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A nonradiographic strategy to real-time monitor the position of three-dimensional-printed medical orthopedic implants by embedding superparamagnetic Fe_(3)O_(4) particles

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Interdisciplinary materials 2024年第1期3卷 133-149页

作者： Yike Li Peng Chen Zhenhua Wu Congcan Shi Peng Chen Yizhuo Xu Xiaojun Chen Manhui Chen Yuxin Li Chunze Yan Yunsong Shi Bin Su State Key Laboratory of Material Processing and Die and Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhanPeople's Republic of China School of Materials Science and Engineering Wuhan University of TechnologyWuhanPeople's Republic of China Department of Orthopaedics Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanPeople'sRepublic of China

Monitoring the position of orthopedic implants in vivo is paramount for enhancing postoperative *** radiographic methods,although effective,pose inconveniences to patients in terms of specialized equipment requirements and delays in rehabilitation ***,a nonradiographic design concept for real-time and precisely monitoring the position of in vivo orthopedic implants is *** monitoring system encompasses an external magnetic field,a three-dimensional(3D)-printed superparamagnetic intervertebral body fusion cage(SIBFC),and a *** SIBFC with a polyetheretherketone framework and a superparamagnetic Fe_(3)O_(4) component was integrally fabricated by the high-temperature selective laser sintering *** to the superparamagnetic component,the minor migration of SIBFC within the spine would cause the distribution change of the magnetic induction intensities,which can be monitored in real-time by the magnetometer no matter in the static states or dynamic bending *** horizontal migration,occurrences of intervertebral subsidence in the vertical plane of the vertebrae can also be effectively distinguished based on the obtained characteristic variations of magnetic induction *** strategy exemplifies the potential of superparamagnetic Fe_(3)O_(4) particles in equipping 3D-printed orthopedic implants with wireless monitoring capabilities,holding promise for aiding patients'rehabilitation.

关键词： 3D printing implanted medical devices orthopedic rehabilitation position monitoring superparamagnetic

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Recent progress of Ga_(2)O_(3)materials and devices based on the low-cost,vacuum-free Mist-CVD epitaxial growth method

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Fundamental Research 2024年第5期4卷 1292-1305页

作者： Zeyulin Zhang Pengru Yan Qingwen Song Haifeng Chen Wentao Zhang Hao Yuan Fengyu Du Dinghe Liu Dazheng Chen Yuming Zhang Wide Bandgap Semiconductor Technology Disciplines State Key Laboratory School of MicroelectronicsXidian UniversityXi'an 710071China Xidian-Wuhu Research Institute Wuhu 241000China Key Laboratory of Advanced Semiconductor Devices and Materials School of Electronic EngineeringXi'an University of Posts and TelecommunicationsXi'an 710121China Guangxi Key Laboratory of Optoelectronic Information Processing School of Optoelectronic EngineeringGuilin University of Electronic TechnologyGuilin541004China

Compared with silicon,gallium nitride,silicon carbide,and other traditional semiconductors,gallium oxide(Ga_(2)O_(3))who possesses,an ultrawide bandgap of approximately 5.0 eV and a higher breakdown field strength of approximately 8 MV/cm has attracted increasing attention from researchers,especially for the potential application in power ***,Ga_(2)O_(3)material has natural ultraviolet detection ability for photodetectors due to its ultrawide *** future commercial applications put forward an urgent require for high-quality epitaxial Ga_(2)O_(3)material in an efficient growth method at a lower *** there are some conventional methods for single crystal Ga_(2)O_(3)film epitaxial growth such as MBE and MOCVD,these methods always need a vacuum growth environment and expensive *** a fast-growing method,Mist-CVD gives the growth of Ga_(2)O_(3)in a vacuum-free,process-simple,and low-cost method,which will greatly reduce the cost and facilitate the development of Ga_(2)O_(3).This review has summarizes the Mist-CVD epitaxy growth mechanism of Ga_(2)O_(3),recent progress in the Ga_(2)O_(3)film epitaxial growth,and various device properties based on the Mist-CVD *** work aims to provide help for the development of Ga_(2)O_(3)material growth and device applications.

