Article
Materials Science, Ceramics
Bozhuan Lin, Kaihuai Yang, Xiaogang Bao, Jialiang Liu, Qiaohang Guo, Lei Zhang, Qianting Wang, Nengbin Hua
Summary: The study found that oxidation treatment can improve the wear resistance and corrosive-wear performance of Ti-based BMG, especially under wet-friction conditions. Increasing annealing temperature can enhance the resistance to pitting corrosion on the alloy surface.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Materials Science, Ceramics
Ming Zhang, Yujia Wang, Guanzhong Ding, Rui Zheng, Ranfeng Wei, Guoyang Zhang, Qijing Sun, Xiangjin Zhao, Li Liu
Summary: Superhydrophobic metal materials have great potential for use in precision blood-contacting medical devices. This study focuses on finding a metal material with excellent biocompatibility and superplastic forming ability to fabricate a superhydrophobic surface, which is of significant practical importance. The Zr-based bulk metallic glass was selected as the experimental sample, and a micro-nano hierarchical structure was etched by electrochemical method in an ultrasonic environment. The further modification resulted in a superhydrophobic surface with good biocompatibility. Electrochemical polarization tests showed that the superhydrophobic surface had long-term corrosion resistance in simulated body fluids. Blood and cell tests demonstrated that the superhydrophobic sample had an extremely low rate of hemolysis and effectively inhibited the adhesion of platelets and smooth muscle cells. The superhydrophobic sample surface also exhibited good mechanical durability and chemical stability. This study provides a new perspective on the application of Zr-based bulk metallic glass in blood-contacting medical devices.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Qian Jia, Qing Zhou, Yue Ren, Yin Du, Xiaoxing Zhao, Xian-Zong Wang, Haifeng Wang, Ben D. Beake, Feng Zhou
Summary: Ti45Zr16Cu10Ni9Be20 bulk metallic glass with deep cryogenic-cycling treatment (DCT) exhibited increased wear resistance at the cost of decreased hardness in macroscopic wear tests. The wear mechanism shifted from severe fatigue wear to mild ductile ploughing, while oxidation wear played a minor role. The competition between lower hardness and higher elastic recovery resulted in a lower friction coefficient, indicating the potential of DCT in designing wear-resistant BMGs.
MATERIALS CHARACTERIZATION
(2021)
Article
Engineering, Mechanical
Xiulin Ji, Yiping Shan, Cuicui Ji, Hui Wang, Zhanxi Zhao
Summary: The slurry erosion behaviors of Zr BMGs were investigated, showing an increase in volume loss rate with higher impact angles and velocities, indicating their brittle erosion characteristics. Additionally, surface devitrification and element variations were observed during the erosion tests on the BMGs.
Article
Materials Science, Multidisciplinary
Fei Sun, Shengtao Deng, Jianan Fu, Jiahua Zhu, Dandan Liang, Pengfei Wang, Hang Zhao, Feng Gong, Jiang Ma, Yanhui Liu, Jun Shen
Summary: In this study, an Ir-Ta-Ni-Nb bulk metallic glass (BMG) with outstanding high-temperature wear resistance was demonstrated and its potential applications in extreme environments were revealed. The wear behavior and mechanism were systematically investigated from room temperature to 750 degrees C. The results showed an improvement in wear resistance at a higher temperature of 750 degrees C, attributed to the formation of an oxide layer, which avoids violent wear of the BMG.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Yue Ren, Tingyi Yan, Zhuobin Huang, Qing Zhou, Ke Hua, Xiaolin Li, Yin Du, Qian Jia, Long Zhang, Haifeng Zhang, Haifeng Wang
Summary: This study demonstrates an improvement in wear resistance for a Ti-based bulk metallic glass composite at cryogenic temperatures. The wear resistance improvement is associated with the suppressed martensitic transformation and increased strength, making the material an excellent candidate for cryogenic wear applications.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Biophysics
Afsaneh Esmaeili, Seyed Amir Ghaffari, Maryam Nikkhah, Farshid Malek Ghaini, Farhad Farzan, Soheila Mohammadi
Summary: The study demonstrates that a metallic glass coating formed on stainless steel substrate exhibits superior biocompatibility, showing higher cell attachment and blood compatibility.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Kai-Ming Han, Hui Jiang, Ying-Min Wang, Jian-Bing Qiang
Summary: The addition of Ti was found to significantly affect the glass-forming ability and mechanical properties of Zr63.5-xTixAl9Fe4.5Cu23 BMGs. Higher Ti content initially increased the GFA and room-temperature plasticity of the BMGs, but this trend reversed after reaching a certain threshold. The Zr60.5Ti3Al9Fe4.5Cu23 BMGs showed excellent biocompatibility, biocorrosion resistance, and potential for use in biomedical devices.
