Article
Materials Science, Ceramics
Yuli Wang, Yanhai Cheng, Yongxiong Chen, Rong Wang, Zilong Ping
Summary: This study investigated the preparation of silicon carbide ceramics with complex shapes using gel casting combined with 3D printing. The slurry preparation, gel curing, and ceramic molding processes were examined. The results showed that the ratio of components affected the fluidity and stability of the slurry. The temperature and initiator also influenced the gel curing speed. A 3D lattice-structured ceramic with high relative density and compressive strength could be obtained by gaseous silicon infiltration sintering.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Jinhui Tan, Rongxia Huang, Hua-Tay Lin, Malin Liu, Bing Liu, Rongzheng Liu
Summary: A novel gel-casting process using silicon carbide (SiC) ceramic as matrix and low toxic N-methylol acrylamide as organic monomer was proposed for fabricating fully ceramic microencapsulated (FCM) fuel with high TRISO particles loading capacity. FCM fuel pellets with high TRISO particles loading capacity were successfully prepared using SPS process. The gel-casting method achieved a high volume fraction of TRISO particles and avoided direct contact between the particles to prevent damage and ensure the performance and reliability of FCM fuel.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Materials Science, Ceramics
Cem E. Ozbilgin, Kiyoshi Kobayashi, Shinji Tamura, Nobuhito Imanaka, Tohru S. Suzuki
Summary: The ionic conduction of multiply charged ions is beneficial for energy storage and sensor applications, but their low mobility poses a significant obstacle. Crystallographic alignment of anisotropic grains can greatly improve the performance of ceramic electrolytes and enhance ionic conductivity, highlighting the importance of grain orientation in materials processing.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Soheil Esteki, Rasoul Saeidi, Ghasem Dini, Mostafa Milani
Summary: In this work, the rheological behavior of silicon carbide (SiC) slurries was optimized to produce 20 mm disc-shaped green bodies with high relative density. The slip-casted SiC green bodies were sintered using spark plasma sintering (SPS) under specific conditions. Different characterization methods were used to analyze the initial powders, green bodies, and sintered samples. The results showed that using B4C powder as a solid phase sintering aid resulted in sintered SiC samples with uniform and dense structures without visible pores, with an optimal percentage of 7 wt%.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Ceramics
Zixuan Qin, Wentao Xu, Junrong Ling, Tinghai Mu, Youfu Zhou
Summary: High-density SiC ceramics were successfully prepared using a low-toxicity gel-casting system and modified sintering aids. The study investigated the effects of processing parameters on material properties and obtained a sample with optimal mechanical properties.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Florimond Delobel, Julien Cambedouzou, Florence Moitrier, Sebastien Lemonnier
Summary: The study showed that the addition of low sintering aids content can improve the density of sintered β-SiC pellets close to theoretical density. The use of high sintering pressure helps maintain a fine microstructure and pristine cubic crystalline structure while preventing the formation of secondary phases.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Shuang Li, Yang Li, Chuncheng Wei, Peng Wang, Peiling Gao, Lijuan Zhou, Guangwu Wen
Summary: The fabrication route for silicon carbide membrane using boron carbide assistance in co-sintering process results in a reduction of sintering cycles and shorter preparation periods, as well as the formation of a straight and homogeneous selective layer on the substrate.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Yuki Otsuka, Isao Yamamoto, Motoyuki Iijima, Junichi Tatami
Summary: This study investigated the sintering behavior of green bodies molded under a strong magnetic field using the master sintering curve (MSC) theory. The results showed that the green bodies molded with a magnetic field had higher apparent activation energy during sintering and more consistent grain orientation compared to those without a magnetic field.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Michiyuki Yoshida, Mitsuki Hada, Osamu Sakurada, Koji Morita
