Article
Polymer Science
Xingyu Liang, Yan Yao, Xiao Xiao, Xiaorong Liu, Xinzhou Wang, Yanjun Li
Summary: In this paper, the effects of pressure-steam heat treatment on the micro-structure, physical properties, and mechanical properties of bamboo were investigated. The results showed that saturated-steam heat treatment can enhance the anti-mildew property and mechanical properties of bamboo.
Article
Forestry
Tiancheng Yuan, Zhaoshun Wang, Xin Han, ZhuRun Yuan, XinZhou Wang, Yanjun Li
Summary: This study evaluated the changes in chemical composition and micro-mechanical properties of Moso Bamboo fiber cells after saturated steam heat treatment. The results showed that the treatment affected the chemical composition and microstructure of the bamboo, particularly leading to an increase in cell wall elastic modulus and hardness, and a decrease in the creep ratio.
Article
Engineering, Chemical
Yan Chen, Jiangyu Fang, Tian Ling, Mengsheng Xia, Pengtao Xu, Yan Cao, Dongze Wei, Junkai Gao
Summary: Interfacial solar evaporation (ISE) is a promising strategy for seawater desalination and sewage purification, but its low efficiency and poor stability have limited its practical application. In this study, researchers developed a facile method to prepare a bamboo shoot solar evaporator (AC-BS) with high evaporation efficiency and bactericidal performance. The AC-BS demonstrated excellent mildew resistance and purification effect, indicating its high applicability and durability in practice.
Article
Materials Science, Ceramics
Miguel Fernandez-Ramos, Josefa Isasi, Mauricio Alcolea, Tamara Munoz-Ortiz, Elisa Ortiz-Rivero
Summary: This paper describes the preparation and study of new bifunctional samples (Y(0.9)Ln(0.1)VO(4)/Fe3O4)@SiO2 and [(Y(0.9)Ln(0.1)VO(4)@SiO2)/ Fe3O4@SiO2] with Ln = Nd or Tb. The influence of Fe3O4 content and silica coating on the Y(0.9)Ln(0.1)VO(4)@SiO2 samples is analyzed, and their potential utility is determined. These samples, which have potential applications in biomedicine, can be directed using an external magnetic field and allow the visualization of diseased cells. The experimental and theoretical studies provide insights into the structural and vibrational properties of the samples, confirming the presence of silica coating. The [(Y(0.9)Ln(0.1)VO(4)@SiO2)/Fe3O4@SiO2] samples show the most suitable properties for use as bifunctional materials.
CERAMICS INTERNATIONAL
(2022)
Article
Green & Sustainable Science & Technology
Xin Han, Zhichao Lou, Chenglong Yuan, Xinwu Wu, Jie Liu, Fujin Weng, Yanjun Li
Summary: This paper investigates the effects and mechanism of two-step saturated steam heat treatment on the physical and mechanical properties of reconstituted bamboo. The results show that two-step treatment is superior to one-step treatment. It is found that the addition of oxygen between the two treatment processes can promote the oxidation of hemicellulose and enhance the crystallinity of cellulose, thereby improving the properties of the final products.
JOURNAL OF RENEWABLE MATERIALS
(2022)
Article
Polymer Science
Li Qin, Jinguang Wei, Minzhen Bao, Yanglun Yu, Wenji Yu
Summary: By using superheated steam treatment, the durability of bamboo scrimbers has been improved. The effects of different temperatures on the chemical composition, mechanical properties, dimensional stability, aging resistance, decay resistance and anti-mildew properties of bamboo scrimbers were investigated. The results showed that superheated steam treatment significantly improved the resistance of bamboo scrimbers to water, ultraviolet radiation, rot fungi and mildew.
Article
Forestry
Shengfeng Mao, Zhuchao Xu, Qiuyi Wang, Xin Han, Xinzhou Wang, Meiling Chen, Yanjun Li
Summary: With the scarcity of wood resources and calls for substitution, bamboo is gaining popularity for its abundant reserves and outstanding mechanical properties. However, mildew is a common problem that affects the quality and service lives of bamboo products. In this study, gamma-ray irradiation was used to modify bamboo, resulting in improved mechanical properties and excellent mildew resistance.