关键词： Gallium oxide Epitaxy growth Mist-CVD Single crystals Gallium oxide devices

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Solar evaporator coupled with strong/weak convection and its cascade utilization

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Science Bulletin 2025年第8期70卷 1264-1274页

作者： Zhengtong Li Jia-Han Zhang Jing Zhang Peng Yan Tao Yang Chao Yang Peng Lin Taotao Meng Meng An Yingtang Zhou Xingtao Xu The National Key Laboratory of Water Disaster Prevention Yangtze Institute for Conservation and DevelopmentState Key Laboratory of Hydrology-Water Resources and Hydraulic EngineeringHohai UniversityNanjing 210098China Electronic-Photonic Smart Sensing Device R&D Team Inner Mongolia Key Laboratory of Intelligent Communication and Sensing and Signal ProcessingSchool of Electronic Information EngineeringInner Mongolia UniversityHohhot 010021China Ningbo Key Laboratory of Green Petrochemical Carbon Emission Reduction Technology and Equipment Zhejiang Institute of Tianjin UniversityNingbo 315201China Department of Mechanical Engineering The University of TokyoTokyo113-8656Japan Marine Science and Technology College Zhejiang Ocean UniversityZhoushan 316022China College of Material Science and Engineering Nanjing Forestry UniversityNanjing 210037China

Modulating the macro/nanoarchitecture of evaporators to effectively harness diverse renewable energy sources is of paramount importance for optimizing the performance of solar-driven interfacial *** by the geometric structure of a windmill,we designed an innovative solar evaporator that expertly harnesses both strong and weak *** the purification of heavy metal wastewater,the maximum evaporation rate can reach 4.95 kg m^(−2)h^(−1)under one sun irradiation by introducing an ultralow wind flow(0.1 m s^(−1)),yielding an evaporation rate that is twice that of traditional ***,the gradual deposition of inorganic salt sediments on the evaporator surface is clearly *** address this issue,we present several innovative proof-of-concept cascade treatments that significantly extend the evaporator’s operational *** innovative design and exceptional performance of this solar evaporator open avenues for advancements in sustainable water treatment,energy generation,and environmental remediation.

关键词： Interfacial evaporation Petiole-based solar evaporators Secondary flow Cascade utilization Wastewater treatment

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Visualization and Monitoring of Shell-making Process in Investment Casting 75

Visualization and Monitoring of Shell-making Process in Inve...

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75th World Foundry Congress, WFC 2024

作者： Feng, Qian Hu, Kehui Lu, Zhigang State Key Laboratory of Tribology in Advanced Equipment Tsinghua University Beijing100084 China Department of Mechanical Engineering Tsinghua University Beijing100084 China Key Laboratory of Advanced Materials Processing Technology Ministry of Education Tsinghua University Beijing100084 China State Key Laboratory of Clean and Efficient Turbomachinery Power Equipment Tsinghua University Beijing100084 China

Shell-making process is a critical step in investment casting for shape control, and breaking through the "black box" of this process remains a challenging issue in its research. This paper introduces blue light scanning technology into the study of investment casting shell processes, using samples with cantilever beam structures as research objects. It explores the influence of cantilever structure inclination angles on shell wall thickness and deformation. The feasibility and effectiveness of this method are demonstrated through numerical simulation results. This approach achieves visualization and digitalization of the layer-by-layer shell preparation process, providing a new technical pathway for investigating shell formation mechanisms. © 2024 75th World Foundry Congress, WFC 2024. All rights reserved.

关键词： Nanocantilevers

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Ceramic Stereolithography in Investment Casting: Recent Progress and Applications 75

Ceramic Stereolithography in Investment Casting: Recent Prog...

