Article
Materials Science, Ceramics
Arshid Mir, Khushboo Iqbal, S. Rubab, M. A. Shah
Summary: This paper describes a novel one-step anodization synthesis of Fe-doped TiO2 nanotubes and analyzes the effect of doping concentration on the morphology, structure, and composition of the prepared samples. The results showed the formation of anatase phase with Fe incorporation in the TiO2 lattice. The absorption spectra showed a red shift and the photocurrent density of Fe-doped samples was significantly higher than that of the pristine TiO2 sample, with the best results obtained from a sample doped at a level of 0.5%.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Xinxia Yang, Yang Guo, Feng Cao, Hui Xu, Yifan Liu, Liangjun Yin, Chunhong Mu, Xian Jian
Summary: Plasma-modified FSA catalysts were used to efficiently convert acetylene into CNT arrays with a carbon conversion rate of up to 97.2%. The growth mechanism analysis confirmed the growth mode of CNT arrays and predicted the maximum theoretical yield, offering a solution for large-scale production of CNT arrays.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
David L. White, Brian A. Day, Zidao Zeng, Zachary M. Schulte, Noah R. Borland, Nathaniel L. Rosi, Christopher E. Wilmer, Alexander Star
Summary: The hybridization of a 2-D metal organic framework with single-walled carbon nanotubes has allowed for discrimination of carbohydrates based on molecular size. Liquid gated field-effect transistor devices show improved differentiation capabilities for carbohydrates of varying sizes. Molecular Dynamics calculations reveal decreased ion diffusivity in the presence of different sugars, supporting the proposed sensing mechanism of gate capacitance reduction with carbohydrate molecules in the pores.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Electrochemistry
Fumiaki Amano, Shimpei Nomura, Chihiro Tateishi, Satoshi Nakayama
Summary: TiO2 nanotube (TNT) photoanodes demonstrate effective oxygen evolution reaction (OER) in photoelectrochemical water oxidation. This study reveals that beta-PbO2 nanoparticles are selectively deposited on the catalytic site of the upper part of the TNT array with a length of around 1 μm, resulting in photocurrent decay. The deposition of PbO2 nanoparticles on both inner and outer surfaces of the tube walls is consistent with the charge separation mechanism at the space charge layers. The position of the OER site varies with the incident light wavelength due to the change in light penetration depth.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Biochemistry & Molecular Biology
Rabiatul Basria S. M. N. Mydin, Alam Mahboob, Srimala Sreekantan, Khairul Arifah Saharudin, Ekhlas Qaid Qazem, Roshasnorlyza Hazan, Mustafa Fadzil Farid Wajidi
Summary: In biomedical implant technology, nanosurface such as titania nanotube arrays (TNA) could provide better cellular adaptation for long-term tissue acceptance response. This study investigates genomic responses in epithelial cells model that are responsible for cell-TNA mechano-stimulus. The findings suggest that interaction between cells and TNA nanosurface improves structural and extracellular matrix support, cell polarity, adhesion properties, and cytoskeleton remodeling activities, thus enhancing biocompatibility properties for long-term interaction.
BIOTECHNOLOGY AND APPLIED BIOCHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Ke Wang, Justin Phelps, Reza Abdolvand, Jennifer Carter, Hoda Amani Hamedani
Summary: This study investigates the electrodeposition of zinc on nanoporous metal oxide titania nanotube arrays (TiO2 NTAs) using a zinc-containing deep eutectic solvent (Zn2+-DES). The morphology and electrochemical properties of the Zn/TiO2 NTAs were affected by substrate morphology and crystallinity, deposition temperature, zinc concentration, and deposition time. The electrodeposition resulted in the formation of two-dimensional zinc nanohexagons on the TiO2 NTAs. The Zn/TiO2 NTAs exhibited improved electrochemical properties and lower impedance, making them a promising material system for implantable electrochemical sensors.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Xinxia Yang, Longwei Wu, Jia Hou, Benyang Meng, Rashad Ali, Yifan Liu, Xian Jian
Summary: A high-yield production method using FeSiAl micro-flake catalyst for direct symmetrical growth of CNT arrays was developed, which showed ultra-high catalytic efficiency. The growth kinetics and mechanism were investigated by carefully considering reaction temperature and time. CNT arrays have the potential for application as conductive additives in high energy density ternary cathode materials.
