Article
Materials Science, Multidisciplinary
S. Xu, J. Pons, R. Santamarta, I Karaman, O. Benafan, R. D. Noebe
Summary: This study reports the existence of a strain glass state induced by the precursor stages of H-phase precipitation in Ni-Ti-Zr shape memory alloys, with superelastic effect observed in compression. The material exhibits recoverable strain levels over 4% with little temperature dependence of the stress-strain curves.
Article
Chemistry, Physical
Shan Liu, Jie Zhu, Yao Lin, Guangchun Wang, Xiebin Wang
Summary: This study investigates the use of stretching-bending deformation (SBD) and aging treatments to improve the functional stability of NiTi alloys. The results show that repeated SBD treatment refines the grain size and introduces dislocations, leading to enhanced functional stability. Aging at specific conditions further improves the properties of the alloy due to the introduction of nanoscaled Ni4Ti3 precipitates.
Article
Materials Science, Multidisciplinary
Eduardo M. Sashihara, Pedro N. Inoue, Odair D. Rigo, Nelson B. Lima, Jorge Otubo
Summary: Ti-50.8Ni/Ti-55.9Ni alloy was processed by rotary swaging and rolling, resulting in bars with a total Area Reduction above 90%. The microstructural evolution, thermal and mechanical properties were compared throughout the different stages, and it was found that the rolled bar had a more regular and homogeneous structure.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Nanoscience & Nanotechnology
Pengfei Dang, Lei Zhang, Yumei Zhou, Qingkai Liang, Xiangdong Ding, Jun Sun, Dezhen Xue
Summary: We report a nanostructured Ti49.2Ni44.8Co6 (at.%) alloy with fully recoverable tensile superelasticity (& SIM; 6%) and high critical stress (> 500 MPa) at low temperatures from -150 to -50 degrees C. The alloy exhibits a significant adiabatic temperature change of 10.7 K during fast unloading at -50 degrees C. This alloy outperforms most shape memory alloys in terms of low-temperature tensile superelastic stress and adiabatic temperature change, with negligible degradation during stress cycles. These favorable properties are attributed to the enhanced thermodynamic stability of the parent phase and the remarkable strengthening effect of the partially recrystallized nanocrystalline structure with dispersed Ti3Ni4 nanoprecipitates.
SCRIPTA MATERIALIA
(2023)
Article
Materials Science, Multidisciplinary
Zhongli Liu, Xinxin Feng, Xiaoyang Yi, Kuishan Sun, Haizhen Wang, Zhiyong Gao, Xianglong Meng
Summary: The Ti-Ni-Hf shape memory alloy powders prepared by plasma rotating electrode process exhibit perfect sphericity, smooth surface, and refined grain size. The powders show typical self-accommodation configuration and various twins in the martensite. The martensitic transformation behaviors are closely related to annealing temperatures, transitioning from two-stage to single martensitic transformation with increasing temperature.
