiawen Zhou, Ming Song, Zhongshan Lu, Xianhui Chen, Yan Zheng, Weidong Xia
Summary: A novel process based on atmospheric nonthermal arc plasma was proposed for the continuous synthesis of ultrafine SiC nanoparticles with small size (5-9 nm) and narrow size distribution. The addition of hydrogen in plasma gas can tune the product characteristics and induce a blueshift in the photoluminescence peak of the beta-SiC nanoparticles. The as-prepared nanoparticles had a high band gap and showed a quantum confinement effect due to their ultrafine size.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Computer Science, Information Systems
Andrzej Kubiak, Zbigniew Lisik, Ewa Raj
Summary: In order to accurately monitor temperature distribution during high-temperature annealing and dopant diffusion processes in silicon carbide, researchers have developed a numerical model that utilizes the CAD approach for indirect temperature measurement. The model was created based on the commercial ANSYS package and allows for simulation of thermal fields under specified heat-dissipation conditions, considering the presence of gaseous and liquid media involved in heat exchange and transport. Simulation results obtained from the model show good consistency with reference temperature measurements, providing an accurate tool for verifying temperature distribution during manufacturing processes.
Article
Chemistry, Multidisciplinary
Ru Zhang, Quanjing Wang, Qingkui Chen, Aijun Tang, Wenbo Zhao
Summary: Femtosecond laser processing technology shows great potential for preparing micro and nanostructures of single-crystal SiC due to its high precision and non-destructive nature. This study investigates the effects of femtosecond laser ablation on SiC and analyzes the significance of various parameters on groove performance. The results demonstrate that fluence and numerical aperture have significant influence on groove characteristics, while scan speed, repetition rate, and multipass scanning also play notable roles. Experimental methods to increase aspect ratio and reduce heat-affected zone width are explored, and their significance is analyzed. Important factors include fluence, multipass scanning, and z-layer feed.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Multidisciplinary
Suorong Zhang, Jian Li, Bin He, Jian Yuan, Guoyan Chen
Summary: The properties of silicon carbide (SiC) materials, including high strength, wear resistance, and high brittleness, make them difficult to process using traditional methods. This paper proposes a blowing-assisted laser processing method to improve the laser processing capability of silicon carbide surfaces, successfully processing array microgroove structures.
APPLIED SCIENCES-BASEL
(2022)
Article
Crystallography
Hanwen Wang, Qiu Chen, Yongping Yao, Linlin Che, Baitao Zhang, Hongkun Nie, Rongkun Wang
Summary: In this study, preprocessing on 4H-SiC using laser slicing was performed, and it was found that good surface quality can reduce damage to the wafer surface, decrease cleavage, and improve the flatness and uniformity of the modified layer, thus significantly improving the quality and efficiency of laser slicing.
Article
Materials Science, Ceramics
Ruiguang Chen, Qin Lian, Xiaoning He, Jiuhong Wang, Dichen Li
Summary: This study successfully prepared SiC ceramic-based composites with complex morphologies and a maximum strength of around 460 MPa using a slurry made by mixing diamond powders with light-curing resin. The influence of the diamond volume fraction in the slurry on each process stage was investigated. The slurry demonstrates great potential for efficiently manufacturing SiC-based composites in mechanical parts requiring high strength and complex structures.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Review
Materials Science, Ceramics
Yiyuan Wang, Shun Dong, Xiutao Li, Changqing Hong, Xinghong Zhang
Summary: This article provides a comprehensive overview on the synthesis, properties and potential applications of silicon carbide (SiC) nanoparticles. It discusses various synthesis techniques, highlights the unique properties of SiC nanoparticles, and discusses their diversified applications. The article is informative and valuable for research in the field.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Shihao Sun, Qian Xia, Dong Feng, Hongqiang Ru
Summary: SiC colloidal inks were prepared using a two-step method and utilized for a novel robocasting forming method. The rheological properties were systematically investigated and the adsorption behavior of PEI was found to have a significant influence.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Kecheng Ye, Zhijiang Wang
Summary: This study synthesized B4C and SiC nanoparticles to prepare ultrafine-grained B4C-SiC ceramics and systematically investigated the effect of grain size on the mechanical properties of the composites. It was found that residual stress emerged in the B4C-SiC interface as B4C grains reached a nanostructured state, improving the toughness significantly to 5.13 MPa m1/2. The B4C-SiC composite also exhibited excellent hardness of 36.6 GPa, surpassing that of monolithic B4C ceramics. This study has important implications for the development of toughening mechanisms for B4C-SiC ceramics and presents a new strategy for producing high-performance ceramics.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
P. P. Shantharaman, V. Anandakrishnan, S. Sathish, M. Ravichandran, R. Naveenkumar, S. Jayasathyakawin, S. Rajesh
Summary: Powder metallurgy was used to synthesize SiC and Y2O3 reinforced aluminium composites with different weight ratios. The composites were studied for density, hardness, mechanical properties, tribological properties, and microstructural characteristics. The addition of SiC and Y2O3 improved the hardness and density of the composites. Increasing the SiC content increased the compressive strength of the composites. The thermal conductivity of the composites decreased with the addition of SiC particles. The samples with 20 wt% SiC content in the Al - 1 wt% Y2O3 matrix exhibited the best properties, including decreased wear rate.
