Article
Materials Science, Ceramics
Maria Carmen Vera, Julian Martinez-Fernandez, Mrityunjay Singh, Joaquin Ramirez-Rico
Summary: In this study, the high-temperature strength and thermal shock resistance of Si-Al-C-O and Si-Ti-C-O fiber-bonded SiC ceramics obtained from hot pressing of two types of ceramic fibers were investigated by mechanical testing. The bending strength of Si-Al-C-O-based fiber-bonded ceramics remains constant with temperature, while that of Si-Ti-C-O increases slightly at high temperature. Both materials show good thermal shock resistance with minimal reduction in elastic moduli after thermal shocks.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Jiale Qu, Chao Ning, Xiang Feng, Bonan Yao, Bo Liu, Ziheng Lu, Tianshuai Wang, Zhi Wei Seh, Siqi Shi, Qianfan Zhang
Summary: SiO-based materials have potential applications as alloys and conversion-type anode materials for lithium-ion batteries, as well as excellent dendrite-proof layers for lithium-metal batteries. Through first-principle calculations, three new thermodynamically stable phases (Li2SiO5, Li4SiO6, and Li4SiO8) were discovered, and it was found that Li2SiO5 and Li4SiO8 phases possess metallic properties with high electronic conductivity. The mechanical strength of Li-Si-O phases was also found to be higher than lithium metal, and the dominant diffusion mechanism in the Li-Si-O ternary systems is interstitial Li hopping.
ENERGY & ENVIRONMENTAL MATERIALS
(2022)
Article
Materials Science, Ceramics
M. Mohapatra, P. Vinothkumar, K. Sathyamoorthy, Priya Murugasen
Summary: By adjusting the Si/Li ratio, the photoluminescence intensity and decay time values of these ceramic compounds can be increased. Rare earth ions stabilize themselves at interstitial positions in the lattice with approximately C-2v symmetry. The four ceramic samples doped with Eu exhibit near red emission and good quantum efficiencies for phosphors.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Jun Ji, Zhenyu Zhang, Liu Zhang, Deli Ma, Baocai Pan, Qinggang Li, Mengyong Sun, Dechun Li, Guopu Shi, Zhi Wang
Summary: In this study, (Ti, Ta)(3)SiC2/Al2O3 composite ceramics were prepared by hot-pressing sintering using TaC as a tantalum source. The results showed that the grain size of Ti3SiC2 reduced significantly with the increase of TaC contents. The possible mechanism of this refinement phenomenon was revealed, providing theoretical guidance for surface modification and morphological transformation of Ti3SiC2-based ceramics.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Wu Qi, Bing Chen, Xiao Yang, Nian Liu, Zijian Jia, Wenrui Wang
Summary: This study systematically investigates the effects of four transition metal elements on the phase stability and properties of high-entropy diboride ceramics. The results show that the addition of Nb and Ti improves the mechanical properties of the ceramics, while the introduction of Cr and W weakens them. Furthermore, the high-entropy diboride ceramics containing Nb and Ti exhibit better high-temperature comprehensive performance.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Haojie Luo, Xiaomeng Fan, Jianyong Tu, Jiangyi He, Xin Li, Jimei Xue, Fang Ye, Laifei Cheng
Summary: In this study, Ti-Si-O films were prepared as the outer layer of multi-layer compatible stealth materials using magnetron co-sputtering and annealing methods. The films demonstrated low infrared emissivity and high microwave transmittance.