Summary: Transparent tetragonal zirconia (3YTZ) was obtained by sinter forging nanoparticles at 950°C under an applied stress of 200 MPa. The initial compact made by gel-casting had a densely packed structure of nanoparticles. The resulting dense sample had a grain size of approximately 47 nm. The in-line transmittance of a 0.9 mm-thick sample was 28% at a wavelength of 640 nm, representing 37% of the theoretical value. The sample with the best transparency in this study had a slight whitish appearance. This study demonstrated the effectiveness of combining nanoparticle gel-casting with external pressure to lower the sintering temperature for obtaining transparent tetragonal zirconia.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Zeynep Ayguzer Yasar, Richard A. Haber
Summary: Fully dense boron carbide-silicon carbide composites were successfully produced by spark plasma sintering method, wet mixing method provided better uniformity and consistency in material properties.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Abolhassan Najafi, F. Golestani-Fard, H. R. Rezaie, Saviz Parsa Saeb
Summary: SiC-B4C nano powders were synthesized through sol-gel process in water-solvent-catalyst-dispersant system. The formation mechanism of the product during sol-gel process was evaluated using TEM, SEM, DTA/TG, BET, XRD, FTIR and DLS analysis methods. The nanoparticles had a high surface area and meso porous surfaces, with SiC-B4C particles in the range of 20-40 nm.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Shota Azuma, Tetsuo Uchikoshi, Katsumi Yoshida, Tohru S. Suzuki
Summary: This study presents a method for preparing highly structure-controlled B4C ceramics via strong magnetic field-assisted slip casting, with the removal of oxidic impurities by ethanol treatment before sintering resulting in significantly increased bending strength of the ceramic specimens.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Sepideh Khalili, Abolghasem Nourmohammadi, Mostafa Milani
Summary: The research aimed to fabricate pure transparent yttria ceramics through gel casting and vacuum sintering, using a specific processing method with a synthesized nanopowder. By optimizing the processing parameters, transparent yttria ceramics with 99% of the theoretical density were successfully produced.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
S. Cagri Ozer, Kartal Arslan, Servet Turan
Summary: A TiC segregated network structure (SNS) approach was used to enhance the thermoelectric properties of SiC. TiC particles were dry coated on SiC granules to form electrically conductive SNS, which were then sintered at 2200 degrees C. The TiC-SNS increased electrical conductivity and decreased thermal conductivity of SiC, but adversely affected the Seebeck coefficient. An optimized TiC content of 1.5 vol% resulted in a ZT value of 5.04 x 10-3, which is almost 90% higher than any previously reported value for SiC in the literature.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Jeong-Ah Yeom, Young-Wook Kim, Wook Ki Jung, Dong-Ik Cheong, Eul Son Kang
Summary: This study investigated the effects of B4C content on the specific stiffness, mechanical properties, and thermal properties of pressureless-sintered SiC ceramics. SiC ceramics with 2.5 wt% C and 0.7-20 wt% B4C as sintering aids were successfully sintered to over 99.4% of theoretical density at 2150 degrees C in Ar. The specific stiffness of SiC ceramics increased from 136.1 x 106 to 144.4 x 106 m2 & BULL;s- 2 as the B4C content increased from 0.7 to 20 wt%.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Review
Food Science & Technology
Yuandong Lin, Ji Ma, Qijun Wang, Da-Wen Sun
Summary: There is an increasing interest in the role of nondestructive and rapid detection technologies in the food industry. Machine learning techniques have shown great potential in handling complex data and building calibration models. Novel nondestructive technologies, such as acoustic analysis, machine vision, electronic nose, and spectral imaging, combined with machine learning, have wide applications in food quality assessment.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2023)
Article
Psychology, Biological
Graham Albert, Erika Wells, Steven Arnocky, Chang Hong Liu, Jessica K. Hlay, Carolyn R. Hodges-Simeon
Summary: This study examined whether facial sexual dimorphism influences selective attention and conducted several experimental paradigms to test this hypothesis. The results showed that masculinized faces did not attract participants' selective attention in the different experimental tasks.
