Article
Engineering, Mechanical
Yitian Zhao, Zhiqi Fan, Qiyang Tan, Yu Yin, Mingyuan Lu, Han Huang
Summary: In this study, a wear-resistant TiOxNy/alpha-Ti composite coating was successfully deposited onto Ti-6Al-4V, exhibiting high hardness and wear resistance due to the formation of reinforcing phases and excellent interfacial bonding.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Materials Science, Coatings & Films
Shenghao Zhou, Weichen Zhao, Zhaoguo Qiu, Songsheng Lin, Zhigang Zheng, D. C. Zeng
Summary: This study systematically investigated the mechanical behaviors and interfacial mechanisms of Ti-Mo-N coatings, which showed improved hardness and load-bearing capacity but also stress concentration due to Mo doping. The coatings exhibited enhanced plastic deformation ability, lower friction coefficient and wear rate compared to pure TiN coating.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Jing Gao, Zelin Yan, Shuang Liu, Yingfan Zhao, Tieshuai Li, Weiping Tong
Summary: By sintering, it was found that the microstructure and properties of Fe-Cr-B alloys changed with the increase of Mo content. The metal matrix content decreased, and the number and types of carbon-borides increased, resulting in improved wear resistance of the samples.
Article
Engineering, Mechanical
Zhaoli Liu, Hang Li, Jianliang Li, Jiewen Huang, Jian Kong, Dangsheng Xiong
Summary: In this study, Mo-alloyed HfN films were prepared and their tribological properties were studied. It was found that at elevated temperatures, the films exhibited high structural stability and lubrication, leading to lower coefficients of friction and better wear resistance.
JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME
(2021)
Article
Chemistry, Physical
Cheng-Hsun Hsu, Chun-Yin Lin, Wei-Shih You
Summary: Different austempering conditions were applied to 1 wt.% Cu-alloyed ductile iron to produce various ADIs in order to explore their microstructure, hardness, and wear behaviors. The results showed that the ADI obtained at 300 degrees C for 10 hours exhibited the best wear resistance performance, with denser needle-like ausferrite, lower retained austenite content, and higher carbon content in austenite compared to the ADI obtained at 360 degrees C.
Article
Materials Science, Multidisciplinary
Jyotsna Gupta, S. Ghosh, S. Aravindan
Summary: The research found that Ti6Al15Mo alloy has a lower elastic modulus value, while Ti6Al6Mo alloy exhibits the highest micro and nano hardness values. The hardness and wear resistance properties of Ti6Al15Mo alloy are superior to existing biomaterials like Ti6Al4V and CP Ti.
Article
Materials Science, Multidisciplinary
Hui Shao, Hui Zhang, Di Shan, Saifei Zhang, Kaixuan Wang, Feng Sun, Dan Fan, Le Wang, Longchao Zhuo, Juntao Zou
Summary: The influence of electropulsing treatment on black spots in Ti-5Al-5Mo-5V-1Cr-1Fe titanium alloy has been studied, showing that the recovery and recrystallization of black spots are accelerated by EHT. The micro-hardness of EHT sample is lower than CHT sample but increases with joule temperature.
MATERIALS CHARACTERIZATION
(2021)
Article
Materials Science, Multidisciplinary
Zhiying Zheng, Linjiang Chai, Zhihao Li, Weijiu Huang, Lin Tian, Yongfeng Wang, Liangliang Liu
Summary: The study compared the microstructure and hardness changes of metastable beta Ti alloy cooled at different rates. Results showed that the water-cooled and air-cooled specimens mainly consisted of recrystallized beta grains, while the furnace-cooled specimen contained coarse beta grains and alpha phase. Hardness testing revealed that the appearance of dense fine alpha precipitates during slow cooling can increase hardness.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Engineering, Chemical
Alena S. Gornakova, Anna Korneva, Alexander I. Tyurin, Natalia S. Afonikova, Askar R. Kilmametov, Boris B. Straumal
Summary: The paper investigates the impact of HPT on phase transformations and mechanical properties in Ti alloys with different Mo contents. The results show that HPT can significantly increase the hardness and nanohardness of the samples, and the values of hardness and Young's modulus depend on the applied load.