APPLIED SURFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Abdollah Bahador, Junko Umeda, Ridvan Yamanoglu, Tuty Asma Abu Bakar, Katsuyoshi Kondoh
Summary: Fully dense powder metallurgy (PM) Ti-4Fe-0.2O-3Cu-0.4Si alloy was produced using spark plasma sintering (SPS) and hot extrusion to develop an inexpensive high strength dual-phase Ti alloy. The addition of Si solute remarkably enhanced the microstructure stability and yield strength of the alloy at high temperature. The principal strengthening mechanisms were grain refinement and solid solution phenomena, leading to a comparatively higher tensile strength of the alloy compared to conventional Ti-6Al-4V alloy produced by a similar method.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Ceramics
Junwei Shi, Qiang Shen, Chuanbin Wang, Mingzhe Hu
Summary: This work focuses on the magnetic optimization of Ti-doped La2CoMnO6 (LCMO) double-perovskite ceramics at the Mn-site. Different Ti-doped LCMO ceramics (LCMTxO, x = 0.1-0.4) were prepared and their structural and magnetic properties were studied. The results showed that Ti-doping affects the proportion of Co2+ and Mn4+ in the ceramics, with the highest values achieved at x = 0.1. The addition of Ti also improves the magnetic properties by promoting the formation of a ferromagnetic state and increasing the magnetic moments of Co and Mn ions.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
K. Santhy, K. C. Hari Kumar
Summary: Phase diagram calculation of the Fe-Ti system was achieved by coupling CALPHAD with first principle methods, utilizing a single Gibbs energy model for FeTi and incorporating magnetic properties of the Laves phase. Two sublattice and three sublattice models were used to represent the Laves phase, with the latter showing better agreement with experimental data.
Article
Materials Science, Multidisciplinary
Miao Yu, Bo Peng, Kai Sun, Jiangang Yu, Lei Yuan, Jichao Hu, Yuming Zhang, Renxu Jia
Summary: Gallium oxide (Ga2O3), as a new-generation wide-bandgap semiconductor material, requires doping to control carriers and improve its optoelectronic properties. This study systematically compares the effects of silicon, germanium, and tin doping on the photoelectrical properties of Ga2O3. The results show that germanium doping has the least lattice distortion, highest mobility, highest conductivity, lowest capture rate of electrons, and relatively small absorption edge blue shift. Therefore, germanium doping is more suitable for the application of Ga2O3 in the photoelectrical field. This work provides guidance and theoretical support for future researchers in the selection of Ga2O3 dopants.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Ping-Xia Zhang, Li Ye, Feng-Hua Chen, Wei-Jian Han, Yu-Huan Wu, Tong Zhao
Summary: In this study, the stability, mixing behavior, mechanical, and temperature-dependent properties of multicomponent high entropy carbide ceramics (HECCs) were systematically investigated. It was found that one of the HECC materials exhibited better performance at different temperatures, providing instructive information for predicting and designing high-performance ultra-high temperature ceramic materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Bowei Yuan, Shi-Ya Tang, Shaodong Zhou
Summary: The size and doping effects in methane activation by Ti-Si-O clusters were investigated using gas-phase experiments and quantum chemical calculations. It was found that Ti-Si-O clusters with a low Ti : Si ratio are beneficial for methane adsorption and hydrogen atom transfer, while clusters with a high Ti : Si ratio favor the generation of oxygen radicals. The study also recommended a cluster size of m+n=12 for improving the reaction efficiency.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Haoyue Wu, Yangping Dong, Xuewen Li, Yulong Li, Ming Yan
Summary: By conducting first principle calculations and SLM experiments, it has been confirmed that using TiB as a reinforcement material to prepare titanium matrix composite materials is feasible. TiB has superior mechanical properties compared to Ti, and the composite materials produced by SLM have shown ideal strengthening effects.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Chemistry, Physical
Zhenhua Chen, Zhangyong Chang, Zhiqiang Liu, Naigen Zhou
Summary: This study compares the performance of different functionalized MXenes as anchoring materials using first-principles calculations. The results show that sulfur and selenium functionalized MXenes have moderate interaction with lithium polysulfides, making them suitable as cathode additives.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Lin Shao, Min Yang, Li Ma, Bi-Yu Tang