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
(2021)
Article
Chemistry, Physical
D. Piorunek, O. Oluwabi, J. Frenzel, A. Kostka, H. J. Maier, C. Somsen, G. Eggeler
Summary: In this study, advanced microstructural and thermal characterization methods were used to investigate the effects of additional alloy elements on high entropy shape memory alloys (HE-SMAs). The findings show that the concentrations of alloy elements significantly affect the phase transition temperatures of HE-SMAs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Shaohui Li, Daoyong Cong, Wenxin Xiong, Zhen Chen, Xin Zhang, Zhihua Nie, Shengwei Li, Runguang Li, Youkang Wang, Yuxian Cao, Yang Ren, Yandong Wang
Summary: In this study, a low-cost high-performance polycrystalline high-temperature shape memory alloy with extraordinary high-temperature superelasticity and a giant two-way shape memory effect has been developed. This alloy has the highest recoverable strain of superelasticity and two-way shape memory strain among bulk polycrystalline HTSMAs, showing great potential for high-temperature shape memory applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Hao Li, Kuishan Sun, Xianglong Meng, Wei Cai, Liancheng Zhao
Summary: Recently, the isothermal martensitic transformation in shape memory alloys (SMAs) has been investigated, but the underlying mechanisms are still not fully understood. In this study, the isothermal transition from B2 to B19 was confirmed in Ti-Ni-Cu-Co melt-spun ribbons. A thermally activated kinetic model was developed to characterize the kinetics and it agreed well with the experimental results. It was found that the nucleation density and activation energy played important roles in the isothermal transition.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Yu Cheng, Yu -Yung Ting, Chih-Hsuan Chen
Summary: The Ti-rich Ti50.9Ni48.9Si0.2 ribbon produced by melt-spinning process exhibited excellent recoverable superelasticity and elastocaloric cooling performance, showing high functional stability.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
Jianbo Pang, Yangyang Xu, Jin Tian, Yumei Zhou, Dezhen Xue, Xiangdong Ding, Jun Sun
Summary: The study shows that increasing Ti/Ni ratio significantly raises the martensitic transformation temperature, while changing Hf/Zr ratio does not have a big impact on it. The balance between the volume fraction of Ti2Ni-like precipitates and the Ni content of the matrix plays a crucial role in the evolution of macroscopic properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Physics, Applied
Yijia Zhang, Dexin Zhao, Juan C. C. Lago, Kelvin Xie, Patrick J. J. Shamberger
Summary: During martensitic phase transformations in thin films, the presence of additional substrate interface can inhibit the motion of martensite/austenite interface, resulting in hysteresis. To reduce this hysteresis, we studied Ni-Mn-Sn films with thicknesses ranging from 2.9 to 14.5 μm. Delaminating the films before annealing decreases hysteresis, while delaminating them after annealing has no significant effect on hysteresis. Substrate effects are caused by the mismatch in thermal expansion between the film and substrate, leading to the formation of dislocations at the interface and increased frictional resistance to martensite/austenite interface motion.
APPLIED PHYSICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Xiaoyang Yi, Lijie Sheng, Guoqiang Fu, Bin Sun, Bowen Huang, Kuishan Sun, Xianglong Meng, Zhiyong Gao, Shangzhou Zhang, Haizhen Wang
Summary: In this study, the addition of Zr element in Ti-V-Al based shape memory alloys led to changes in microstructural features, phase evolution, grain size, and martensitic transformation temperatures. By optimizing Zr content, the alloy exhibited high yield strength, large microhardness, and superior elongation. The presence of Zr also contributed to a fully recoverable strain and improved strain recovery characteristics.
MATERIALS CHARACTERIZATION
(2023)
Article
Chemistry, Physical
Yundong Zhao, Rui Ning, Hao Li, Sibo Sun, Haizhen Wang, Yuan Gao, Deqiang Zhao, Xingzhong Cao, Zhiyong Gao, Wei Cai
Summary: Large lattice distortion obtained by He ion irradiation improves the elastocaloric effect of Ti-Ni microwires, resulting in higher adiabatic temperature and isothermal entropy change. This method provides a new idea for the design of colossal elastocaloric effect materials and solid-state refrigeration applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Jie Fu, Hee Young Kim, Shuichi Miyazaki
Summary: This study demonstrates that adding nitrogen can help achieve a superior combination of high strength and ultra-low modulus in Ti-Zr based alloys. The addition of nitrogen facilitates the formation of nano-sized lattice modulation structure and impedes stress-induced martensitic transformation, resulting in higher apparent yield stress and non-linear elasticity in the alloy.
SCRIPTA MATERIALIA
(2021)
Article
Nanoscience & Nanotechnology
Bin Sun, Kuishan Sun, Xianglong Meng, Jun Wang
Summary: The twinning behavior of a Ti-26Nb alloy during thermal cycling was investigated using transmission electron microscopy. The study proposed the interrelationships between displacive transformation and twinning. The formation and growth of twins during the cycling process were observed, and the role of the interfacial twin boundary alpha phase in mediating the martensitic transformation was revealed.