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75th World Foundry Congress, WFC 2024

作者： Hu, Kehui Wang, Haoyuan Lu, Zhigang State Key Laboratory of Tribology in Advanced Equipment Tsinghua University Beijing100084 China Department of Mechanical Engineering Tsinghua University Beijing100084 China Key Laboratory of Advanced Materials Processing Technology Ministry of Education Tsinghua University Beijing100084 China State Key Laboratory of Clean and Efficient Turbomachinery Power Equipment Tsinghua University Beijing100084 China

Stereolithography-based ceramic additive manufacturing represents a promising technology for creating complex ceramic components with high precision. The technology's ability to form intricate structures and its compatibility with various ceramics make it particularly advantageous for rapid prototyping and low-volume production. This work discusses the recent progress and applications of stereolithography-based ceramic parts in the investment casting industry, particularly in the production of ceramic cores, shells, integrated core-shells, and filters, highlighting its potential to significantly accelerate production and enhance complexity. © 2024 75th World Foundry Congress, WFC 2024. All rights reserved.

关键词： Investment casting

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Functionalization design of zinc anode for advanced aqueous zinc-ion batteries

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SusMat 2024年第2期4卷 89-124页

作者： Ziyi Feng Yang Feng Fangfang Fan Dezhao Deng Han Dong Shude Liu Ling Kang Seong Chan Jun Ling Wang Jing Zhu Lei Dai Zhangxing He School of Chemical Engineering North China University of Science and TechnologyTangshanChina State Key Laboratory of Advanced Chemical Power Sources College of ChemistryNankai UniversityTianjinChina Shanghai Frontiers Science Center of Advanced Textiles College of TextilesDonghua UniversityShanghaiChina Shanghai Key Laboratory of Multidimensional Information Processing East China Normal UniversityShanghaiChina School of Mechanical Engineering Yonsei UniversitySeoulSouth Korea

Rechargeable aqueous zinc-ion batteries(AZIBs)offer high energy density,low cost,and are environmentally friendly,rendering them potential energy storage ***,dendrite growth on the zinc anode and numerous side reac-tions during operation challenge their *** advancements have introduced various materials for the functionalization of zinc *** developments effectively mitigate the performance degradation of zinc anode,enhancing both its cycle stability and the overall performance of ***,the construction of functionalized zinc anodes is discussed,current materials(including organic,inorganic and their composites)for modified zinc anodes are categorized,and the protective mechanism behind functionalized zinc anodes is *** study concludes by outlining the characteristics of materials suitable for dendritic-free zinc anode construction and the prospects for future development directions of functionalized zinc anodes in AZIBs.

关键词： anode functionalization inorganic materials organic materials zinc-ion batteries

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Minimal Sintering Shrinkage Aluminum-Based Ceramic Cores Fabricated by Stereolithography 75

Minimal Sintering Shrinkage Aluminum-Based Ceramic Cores Fab...

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75th World Foundry Congress, WFC 2024

作者： Wang, Haoyuan Hu, Kehui Lu, Zhigang State Key Laboratory of Tribology in Advanced Equipment Tsinghua University Beijing100084 China Department of Mechanical Engineering Tsinghua University Beijing100084 China Key Laboratory of Advanced Materials Processing Technology Ministry of Education Tsinghua University Beijing100084 China State Key Laboratory of Clean and Efficient Turbomachinery Power Equipment Tsinghua University Beijing100084 China

This study explores the stereolithography-based fabrication of aluminum-based ceramic cores, aimed at minimizing sintering shrinkage. Stereolithography-based ceramic cores often exhibit significant shrinkage during sintering, limiting their applications. In this work, by adding silica and kyanite into the alumina, high mechanical performance while minimizing shrinkage were achieved. Results demonstrate that cores with 22% silica and 8% kyanite show nearly zero shrinkage, making them suitable for complex, high-precision investment casting applications. © 2024 75th World Foundry Congress, WFC 2024. All rights reserved.