Summary: The study investigated the finite temperature elastic properties of non-equiatomic refractory high-entropy alloys and emphasized the effect of Ta and Ti addition. The addition of Ta and Ti can improve ductility while affecting strength and hardness differently. By tuning the Ti/Ta ratio, a proper trade-off between strength and ductility can be achieved for the high temperature mechanical properties of the alloy.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2021)
Article
Materials Science, Ceramics
Leilei Li, Jing Wang, Qilong Guo, Yongheng Yang, Zongmo Shi, Jie Xu, Wanzhi Cao, Feng Gao
Summary: Two-dimensional platelets of perovskite-structured PbTiO3 were synthesized using a topochemical microcrystal route with a layer-structured PbBi4-Ti4O15 precursor. The precursor had a high aspect ratio with an average size of 7.74 μm and thickness of 0.29 nm. The obtained PbTiO3 platelets coexisted with Pb4Bi4-Ti7O24 mesophase, which had a more stable Aurivillius structure and was difficult to fully convert into the perovskite structure during topochemical microcrystal conversion. The reason for the coexistence of Pb4Bi4-Ti7O24 mesophase in PbTiO3 platelets was discussed.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Qian Chen, Ping Zhang, Zhihao Lou, Lingyun Gong, Shuyao Cao, Jie Xu, Jie Kong, Zinovi Dashevsky, Haixue Yan, Feng Gao
Summary: The electron and phonon thermal transport behavior of Ag+ doped KSr2Nb5O15 were studied, and it was found that Ag+ doping effectively increased the carrier concentration and electrical conductivity, reduced the thermal conductivity, and improved the thermoelectric performance. Experimental and calculated results showed that Ag improved the thermoelectric properties of KSr2Nb5O15. The addition of 20 wt% nanosized Ag resulted in the highest power factor and ZT at 1073 K.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Mingyue Wei, Jie Xu, Jiatong Zhu, Runwu Yang, Xuanyu Meng, Ping Zhang, Jinlong Yang, Feng Gao
Summary: Inspired by entropy stabilization, a series of rare-earth-zirconate medium-entropy ceramics were designed and their mechanical and thermophysical properties were investigated. The results show that these ceramics have good mechanical properties and low thermal conductivity, making them suitable for thermal insulation applications.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Shaobo Zhang, Xueju Xu, Zi Ye, Yaxi Liu, Qingjun Wang, Qi Chen, Yongze Jiang, Jinqiu Qi, Dong Tian, Jie Xu, Fengkai Wu, Xuanjun Feng, Yanli Lu
Summary: The SNC-AgNPs exhibited high antibacterial activity and excellent catalytic properties, with a high preparation efficiency and thermal stability.
APPLIED SURFACE SCIENCE
(2023)
Article
Biophysics
Xin Li, Jingying Pan, Yue Wu, Huan Xing, Zijian An, Zhenghan Shi, Jingjiang Lv, Fenni Zhang, Jing Jiang, Di Wang, Ray P. S. Han, Bin Su, Yanli Lu, Qingjun Liu
Summary: A wireless facemask based on Ti3C2Tx MXene is developed for the noninvasive monitoring of breath acetone (BrAC) and real-time tracking of lipid metabolism. The facemask can not only detect acetone but also filter out breath interference. It is integrated with a miniaturized flexible detection tag for easy BrAC detection and wireless data transmission. The system enables detection of BrAC down to 0.31 ppm in breath.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Dentistry, Oral Surgery & Medicine
Xiaojun Yang, Chaoning Zhan, Tianjiao Cheng, Minchun Huang, Weiwen Ge, Yiqing Zhang, Ting Chen, Yanli Lu, Zhong-Kai Cui, Jin Hou
Summary: The transdentinal potential and antibacterial activity of nanoscale CPC/Chol sterosomes were evaluated in this study. The sterosomes successfully penetrated through dentinal tubules and diffused into the pulp with high efficiency, exhibiting substantial intrinsic antibacterial activity against endodontic bacteria and biofilms. These findings suggest that sterosome-based nanocarriers hold promise as a therapeutic strategy for targeting specific pathways associated with pulpal diseases.
INTERNATIONAL ENDODONTIC JOURNAL
(2023)
Article
Endocrinology & Metabolism
Yanli Lu, Wanwan Yuan, Xiaowei Xiong, Qianqian Huang, Sheng Chen, Tingting Yin, Yanan Zhang, Zhie Wang, Guohua Zeng, Qiren Huang
Summary: The study aimed to investigate the contribution of asprosin (ASP), a fasting-induced hormone involved in metabolic disorders, to vascular endothelial dysfunction in obesity models. The results showed that ASP aggravated the endothelial dysfunction induced by either palmitic acid in vitro or a high-fat diet (HFD) in vivo. Mechanistically, ASP enhanced mitochondrial fission, and inhibition of the fission through knockdown of dynamin-related protein 1 rescued the endothelial dysfunction and the disturbance to mitochondrial dynamics induced by ASP. These findings suggest that ASP can act as an early predictive marker of blood vessel dysfunction and become a novel potential therapeutic target for obesity-related cardiovascular diseases.