Article
Chemistry, Multidisciplinary
Tianle Gong, Chengyuan Li, Xin Li, Hangyu Yue, Xufei Zhu, Ziyu Zhao, Renquan Lv, Junwu Zhu
Summary: A new method was applied to find enclosed nanotube embryos formed by oxygen bubbles, providing clear evidence that the nanotubes are formed by the oxygen bubble model, rather than by field-assisted dissolution. This sheds light on the formation and growth process of nanotube embryos, indicating the potential application of the 'oxygen bubble model' and current theories to other metals during anodization.
NANOSCALE ADVANCES
(2021)
Article
Chemistry, Multidisciplinary
Tianle Gong, Jieda Chen, Pengjin Fang, Lin Liu, Chengyuan Li, Aijun Han, Ye Song
Summary: The study reveals the growth mechanism of anodic TiO2 nanotubes at low temperatures, confirms the temperature's impact on nanotubes' size, and refutes the field-assisted dissolution theory. Additionally, the formation process of nanotubes is clearly explained through the novel two-step anodization method.
Article
Chemistry, Multidisciplinary
Weimin Dong, Yingjie Sun, Biao Wang, Mengqi Zhu, Jing Li, Xinguang Xu, Jiyang Wang
Summary: The borate piezoelectric crystal BTBO was grown successfully using the TSSG method. It exhibits high longitudinal piezoelectric coefficient and resistivity, as well as good piezoelectric temperature stability, making it a potential candidate for piezoelectric applications.
CRYSTAL GROWTH & DESIGN
(2022)
Review
Multidisciplinary Sciences
Aaron D. Franklin, Mark C. Hersam, H-S Philip Wong
Summary: This article briefly reviews the recent progress in materials, devices, and technologies related to carbon nanotube transistors, with emphasis on advancements from single-nanotube devices to implementations with aligned nanotubes and even nanotube thin films.
Article
Chemistry, Physical
Yuanyuan Kong, Mingxuan Sun, Xiaofang Hong, Ying Wang, Ahmad Umar
Summary: The preparation of a MoS2/CdS/TiO2 nanotube heterostructure enhances visible light response and electron transfer efficiency.
MoS2 coatings significantly improve the photoelectrochemical stability of CdS/TiO2 nanotube arrays.
The heterostructure exhibits promising photoelectrochemical properties for potential applications.
Article
Metallurgy & Metallurgical Engineering
Xiao-wei Ji, Pin-ting Liu, Jin-cheng Tang, Chang-jun Wan, Yan Yang, Zhi-li Zhao, Da-peng Zhao
Summary: The TNT arrays exhibit significant early antibacterial effects, mainly related to surface free energy and nano-topography. The antibacterial mechanisms include anti-attachment, anti-proliferation, and physical bactericidal effects.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2021)
Article
Chemistry, Physical
Taher Hajilounezhad, Rina Bao, Kannappan Palaniappan, Filiz Bunyak, Prasad Calyam, Matthew R. Maschmann
Summary: By utilizing physics-based simulation and image-based machine learning, it is possible to predict physical material properties of CNT forests with high accuracy, paving the way for high-throughput material discovery incorporating scanning electron microscope imagery.
NPJ COMPUTATIONAL MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Yunfan Guo, Enzheng Shi, Jiadi Zhu, Pin-Chun Shen, Jiangtao Wang, Yuxuan Lin, Yunwei Mao, Shibin Deng, Baini Li, Ji-Hoon Park, Ang-Yu Lu, Shuchen Zhang, Qingqing Ji, Zhe Li, Chenguang Qiu, Song Qiu, Qingwen Li, Letian Dou, Yue Wu, Jin Zhang, Tomas Palacios, Anyuan Cao, Jing Kong
Summary: In this study, a non-destructive soft-lock drawing method was developed to assemble high-density horizontal arrays of single-walled carbon nanotubes (CNTs). The assembled CNT bundles were then used as nanometer electrical contacts in high-density monolayer molybdenum disulfide (MoS2) transistors, demonstrating their potential for future electronic devices and advanced integration technologies.