ADAPTIVE HUMAN BEHAVIOR AND PHYSIOLOGY
(2023)
Article
Engineering, Environmental
Ying Ma, Hao Wang, Qiqi Wang, Xiaodong Cao, Huichang Gao
Summary: This study developed a multi-channel nerve guidance conduit (NGC) with dual electrical activity of piezoelectricity and conductivity to enhance peripheral nerve regeneration. In vitro and in vivo experiments demonstrated that the electroactive NGC promoted cell proliferation, differentiation, axonal regeneration, and functional recovery of peripheral nerves, indicating its great potential in repairing peripheral nerve injuries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Lei Wang, Haiyan Cheng, Zhiting Zhang, Yang Zhang, Jingwei Huang, Houde She, Chunli Liu, Qizhao Wang
Summary: Utilizing organic structures to combine with TiO2 is an effective strategy for improving the photo-catalytic performance of TiO2. However, there is limited research on the impact of modulation at the organic molecular level for COF construction on the optical and electronic features of TiO2-COF heterostructures. In this study, a nitrogen-rich covalent organic framework (COF) was covalently integrated with amino-propyltriethoxysilane modified TiO2 (APTES-TiO2) through a Schiff-base reaction. The hybridized TiO2@TMP-COF with honeycomb-like morphology showed enhanced intramolecular charge transfer and photocatalytic CO2 reduction reaction (CO2RR) compared to the structure-similar COF established hybrid, TiO2@TM-COF. The study demonstrates the potential of creating heterostructures to improve light absorption and charge delivery in photocatalysis.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Shulin Dong, Yingdong Qu, Ruirun Chen, Guanglong Li, Wei Zhang, Qi Wang, Hongze Fang, Jingjie Guo, Bo Yu
Summary: By designing and preparing Ti-44Al-4Nb-0.5Fe-0.1B and Ti-44Al-2Nb-2Fe-0.1B alloys, the study focuses on whether and why the hot deformation processing capability of the new alloys is improved. The results show that the Ti-44Al-2Nb-2Fe-0.1B alloy has lower true stress, moderate diffusion activation energy, lower stress exponent, larger hot processing window, lower dislocation density, and more adequate dynamic recrystallization, demonstrating its good hot deformation processing capability and service properties.
Article
Engineering, Electrical & Electronic
Tao Zhang, Guoli Li, Rui Zhou, Qunjing Wang, Lei Wang
Summary: Compared to traditional single-axis motors, reluctance spherical motors (RSMs) can generate rotational torque in three spatial latitudes on a single motor, enabling three degrees-of-freedom (DOF) motion. This paper addresses the problem of consuming huge computational resources and long computation time in calculating the torque of RSM using the finite element method (FEM) by developing a torque model using the virtual work method. The results show that this method greatly reduces the amount of computing and simulation work with accurate modeling, providing a theoretical basis for the study of energization strategies and real-time control of RSM.
INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS
(2023)
Article
Ecology
Shuying Yu, Xuesong Kong, Qi Wang, Zhiwei Yang, Jian Peng
Summary: This study quantitatively assessed flood resilience in the Dongting Lake Basin using a process-based evaluation framework. The results showed that the overall resilience of the basin was high, but the flood resilience in the Dongting Lake Eco-economic Zone was poor. The synergy of robustness and resistance dominated flood resilience, providing a new process perspective for improving it.
LANDSCAPE AND URBAN PLANNING
(2023)
Article
Materials Science, Multidisciplinary
Zecui Gao, Tengfei Zhang, Qimin Wang, Paul Heinz Mayrhofer
Summary: The performance of electrochemical capacitors is influenced by their surface area, stability, and conductivity. By using magnetron sputtering, columnar and zig-zag y-Mo2N thin-film electrodes were prepared, with the latter exhibiting a 4 times higher capacitance than the former. Both electrodes showed excellent cycling stability and the zig-zag y-Mo2N electrode demonstrated a higher power density and volumetric capacitance compared to the columnar y-Mo2N electrode. Additionally, the zig-zag y-Mo2N supercapacitors displayed mechanical flexibility up to a bending angle of 107 degrees.