Article
Neurosciences
Zhisen Li, Xiaoxia Hou, Yanli Lu, Huimin Zhao, Meixia Wang, Bo Xu, Qianru Shi, Qian Gui, Guanhui Wu, Mingqiang Shen, Wei Zhu, Qinrong Xu, Xiaofeng Dong, Qingzhang Cheng, Jibin Zhang, Hongxuan Feng
Summary: This study aimed to investigate the changes of brain network in epilepsy patients without intracranial lesions under resting conditions. The topological characteristics and functional connectivity of brain networks in non-lesional epilepsy patients were found to be altered. Abnormal functional connectivity may indicate reduced brain efficiency in epilepsy patients and could be a compensatory response to early stages of the disease.
FRONTIERS IN NEUROSCIENCE
(2023)
Article
Crystallography
Lingyun Gong, Ping Zhang, Zhihao Lou, Ziyao Wei, Zhuozhao Wu, Jie Xu, Xuanjie Chen, Weihang Xu, Yiqi Wang, Feng Gao
Summary: The electronic structure and thermoelectric properties of Bi3+-doped (Sr0.889-xLa0.111Bix)TiO2.963 were investigated using the first principles method. Doping Bi3+ can increase the cell parameters, cell asymmetry, and band gap. Increase in Bi3+ content leads to enhanced asymmetry of DOS relative to the Fermi level, which results in an increased Seebeck coefficient, carrier mobility, and decreased carrier concentration. An appropriate Bi3+ doping concentration (7.4-14.8%) can enhance lattice distortion and reduce lattice thermal conductivity of the material. An optimum Bi3+ doping concentration (7.4%) can effectively optimize the electrical transport performance and improve the thermoelectric properties of strontium titanate. The optimal Bi3+ doping concentration is 7.4%, and Sr0.815La0.111Bi0.074TiO2.963 achieves a maximum ZT of 0.48. This work elucidates the mechanism of Bi3+ doping in enhancing the thermoelectric properties of strontium titanate.
Article
Materials Science, Ceramics
Shuyao Cao, Qirui Zou, Qingqing Wang, Weiguo Wang, Lei Chen, Ting Liu, Jie Xu, Qiwei Zhang, Feng Gao
Summary: The influences of Nb2O5 composite concentration on the microstructures and the photochromic and luminescence modulation properties were systematically investigated in this study. It was found that over-concentration caused the aggregation of the second phase, leading to competitive mechanism and deterioration of the material's properties. Moreover, a textured composite ceramic was prepared using a template grain growth method to enhance the anti-counterfeiting ability and atomic-scale explanation of the anisotropies of the defect distribution was provided.
CERAMICS INTERNATIONAL
(2023)
Review
Energy & Fuels
Ping Zhang, Zhihao Lou, Lingyun Gong, Zhuozhao Wu, Xuanjie Chen, Weihang Xu, Yiqi Wang, Jie Xu, Zinovi Dashevsky, Feng Gao
Summary: This study aims to provide a comprehensive summary of the diversified state-of-the-art oxide ceramics and establish the links between composition designing, preparation process, structural characteristics, and properties to understand the underlying chemistry and physics mechanism. It also reviews advanced device design and applications such as thermoelectric modules, miniature generators, sensors, and coolers. Finally, the challenges and future perspective of oxide ceramics for energy harvesting technology are discussed.
Article
Chemistry, Analytical
Zhenghan Shi, Chaobo Dai, Peixue Deng, Xin Li, Yue Wu, Jingjiang Lv, Chuhan Xiong, Yifan Shuai, Fenni Zhang, Di Wang, Hao Liang, Yan He, Qingmei Chen, Yanli Lu, Qingjun Liu
Summary: This article introduces a wireless and wearable smart bandage for the detection of bacterial virulence factors. The system utilizes electrochemical differential pulse voltammetry to detect biomarkers corresponding to Gram-positive Staphylococcus aureus and Gram-negative Pseudomonas aeruginosa infections. The integrated system demonstrates good linearity and high sensitivity, with wide detection ranges for sortase A and pyocyanin.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Multidisciplinary
Xin Li, Rujing Sun, Jingying Pan, Zhenghan Shi, Jingjiang Lv, Zijian An, Yan He, Qingmei Chen, Ray P. S. Han, Fenni Zhang, Yanli Lu, Hao Liang, Qingjun Liu
Summary: Printed MXene flexible radio frequency (RF) resonators are introduced as plant wearable sensors for wireless ethylene detection, enabling real-time monitoring of plant hormone for precision agriculture. The additive-free MXene ink allows rapid and scalable manufacturing of printed electronics with decent printing resolution, high conductivity, and mechanical robustness. Incorporation of MXene-reduced palladium nanoparticles (MXene@PdNPs) enhances the ethylene response and provides a low limit of detection for accurate measurement of plant ethylene emission.