NATURE NANOTECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Shuai Zhang, Shuye Zhang, Hongzhi Zhou, Kyung-Wook Paik, Tianran Ding, Weimin Long, Sujuan Zhong, Peng He
Summary: Microwave Hybrid Heating (MHH) is a promising method for material joining, allowing for selective and uniform heating. This experimental study focused on investigating the characteristics and reliability of joints made using nano-Sn-3.0Ag-0.5Cu soldering paste and MHH technique. The research findings showed that the shear strength of the joints reached its peak value under specific microwave power and exposure time, but decreased after thermal shock tests.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Peibin Ma, Mingyang Wang, Aiying Chen, Lijian Gu, Zhiyi Ding, Xiaogui Wang, Bin Gan
Summary: Nano-twinned boundaries in high-temperature alloys play a crucial role in regulating the distribution of nano-precipitates and enhancing mechanical properties.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Jiachen Zhang, Fan Lu, Xinxin Liu, Taiwen Huang, Rui Li, Changsheng Tan, Guojun Zhang, Lin Liu
Summary: This study investigates the effects of Re and Ta interactions on the precipitation of the TCP phase in experimental alloys under long-term thermal exposure. The study finds that microstructure segregation is not fully eliminated even with standard heat treatment, and the interaction between Re and Ta enhances the formation of the TCP phase. Thermodynamic calculations and first-principles analysis reveal that Re significantly improves the driving force of TCP phase precipitation. The study also observes a phase transition from the sigma-phase to the P-phase, with Ni playing a crucial role in the diffusion process.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Ronit Roy, Adil Shaik, Matthew Topping, Fei Long, Mark R. Daymond
Summary: This study demonstrates the improvements in characterizing localized dislocation distribution using the HR-EBSD method compared to the conventional approach. Two extreme examples of deformation conditions were investigated to show the efficacy of HR-EBSD in identifying dislocations and subtle features. The direct correlation between slip bands and HR-EBSD estimated GNDs is also presented, enhancing the scope of this approach in identifying individual slip bands.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Wenshan Guo, Hui Zhang, Qingjun Zhou, Guangchun Xiao, Ning Guo, Wei Zhao, Gang Wang
Summary: The microstructures and corrosion resistance of TC11 components were significantly improved using a high-power, high-speed laser metal deposition (LMD) process and subsequent post-heat treatment, with greater improvements observed in the deposition direction. The significant improvement of corrosion resistance in the deposition direction is mainly due to the weakening of the charged galvanic corrosion effect between the non-interlayer zone and interlayer zone.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Shuai Xu, Rui Cao, Junheng Gao, Yu Zhang, Haitao Zhao, Shuize Wang, Yuhe Huang, Guilin Wu, Honghui Wu, Chaolei Zhang, Xinping Mao
Summary: In this study, the microstructures and mechanical properties of interphase precipitation strengthening micro-alloyed steels were investigated. The addition of Cr was found to increase the yield strength without significant decrease of ductility. Thermodynamics analysis revealed that the addition of Cr led to grain refinement and decrease of sheet spacing of nanoprecipitates. Calculations showed that the decrease of interphase-precipitated carbides sheet spacing and the refinement of grain size were responsible for the strength enhancement of Cr microalloyed steel.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Zhaoxin Zhong, Biao Zhang, Yuhan Ren, Jian Ye, Jiawei Zhang, Feng Ye
Summary: In this study, bioinspired web-liked multiphase composites were successfully constructed using boron-modified polysilazane polymer. The composites consisted of long TiB nanowires as 'web' and hybrid TiC and Ti3Si particles as 'nodes'. The enhanced strength of these composites was attributed to the synergistic load transfer of the hybrid reinforcements. This study provides a promising design approach for developing high-performance composites with high reinforcement content, utilizing polymer instead of traditional ceramic powder.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Geng Liu, Linran Yu, Jie Su, Ran Ding, Min Xiong, Qi Gao