SCRIPTA MATERIALIA
(2022)
Article
Materials Science, Multidisciplinary
Xiaoyang Yi, Bin Sun, Weihong Gao, Xianglong Meng, Zhiyong Gao, Wei Cai, Liancheng Zhao
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2020)
Article
Nanoscience & Nanotechnology
Kuishan Sun, Xiaoyang Yi, Bin Sun, Xinghe Yin, Xianglong Meng, Wei Cai, Liancheng Zhao
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2020)
Article
Chemistry, Physical
Xiaoyang Yi, Haizhen Wang, Bin Sun, Kuishan Sun, Chaohui Huang, Zhiyong Gao, Xianglong Meng, Wei Cai, Liancheng Zhao
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Chemistry, Multidisciplinary
Zhi Zeng, Dongbo Wang, Jinzhong Wang, Shujie Jiao, Yuewu Huang, Sixiang Zhao, Bingke Zhang, Mengyu Ma, Shiyong Gao, Xingguo Feng, Liancheng Zhao
Article
Crystallography
Zhi Zeng, Dongbo Wang, Jinzhong Wang, Shujie Jiao, Donghao Liu, Bingke Zhang, Chenchen Zhao, Yangyang Liu, Yaxin Liu, Zhikun Xu, Xuan Fang, Liancheng Zhao
Summary: The established 2D Bi2Se3/ZnO NWAs heterojunction shows enhanced photoresponsivity and broadband photoresponse, making it an ideal photodetector for broadband detection. The heterojunction exhibits three times the photoresponsivity of bare ZnO nanowire at 377 nm and achieves a broad spectrum response from UV to near infrared region.
Article
Materials Science, Composites
Xiaoyang Yi, Guijuan Shen, Xianglong Meng, Haizhen Wang, Zhiyong Gao, Wei Cai, Liancheng Zhao
Summary: In this study, in-situ TiB whiskers and La2O3 particles with network structure were designed and introduced into Ti-Ni composites. As the LaB6 content increases, the amounts of in-situ TiB whiskers and La2O3 particles also increase in the composites. The mechanical properties of the composites first decrease and then increase with the increasing LaB6 content.
COMPOSITES COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Jin Gong, Chang Liu, Songtao Cai, Song He, Liancheng Zhao, Xianshun Zeng
MATERIALS ADVANCES
(2020)
Article
Chemistry, Analytical
Songtao Cai, Chang Liu, Song He, Liancheng Zhao, Xianshun Zeng
ANALYTICAL METHODS
(2020)
Article
Chemistry, Organic
Jin Gong, Chang Liu, Songtao Cai, Song He, Liancheng Zhao, Xianshun Zeng
ORGANIC & BIOMOLECULAR CHEMISTRY
(2020)
Article
Materials Science, Multidisciplinary
Yuli Yin, Wenxia Zhang, Zhi Zheng, Ziyi Ge, Yi Liu, Fengyun Guo, Shiyong Gao, Liancheng Zhao, Yong Zhang
JOURNAL OF MATERIALS CHEMISTRY C
(2020)
Article
Chemistry, Organic
Jin Gong, Chang Liu, Xiaojie Jiao, Song He, Liancheng Zhao, Xianshun Zeng
ORGANIC & BIOMOLECULAR CHEMISTRY
(2020)
Article
Chemistry, Physical
Enfang He, Zhi Zheng, Yi Lu, Fengyun Guo, Shiyong Gao, Xinchang Pang, Genene Tessema Mola, Liancheng Zhao, Yong Zhang
JOURNAL OF MATERIALS CHEMISTRY A
(2020)
Article
Materials Science, Biomaterials
Jin Gong, Chang Liu, Xiaojie Jiao, Song He, Liancheng Zhao, Xianshun Zeng
JOURNAL OF MATERIALS CHEMISTRY B
(2020)
Article
Chemistry, Organic
Songtao Cai, Chang Liu, Xiaojie Jiao, Song He, Liancheng Zhao, Xianshun Zeng
ORGANIC & BIOMOLECULAR CHEMISTRY
(2020)
Article
Materials Science, Multidisciplinary
Enfang He, Yi Lu, Zhi Zheng, Fengyun Guo, Shiyong Gao, Liancheng Zhao, Yong Zhang
JOURNAL OF MATERIALS CHEMISTRY C
(2020)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