Article
Materials Science, Multidisciplinary
Jinhan Xu, Yanli Lu, Wei Wu, Chan Wu, Jialiang Jiang
Summary: This study comprehensively analyzed the effect of functional alloying elements and impurity elements on the mechanical performance of Pd-X alloys through the first-principle method. The variation of elastic and ductile properties via alloying elements has been obtained. The crystal chemical analysis and electronic structure analysis provided insights into the stability of O occupying tetrahedral site and the decrease of charge density on the slip surface, respectively.
Article
Chemistry, Multidisciplinary
Hao Dong, Xubin Zheng, Chen Cheng, Libin Qian, Yaoxuan Cui, Weiwei Wu, Qingjun Liu, Xing Chen, Yanli Lu, Qing Yang, Fenni Zhang, Di Wang
Summary: By leveraging dual-focus imaging, a complementary metal-oxide-semiconductor (CMOS) imager is transformed into a compact multimodal sensing platform capable of detecting visual information, chemicals, temperature, and humidity, and outputting them as a single image. It has been applied to micro-vehicles for multimodal environmental sensing and mapping, as well as to a multimodal endoscope for simultaneous imaging and chemical profiling along a porcine digestive tract. This multimodal CMOS imager is compact, versatile, and extensible, making it suitable for applications in microrobots, in vivo medical apparatuses, and other microdevices.
Article
Physics, Condensed Matter
Shivani Gohri, Jaya Madan, Rahul Pandey
Summary: This study improves the efficiency of SnS-based solar cells by implementing the glancing angle deposition approach and introducing a CZTSSe layer. The findings offer valuable insights for enhancing the design of SnS-based solar cells and making them more efficient.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Mahboubeh Yeganeh, Davoud Vahedi Fakhrabad
Summary: The lattice thermal conductivity of CdO monolayer was investigated, and it was found to be lower than that of bulk CdO due to the lower phonon lifetime and phonon group velocity. As a result, the monolayer exhibits higher thermoelectric efficiency compared to the bulk counterpart.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Shivam Srivastava, Prachi Singh, Anjani K. Pandey, Chandra K. Dixit
Summary: In this research paper, a novel equation of state (EOS) based on finite strain theories is proposed for predicting the thermo elastic properties of various materials. Extensive analysis and comparison with existing models and experimental data demonstrate the validity and effectiveness of the proposed EOS in capturing the unique thermodynamic behavior of nanomaterials, bulk metallic glasses, and superconductors. This research is of great importance in the fields of materials science, nanotechnology, and condensed matter physics.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Subrata Das, Sanjoy Kr Mahatha, Konstantin Glazyrin, R. Ganesan, Suja Elizabeth, Tirthankar Chakraborty
Summary: In this study, we investigated the structural evolution of Tb2Ti2O7 under external pressure and temperature, and confirmed the occurrence of an isostructural phase transition beyond 10 GPa pressure. This transition leads to changes in lattice parameters and mechanical properties, which can be understood in terms of localized rearrangement of atoms.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Hamze Mousavi
Summary: It has been found that undoped graphene sheet has zero states at the Fermi energy level, making it difficult for Cooper pairing to occur in the superconductive state. However, T-graphene, with physical properties similar to graphene, exhibits metallic behavior and has available electron states near the Fermi level. The gap equation for the s-wave superconductive state is derived based on the attractive Hubbard model and the Bogoliubov de Gennes equation for this two-dimensional metallic system. It is found that a nonzero critical temperature, τ, exists for different levels of electron-electron interaction, ǫ. τ has higher values when the system has electronic half band-filling, but decreases when the system does not have half band-filling. However, τ vanishes when ǫ becomes small enough near the band edges.
SOLID STATE COMMUNICATIONS
(2024)