关键词： Kyanite

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Controlled Synthesis of Proton-Conductive Porous Organic Polymer Gels via Electrostatically Stabilized Colloidal Formation

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CCS Chemistry 2024年第7期6卷 1767-1775页

作者： Bin Chen Yifeng Kuang Lu Liu Linkun Cai Zaoming Wang Panchao Yin Liangbin Huang Cheng Gu State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and DevicesSouth China University of TechnologyGuangzhou 510640 College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065 Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhou 510641 South China Advanced Institute for Soft Matter Science and Technology South China University of TechnologyGuangzhou 510640 Institute for Integrated Cell-Material Sciences Institute for Advanced StudyKyoto UniversityKyoto 606-8501

Porous organic polymers(POPs)have attracted extensive interest due to their structural diversity and predesigned ***,the majority of POPs are synthesized as insoluble and unprocessable powders,which greatly impede their advanced applications because of limited mass transport and inadaptation for device ***,we report a controlled synthetic strategy of macroscopic POP gels by a cation-stabilized colloidal formation mechanism,which is widely adaptable to a large variety of tetra-/tri-amino build blocks for the synthesis of Tröger’s base-linked POP gels,aerogels,and ionic *** POP gels combined the integrated advantages of hierarchically porous structures and tailorable mechanical stiffness,whereas they could load substantial amounts of phosphoric acids and construct unimpeded transport pathways for proton conduction,exhibiting unprecedented proton conductivity at subzero *** strategy offers a new solution to the intractable processing issues of POPs toward device applications with cutting-edge performances.

关键词： porous organic polymers Tröger’s base linkage gels superprotonic conduction subzero temperatures

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Rectification Effect of 3D-Printed Filters with Deflectors 75

Rectification Effect of 3D-Printed Filters with Deflectors

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75th World Foundry Congress, WFC 2024

作者： Li, Chaoke Wang, Haoyuan Feng, Qian Hu, Kehui Lu, Zhigang State Key Laboratory of Tribology in Advanced Equipment Tsinghua University Beijing100084 China Department of Mechanical Engineering Tsinghua University Beijing100084 China Key Laboratory of Advanced Materials Processing Technology Ministry of Education Tsinghua University Beijing100084 China State Key Laboratory of Clean and Efficient Turbomachinery Power Equipment Tsinghua University Beijing100084 China

A novel 3D-printed filter with integrated deflectors is proposed to enhance the state of metal liquid outflow. The rectification effect of filters with varying structural sizes was investigated through physical simulations. It was found that filters with smaller structural sizes allow the outflowing liquid to interact more readily under disturbance, promoting fluid convergence, but at the cost of reduced flow rates. With 3D printing, deflectors were integrated into a larger structural-size filter to guide fluid convergence, significantly enhancing the rectification effect and flow stability without reducing the flow rate. The filters proposed in this work allow for the decoupling of rectification and filtration functions, providing greater design flexibility for improving filter strength, filtration efficiency, and other critical performance attributes. © 2024 75th World Foundry Congress, WFC 2024. All rights reserved.

关键词： Electric rectifiers

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Corrigendum to“Design and fabrication of high-performance self-setting trimagnesium phosphate”[***.28(2023)348-357]

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Bioactive materials 2024年第7期37卷 313-314页

作者： Jiawei Liu Wen Hou Wenying Wei Jian Peng Xiaopei Wu Chenxi Lian Yanan Zhao Rong Tu Takashi Goto Honglian Dai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Biomedical Materials and Engineering Research Center of Hubei ProvinceWuhan University of TechnologyWuhan430070China Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory Chaozhou521000China New Industry Creation Hatchery Center Tohoku UniversitySendai980-8579Japan

The authors regret that the supplementary Fig.S12 is *** correction does not affect any of the results and conclusions in the ***.S11 and S12 are studies on hydration kinetics and hydration products of M/P=2 and M/P=4 *** the previous uploaded version,the caption and figures of the Fig.S12 are the same as *** have corrected the error and the correct figures are as *** authors are sorry for not checking the supplementary documents carefully before publication.

关键词： hydration correction kinetics

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