Article
Chemistry, Physical
Shichen Sun, Hongze Fang, Yili Li, Xiaofu Zhang, Ruirun Chen, Jingjie Guo
Summary: The formation mechanism and silicide effect on the microstructure and mechanical properties of Ti-5Al-5Mo-5Cr-3 Nb-2Zr-xSi alloys were investigated. The results showed that the microstructure of the alloys consisted of grain boundary alpha (alpha GB), secondary alpha (alpha s), primary alpha (alpha p), and residual beta phases when the Si content was less than 0.2 wt%. As the Si content increased from 0.4 to 0.8 wt%, the content and size of the TiSi phase precipitated in the alpha GB phase increased. The diffusion of Si atoms and the precipitation of silicides were influenced by the phase boundary and the energy at the interface. The mechanical properties, including elongation and fracture toughness, increased at 0-0.2 wt% Si and then decreased at 0.4-0.8 wt% Si, with the peak values observed at Ti-0.2Si (7.1% and 66.4 MPamiddotm1/2, respectively). The strength improvement was attributed to Si solid solution strengthening, precipitation of Ti5Si3 and TiSi phases, and the strengthening effect caused by the difference in crystal plane spacing between the TiSi and the alpha GB phases. Higher silicide content resulted in a gradual transition from intergranular ductile fracture to intergranular brittle fracture.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Coatings & Films
Abderrahmane Moussaoui, Abdelaziz Abboudi, Linda Aissani, Ahlam Belgroune, Abderahmane Cheriet, Akram Alhussein, Sami Rtimi
Summary: The influence of Mo content on the structural, tribo-logical, and mechanical properties of TiN films is investigated in this study. It is found that adding 18% Mo enhances the mechanical properties of TiMoN films, resulting in a high hardness of 28 GPa and lower friction coefficient compared to binary TiN films. The multi-phase strengthening and higher (H/E, H3/E2) values contribute to the improved mechanical properties and wear resistance of TiN films by alloying with Mo.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Engineering, Mechanical
Pushpinder Kumar, Ravinder Singh Joshi, Rohit Kumar Singla
Summary: A new single-stage process was investigated for fabricating Ti-6Al-4V alloy laminates for stacked composites, which showed improved wear resistance and increased hardness compared to the parental material Ti-6Al-4V.
Article
Materials Science, Coatings & Films
Tomas Hudec, Vitalii Izai, Leonid Satrapinskyy, Teodor Huminiuc, Tomas Roch, Maros Gregor, Branislav Grancic, Marian Mikula, Tomas Polcar
Summary: By preparing Mo-Se-N films in reactive atmospheres and controlling the nitrogen doping, films with excellent friction properties, increased hardness, and reduced wear rates can be obtained. Additionally, the use of modern technology allows for the production of films with a variety of elemental compositions and desired properties.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Shichen Sun, Hongze Fang, Yili Li, Ruirun Chen, Xiaofu Zhang, Yanqing Su, Jingjie Guo
Summary: Ti-5Al-5Mo-5Cr-3Nb-2Zr alloys with varying vanadium contents were studied to understand the recrystallization mechanism of a phase without deformation and control the phase ratio of beta/alpha. Increasing vanadium content resulted in decreased levels and aspect ratios of primary alpha (alpha(p)) and secondary alpha (alpha(s)) phases, and increased beta phase ratio from 7% to 88%. Furthermore, the recrystallization of ap and grain boundary alpha (alpha GB) phases increased, with a change in morphology from lath to equiaxed. The mechanism of static recrystallization involves V enrichment aggravating local lattice strain and causing migration of the a phase interface.
MATERIALS CHARACTERIZATION
(2023)
Article
Chemistry, Physical
Xuanming Ji, Panpan Ge, Song Xiang, Yuanbiao Tan
Summary: The effect of double-ageing heat treatments on microstructural evolution and mechanical behavior of a metastable beta-titanium alloy was investigated. It was found that pre-ageing temperature and time influenced phase transformation sequence and hardness, and the precipitation size of alpha phase was refined after double-ageing treatment.
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)