Summary: In this study, a flash austenitization heat treatment approach was used to achieve a dual-phase microstructure consisting of retained austenite and fine-grained ferrite in low-carbon TRIP steel. Phase-field simulations revealed the acceleration of ferrite transition kinetics in the Mn-depleted region and the influence of chemical heterogeneity of C and Mn on the stabilization of austenite.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Zhichao Yang, Dehui Zheng, Zhen Wang, Tingbin Liang, Shuangbao Wang
Summary: In this study, the configurations, formation process, and properties of the Cu-rich layer formed during TJE of Al alloys were revealed using aberration-corrected scanning TEM (STEM), STEM image simulations, and first-principles calculations. The results showed a new orientation relationship between the Cu-rich layer and Al matrix, and provided insights into the formation mechanisms of the Cu-rich layer and Cu diffusion zone.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Shuai Chen, Ruyu Tian, Jiayue Wen, Yanhong Tian
Summary: In this study, the interfacial microstructure evolution and reliability of Cu/Sn-3.0Ag-0.5Cu (SAC305)/Ni and Cu/Sn-3.0Ag-0.5Cu-0.05TiO2 (SAC305-0.05TiO2)/Ni interconnections under thermal shock were investigated. The results showed that the addition of TiO2 nanoparticles can suppress the growth of interfacial IMCs and improve the reliability of the connections.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Yunbin Lu, Yangju Feng, Wei Wang, Wenke Wang, Jianlei Yang, Wenzhen Chen, Guorong Cui, Dongdong Zhuang, Hongyang Cao
Summary: In order to improve the wear resistance of titanium alloy, titanium matrix composites with network distributed TiBw were fabricated. The results showed that the wear rate of the composites decreased by 17.2% at room temperature and 38.4% at high temperature compared to the TA15 alloy. The TiBw in the composites enhanced work hardening, improved thermal conductivity, and effectively hindered dislocation movement and promoted dynamic recrystallization during high-temperature wear.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Jubert Pasco, Lu Jiang, Thomas Dorin, Ali Keshavarzkermani, Youliang He, Clodualdo Aranas Jr
Summary: The unique structure and solute distribution of CoCrMo alloys produced using Laser Powder Bed Fusion technique require custom heat-treating processes to achieve the targeted phase distribution and mechanical properties. This study investigates the phase transformation behavior and precipitate distribution of CoCrMo samples after aging heat treatment. The results show differences in phase fraction and nucleation sites between directly aged and solution heat-treated samples.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Zipeng Ma, Meng Zhou, Baohong Tian, Yi Zhang, Heng Li, Xu Li, Jin Zou, Haoyan Hu, Ke Jing, Yong Liu, Alex A. Volinsky
Summary: In this study, two electrical contact composites were prepared using the vacuum hot pressing sintering endo-oxidation method. The addition of Y2O3 had no negative effects on the electrical conductivity and hardness of the composites. Moreover, it reduced the welding force and arc energy, and improved the stability of the contacts.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Wei Sun, Ning Cui, Shuling Zhang, Tiewei Xu, Xiaopeng Wang, Fantao Kong
Summary: A laminated composite was successfully fabricated and its microstructure and mechanical properties were investigated. The composite exhibited high bonding strength, improved flexural strength and fracture toughness, and superior tensile properties compared to the monolithic alloy.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Zih-You Wu, Yin-Ku Lee, Su-Yueh Tsai, Po-Yu Chen, Jenq-Gong Duh
Summary: With the development of the artificial intelligence (AI) industries, electronic packaging is advancing towards high density, high efficiency, and multi-functionality. The application of microbumps is necessary to achieve high density and small-scale interconnection. In this study, three types of full intermetallic compounds (IMCs) bumps were fabricated, and the mechanical and thermal properties of IMCs were analyzed. The results showed that the full IMCs bumps with added Ni and Zn exhibited consistent structure and excellent thermal stability, providing a reliable microstructure for application.
MATERIALS CHARACTERIZATION
(2024)