Article
Chemistry, Physical
Tianzeng Liu, Yanchun Zhao, Li Feng, Pan Gong
Summary: An ultra-strong Ti-based bulk metallic glass composite was developed using the transformation-induced plasticity effect. This composite enhances the ductility and work-hardening capability of the amorphous matrix and possesses a continuous gradient microstructure. It exhibits good plasticity, toughness, strength, hardness, and wear corrosion resistance.
Article
Engineering, Mechanical
Longjiang Peng, Jian Li, Meng Zhang, Huaijun Lin, Zu Li, Wei Li
Summary: This study characterized the tribological behaviors of a Zr-based BMG material against GCr15 steel balls under different loads and frequencies. It was found that high coefficient of friction (COF) was observed under low load and high frequency, while low COF was observed under high loads or at low frequencies. The specific wear rate increased with both load and frequency, with frequency playing a more crucial role. Transition of wear mechanisms from oxidative wear and abrasive wear to adhesive wear was detected with increasing load and frequency, and the role of plastic deformation of BMG was illustrated. This study helps to understand the tribological properties of Zr-based BMGs under sliding conditions.
Article
Materials Science, Ceramics
Wei Yang, Ying Liu, Nengbin Hua, Shujie Pang, Yan Li, Peter K. Liaw, Tao Zhang
Summary: Ni-free Ti-based bulk metallic glasses with high glass-forming ability can be synthesized in a wide composition range by copper-mold casting. These glasses displayed good bio-corrosion resistance and biocompatibility in a simulated physiological environment, making them promising candidates as biomaterials.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Engineering, Mechanical
Yongming Zou, Zhaoguo Qiu, Zhigang Zheng, Gang Wang, Xingchen Yan, Shuo Yin, Min Liu, Dechang Zeng
Summary: This study investigated the tribological properties and wear mechanisms of ex-situ additively manufactured FeCrMoCB/Cu bulk metallic glass composite under different normal loads and sliding speeds. The findings showed that the composite exhibited good wear resistance, with the coefficient of friction decreasing and the wear rate increasing as the sliding speed increased. Additionally, the wear mechanisms shifted from abrasive wear to oxidation wear and adhesive wear with increasing normal load, and adhesive wear and fatigue wear became dominant as the sliding speed increased.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Chemistry, Physical
Peng Du, Tao Xiang, Zeyun Cai, Guoqiang Xie
Summary: In this study, a porous Ti45Zr10Cu31Pd10Sn4 bulk metallic glass (BMG) was developed using a one-step SPS method to mimic the biomechanical properties of natural bone. The research findings demonstrate that the porous BMG exhibits excellent corrosion resistance and biocompatibility.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Tianding Xu, Xiao-Dong Wang, Eric M. Dufresne, Yang Ren, Qingping Cao, Dongxian Zhang, Jian-Zhong Jiang
Summary: Anomalous fast atomic dynamics were discovered in a metallic glass with good glass forming ability, mainly attributed to the increased mobility of Cu atoms by Ag addition, leading to the formation of structural heterogeneity at the atomic level.
MATERIALS TODAY PHYSICS
(2021)
Article
Engineering, Biomedical
K. Sun, R. Fu, X. W. Liu, L. M. Xu, G. Wang, S. Y. Chen, Q. J. Zhai, S. Pauly
Summary: This study found that Zr-based BMG shows excellent cytocompatibility, promotes bone formation, stimulates blood vessel formation, and reduces the pain level during recovery, making it a suitable candidate for biomedical applications.