Article
Materials Science, Ceramics
Soren Foghmoes, Jan Hoffmann Jorgensen, Karsten Agersted, Marianne Nielsen, Michela Della Negra
Summary: This study compares 12 dispersants for their de-agglomeration and stabilization effects on silicon carbide aqueous suspensions. It found that slurry stabilization in an alkaline environment is more effective than any tested dispersants. The functional groups, molecular weight, and stabilization mechanisms of dispersants play a key role in stabilizing silicon carbide slurries.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Kati Raju, Seunghwan Moon, Minwook Kim, Ha-Neul Kim, Hyun-Kwuon Lee, Jaehun Cho
Summary: This work presents a cost-effective and environmentally friendly approach to prepare high-quality and highly-crystalline silicon nitride (Si3N4) powders from silicon (Si) scrap. The method involves optimizing ball milling parameters with different solvents to obtain homogeneous and fine-micron sized silicon powders, and performing direct nitridation to produce Si3N4 powders. The results show that this approach offers a solution to recycle Si waste and produce cost-effective and high-quality Si3N4 powders.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Composites
Hansang Kwon, Akira Kawasaki, Marc Leparoux
JOURNAL OF COMPOSITE MATERIALS
(2017)
Review
Materials Science, Multidisciplinary
Marc Leparoux, Lauri Kollo, Hansang Kwon, Kaspar Kallip, Nagumothu Kishore Babu, Khaled AlOgab, Mahesh Kumar Talari
ADVANCED ENGINEERING MATERIALS
(2018)
Article
Engineering, Chemical
Antaryami Mohanta, Briac Lanfant, Marc Leparoux
PLASMA CHEMISTRY AND PLASMA PROCESSING
(2019)
Article
Optics
Antaryami Mohanta, Marc Leparoux
OPTICS AND LASERS IN ENGINEERING
(2019)
Article
Engineering, Chemical
Marie Le Dantec, Lucas Guniat, Matthias Leistner, Renato Figi, Davide Bleiner, Marc Leparoux, Patrik Hoffmann
Article
Chemistry, Physical
Briac Lanfant, Florian Baer, Antaryami Mohanta, Marc Leparoux
Article
Chemistry, Multidisciplinary
Hansang Kwon, Mart Saarna, Marc Leparoux
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
(2020)
Article
Chemistry, Physical
Marie Le Dantec, Mustafa Abdulstaar, Marc Leparoux, Patrik Hoffmann
Article
Chemistry, Physical
Di Cui, Antaryami Mohanta, Marc Leparoux
Article
Chemistry, Physical
Kenya Nakajima, Marc Leparoux, Hiroki Kurita, Briac Lanfant, Di Cui, Masahito Watanabe, Takenobu Sato, Fumio Narita
Summary: This study investigated the magnetostriction characteristics and crystal structure of additive-manufactured Fe-Co alloys using directed energy deposition. The results showed that the additive-manufactured Fe-Co parts had better magnetostrictive performance compared to the hot-rolled Fe-Co alloy. The elongated voids formed during additive manufacturing changed the magnetostrictive behavior in a perpendicular direction.
Article
Materials Science, Multidisciplinary
Sabin Mihai, Diana Chioibasu, Muhammad Arif Mahmood, Liviu Duta, Marc Leparoux, Andrei C. Popescu
Summary: A continuous wave Ytterbium-doped Yttrium Aluminum Garnet (Yb: YAG) disk laser was used for welding of AlMg3 casted alloy in this study, with hot vapor plume features recorded to identify a mechanism of pores detection. It was found that an increase in vapor area exceeding a threshold value was a sign of pores formation within the weld seam, with hot vapor intensity associated with the identification of pores' locations during welding. These findings were devised based on correlation between pores placement in welds cross-section microscopy images and the hot vapor plume features in those respective positions.
Article
Optics
Antaryami Mohanta, Matthias Leistner, Marc Leparoux
OPTICS AND LASERS IN ENGINEERING
(2020)
Proceedings Paper
Materials Science, Multidisciplinary
Hansang Kwon, Jehong Park, Kwonhoo Kim, Marc Leparoux, Jean-Francois Silvain, Akira Kawasaki
THERMEC 2018: 10TH INTERNATIONAL CONFERENCE ON PROCESSING AND MANUFACTURING OF ADVANCED MATERIALS
(2018)
Proceedings Paper
Physics, Fluids & Plasmas
Antaryami Mohanta, Briac Lanfant, Mehari Asfaha, Marc Leparoux
14TH HIGH-TECH PLASMA PROCESSES CONFERENCE (HTPP 14)
(2017)
Article
Physics, Applied
Antaryami Mohanta, Briac Lanfant, Mehari Asfaha, Marc Leparoux
APPLIED PHYSICS LETTERS
(2017)