MATERIALS & DESIGN
(2023)
Article
Engineering, Chemical
Yuefa Jia, Hongru Han, Yi Luo, Qizhao Wang, Bo Wha Lee, Chunli Liu
Summary: In this study, Z-scheme ZnFe2O4-SrTiO3 nanocomposite was prepared and used for tetracycline hydrochloride (TCH) degradation and CO2 conversion. The nanocomposite showed significantly higher TCH degradation efficiency and CO2 photoreduction activity compared to pure ZnFe2O4 and SrTiO3. The enhanced activities were attributed to improved solar energy utilization and efficient electron-hole pair separation through a Z-scheme charge transfer model. The results suggest that ZnFe2O4-SrTiO3 nanocomposite has great potential for wastewater purification and CO2 reduction to renewable solar fuels.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Orthopedics
Fei Guo, Shuaiying Jia, Qiyan Wang, Qinyu Liu, Mingquan Hu, Wenzhang Wang, Shijian Liu, Qiang Li, Bin Lu, Yeying Zheng
Summary: Patients with hypertension undergoing prone spine surgery are at risk of developing POCD, and intraoperative SstO2 is associated with POCD, while SctO2 shows no association with POCD.
ORTHOPAEDIC SURGERY
(2023)
Article
Biochemical Research Methods
Dongfang Li, Manli Zhao, Chao Tao, Xiaoqin Qian, Xiaojun Liu
Summary: Microcirculation imaging plays a significant role in the early diagnosis and assessment of various diseases. In this study, an optical-resolution photoacoustic microscopy (OR-PAM) was used to image the microvasculature of the nailbed. The sensitivity of imaging was significantly improved by hydrating the nail. In vivo experiments further demonstrated the enhanced sensitivity and practicality of OR-PAM, while the quantitative analysis of capillary loops provided valuable indicators for clinical microcirculation detection using OR-PAM.
JOURNAL OF BIOPHOTONICS
(2023)
Article
Physics, Applied
Shixian Liu, Lei Wang, Yong Chen, Luzhong Wang, Benzhe Zhou, Xinning Hu, Junsheng Cheng, Qiuliang Wang
Summary: The Institute of Electrical Engineering, Chinese Academy of Sciences has developed a prototype metal-insulation (MI) REBCO high-temperature superconducting (HTS) magnet for use in an electrodynamic suspension (EDS) system with an acceleration of beyond 8 g. A semi-analytical method was used to analyze the dynamic electromagnetic force distribution inside the magnet, and a full-size prototype was successfully fabricated.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
(2023)
Article
Plant Sciences
Kaihuai Li, Rongxian Hou, Xue Zhou, Chunlan Xiong, Cheng Li, Yong Wang, Fengquan Liu
Summary: In this study, a potential regulator of HSAF biosynthesis, RecX, was identified. Deletion of recX increased HSAF production, while overexpression of recX suppressed HSAF production. It was found that RecX directly binds to the promoter region of the lafB gene to inhibit its transcription and thus decrease HSAF production in L. enzymogenes.
PHYTOPATHOLOGY RESEARCH
(2023)
Article
Chemistry, Physical
Ziqiang Wang, Guanghui Yang, Pengjun Tian, Kai Deng, Hongjie Yu, You Xu, Xiaonian Li, Hongjing Wang, Liang Wang
Summary: In this study, we propose a method to encapsulate rhodium nanoparticles (NPs) on a palladium metallene film using a bromine initiator for catalyzing both the oxidation and reduction reactions. The Rh/Pd film exhibits excellent hydrogen evolution and hydrazine catalytic activities due to its abundant active sites and rapid charge transfer rate. In the hydrazine-assisted water splitting system, the Rh/Pd film only requires a low overpotential to produce hydrogen.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Yitian Zhou, Yifan Liu, Hehua Tang, Bo-Lin Lin
Summary: Controlling the binding energy of hydrogen by introducing a secondary metal is an effective approach to design Ru-based electrocatalysts for improving the HER performance. In this study, a series of multi-active site NiRu bimetallic materials with improved HER catalytic performance were synthesized through a facile microwave synthesis method. The Ni1Ru1/C sample, with the RuO2/NiRu heterogeneous interface, exhibited the best HER performance and achieved comparable overpotential to commercial Pt/C.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