BIOACTIVE MATERIALS
(2022)
Article
Gastroenterology & Hepatology
Cheng Kong, Lei Liang, Guang Liu, Lutao Du, Yongzhi Yang, Jianqiang Liu, Debing Shi, Xinxiang Li, Yanlei Ma
Summary: This study investigated the interactions between gut microbiome, metabolites, and microbial enzymes in early-onset colorectal cancer (EO-CRC) patients. The results showed distinct associations between microbiome and metabolome in EO-CRC compared to late-onset CRC (LO-CRC). The study identified potential biomarkers for EO-CRC and achieved a powerful classification performance for distinguishing EO-CRC from controls. This research provides valuable insights into the pathogenesis of EO-CRC and highlights the potential of microbiome-derived biomarkers for non-invasive detection.
Article
Engineering, Civil
Haoran Chen, Xuedong Yan, Xiaobing Liu, Tao Ma
Summary: With the rapid development of internet technologies and shared mobility services, online ridesharing services have become popular worldwide. This study compares the operational performance of two major online ridesharing modes, ridesplitting and carpooling, using actual operating data provided by DiDi Chuxing. The findings indicate that ridesplitting has lower fuel-saving and distance-saving ratios compared to carpooling, and online ridesharing is not considered fuel-saving in terms of transportation system's fuel economy.
Article
Nanoscience & Nanotechnology
Zhiyuan Jing, Weiling Guo, Helong Yu, Shaojun Qi, Xiao Tao, Yulin Qiao, Wei Zhang, Xiaoying Li, Hanshan Dong
Summary: In this study, a simultaneous approach to reducing, nitrogen doping and noble metals coating of graphene oxide (GO) using an active-screen plasma (ASP) technique is reported. By doping noble metals and a small amount of iron and chromium, reduction, nitrogen doping and noble metals coating can be achieved on graphene oxide, resulting in a significant improvement in its electrical properties.
Article
Rheumatology
Haoran Chen, Huarui Liu, Wenting Lyu, Yin Liu, Mei Huang, Yingwei Zhang, Yuying Qiu, Yonglong Xiao, Hourong Cai, Jinghong Dai
Summary: This study retrospectively analyzed the clinical characteristics and risk factors of clinical recurrence in interstitial lung disease related to antisynthetase syndrome (ARS-ILD). Recurrence of ARS-ILD was common during medication intensity reduction, and age, lactate dehydrogenase (LDH), medication tapering duration, and discontinuation were identified as risk factors for recurrence.
CLINICAL RHEUMATOLOGY
(2023)
Article
Automation & Control Systems
Yuanmao Ye, Yongbin Zhang, Xiaolin Wang, Ka-Wai Eric Cheng
Summary: This article presents a new type of step-up multilevel inverter (MLI) using a front-side quasi-Z-source unit, which effectively limits the charging current variation and enhances the total voltage gain.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Yuanmao Ye, Minhao Chen, Xiaolin Wang, Lingling Cao
Summary: This article introduces a new boost-type common-ground photovoltaic (PV) inverter, which solves the problems of inrush charging current, input current quality, and boost capability by inserting a quasi-Z-source (qZS) unit into an SC-based common-ground inverter, and is experimentally verified.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2023)
Article
Engineering, Electrical & Electronic
Jianqiang Luo, Fei Teng, Siqi Bu, Zhongda Chu, Ning Tong, Anbo Meng, Ling Yang, Xiaolin Wang
Summary: This paper proposes a solution to address the traditional operational constraint issue in power systems considering converter-driven stability and elaborates on a power sensitivity-based power dispatch method to enhance stability margin and update operational constraint solutions.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2023)
Review
Chemistry, Multidisciplinary
Hui-Ying Tan, Jiali Wang, Sheng-Chih Lin, Tsung-Rong Kuo, Hao Ming Chen
Summary: Single-atom catalysts (SACs) are promising electrocatalysts for energy conversion and storage due to their efficient atom utilization and unique electronic properties. The local coordination structures of single metal centers play a significant role in catalytic performances, and understanding the dynamic changes of SACs during reactions is crucial for improving catalytic activity.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Zhenxue Zhang, Mikdat Gurtaran, Xiaoying Li, Hio-Ieng Un, Yi Qin, Hanshan Dong
Summary: In this study, N-type and P-type BiTe-based thin films were deposited on silicon, glass, and Kapton HN polyimide foil using magnetron sputtering technique. The morphology, microstructure, and phase constituents of the thin films were characterized by SEM/EDX, XRD, and TEM. The electrical conductivity, thermal conductivity, and Seebeck coefficient were measured by an advanced in-plane test system. The power output (open-circuit voltage and electric current) of the thin films was measured at different temperature gradients using a custom-built apparatus. The impact of deposition parameters and the dimensions of the thin films on the power output were investigated to optimize the thin-film flexible TE device for thermal energy harvesting.
Article
Gastroenterology & Hepatology
Xiaoduan Zhuang, Shaoheng Zhang, Guiquan Chen, Zongqi Luo, Huiqin Hu, Wenfeng Huang, Yu Guo, Yongwen Ouyang, Liang Peng, Qing Qing, Huiting Chen, Bingsheng Li, Jie Chen, Xinying Wang
Summary: This study aimed to explore the unsatisfactory histologically complete resection (CR) rate of small rectal neuroendocrine tumors (RNETs) and its associated risk factors and clinical outcomes. The study found that polypectomy, a central depression, and treatment in the early period were risk factors for incomplete resection (IR). Further analysis revealed that an atypical hyperemic appearance and treatment in the early period were significant predisposing factors for inappropriate choice of polypectomy.
GASTROENTEROLOGY REPORT
(2023)
Article
Chemistry, Physical
Mikdat Gurtaran, Zhenxue Zhang, Xiaoying Li, Hanshan Dong
Summary: In this study, a closed-field unbalanced magnetron sputtering system was used to deposit CrSi coatings on 316 austenitic stainless steel. The oxidation behavior of the coatings at elevated temperatures was investigated and the optimized coating for stainless steel protection was identified. It was found that a small amount of Si in Cr coatings effectively protected the stainless steel, while a high Si content made the coating more brittle and prone to damage at high temperatures.
Article
Chemistry, Physical
Xinhe Xiong, Xiaoying Li, James Alexander, Zhenxue Zhang, Hanshan Dong
Summary: This paper introduces a novel catalytic ceramic conversion treatment (C3T) method for Zr702 alloy, which involves pre-depositing a catalytic film before the ceramic conversion treatment. The formed ceramic layer significantly improves the surface hardness and tribological properties of the alloy.
Article
Automation & Control Systems
Zhongjing Yu, Gangyi Zhang, Jingyu Chen, Haoran Chen, Duo Zhang, Qinli Yang, Junming Shao
Summary: This paper proposes a noise-resistant graph embedding method, called NGE, which leverages subspace clustering information to capture community structure and reinforce the relationship between topology and attributes. Experimental results demonstrate the superiority of this method in tasks such as community detection, link prediction, and node classification.
IEEE TRANSACTIONS ON CYBERNETICS
(2023)
Article
Chemistry, Physical
Xiao Tao, Yepeng Yang, Jiahui Qi, Biao Cai, W. M. Rainforth, Xiaoying Li, Hanshan Dong
Summary: Nitrogen-expanded austenite (γN), also known as S phase, is a metastable phase that has been extensively studied on AISI 304/316 stainless steel following low temperature N diffusion treatments. Nitrogen absorption and Si segregation were observed on the surface of FeCrNiSi0.5 medium entropy alloy (MEA) after active screen plasma nitriding (ASPN) treatment. The sluggish Cr segregation in the N-modified MEA surface could be attributed to Si-induced nanoprecipitation and the high equimolar Ni/Cr content in the host matrix.
APPLIED SURFACE SCIENCE
(2023)