Article
Thermodynamics
Caio C. dos Santos, W. R. Viali, E. S. N. Viali, R. F. C. Marques, M. Jafelicci Junior
Summary: The study reported the synthesis of a new nanofluid based on magnetic nanoparticles with high colloidal stability. The functionalization of the nanoparticles on the surface increased the colloidal stability of the nanofluid. Characterization techniques confirmed the structural and stability properties of the nanoparticles.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Thermodynamics
Marco Tancon, Antonio Abbatecola, Matteo Mirafiori, Stefano Bortolin, Elena Colusso, Alessandro Martucci, Davide Del Col
Summary: This paper experimentally studies the dropwise condensation (DWC) of flowing steam on sol-gel silica-based coated aluminium substrates at various inclinations. The heat transfer coefficient (HTC) and droplet population measurements are conducted under different heat flux and vapor velocity conditions. It is observed that as the surface inclination decreases from vertical to horizontal, the average droplet size increases and there is a significant reduction in HTC, particularly at low vapor velocities. The HTC increases with steam velocity due to the vapor drag force, and at the highest mass velocity, the HTC becomes independent of surface inclination. A model for the droplet departing radius is modified to account for the effect of surface inclination, and it provides satisfactory predictions of HTC for different vapor velocities, heat flux, and surface inclinations. It is proposed to couple this new equation with existing models for heat transfer through a single droplet and drop-size distribution to predict the heat flux during DWC.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2024)
Article
Nanoscience & Nanotechnology
Tiancheng Yuan, Jie Liu, Shouheng Hu, Xinzhou Wang, Xianmiao Liu, Yanjun Li
Summary: The study showed that saturated steam treatment could affect the chemical composition, mechanical properties, crystallinity, and color of bamboo. With increasing temperature and time, the mechanical properties of bamboo gradually decreased.
Article
Engineering, Multidisciplinary
Zhichao Lou, Xin Han, Jie Liu, Qianli Ma, Han Yan, Chenglong Yuan, Lintian Yang, He Han, Fujin Weng, Yanjun Li
Summary: This research successfully fabricated nano-Fe3O4/bamboo bundles/phenolic resin oriented recombination ternary composite boards, named T1, T2, and T3, with enhanced hydrophobicity and physico-mechanical properties. Among them, T2 showed the best compressive properties, dimensional stability, and mildew resistance due to the role of nano-Fe3O4 in enhancing the interactions between bamboo bundles and phenolic resin.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Chemistry, Physical
Yaghoub Mohammadfam, Saeed Zeinali Heris
Summary: This study investigates the impact of single, hybrid, and doped magnetic nanoparticles on the convective heat transfer capabilities of a water/ethylene glycol-based nanofluid under the influence of a magnetic field. The results show that the application of Fe3O4 and Fe3O4@MWCNT nanoparticles can increase the heat transfer capabilities of the nanofluid, while the application of MWCNT-Fe3O4 nanoparticles decreases the heat transfer capabilities. The performance index evaluation indicates that the use of nanofluids is effective, as all samples have a performance index greater than one.
SURFACES AND INTERFACES
(2023)
Article
Agricultural Engineering
Ying Zhang, Mingyang Bai, Ao Zhang, Xin Zhang, Youming Dong, Haijiao Kang, Qiuhui Zhang, Jianzhang Li
Summary: In this study, natural polyphenol-tannic acid and boric acid were used to create gel-like networks within bamboo, enhancing its durability and mold resistance. The modified bamboo exhibited good bending strength, flame-retardant properties, and long-term anti-mold effects even under high moisture conditions. This research shows great potential for the large-scale production of mold-resistant bamboo.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Engineering, Electrical & Electronic
Gulshan Dhillon, Naveen Kumar, Mansi Chitkara, Inderjeet Singh Sandhu
Summary: The study investigated the physicochemical characteristics of Gd3+ modified Fe3O4 nanoparticles synthesized via the sol-gel combustion method, including structural, microstructural, optical, electrical, and magnetic characteristics. The results showed that an increase in Gd3+ content led to an increase in average crystallite size, while the spectra at Fe-O stretching confirmed the formation of ferrite nanoparticles.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Thermodynamics
Jianfeng Lu, Zheng Liu, Yukun Zou, Jing Ding
Summary: This study examined the thermal performance of a molten salt steam generator-superheater with saturated water. Experimental results showed that the evaporator had significantly higher heat flow and thermal efficiency than the superheater, with the evaporator dominating heat transfer performance of the system. Adjusting the inlet water flow rate is recommended to achieve suitable superheat and enhance heat flow and thermal efficiency.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Materials Science, Multidisciplinary
Ananta Dutta, Surjya K. Pal, Sushanta K. Panda
Summary: In the realm of micro-Friction Stir Welding (FSW), this study investigates the influence of pinless and pin tool on hook formation, temperature evolution, and bonding mechanisms. The study reveals that pin tool improves joint strength and reduces axial force during traversing. Pin tool also exhibits a higher proportion of recrystallized grains compared to pinless tool, resulting in better weld quality.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Abdelmalek Habes, Mehdi Derradji, Oussama Mehelli, Fouad Benaliouche, Slimane Abdous, Youcef Medjaouri, Nour Chirine Abderrahim, Hakima Fodil, Mohamed El Amine Kadi
Summary: In recent years, there has been significant progress in advancing nanomaterials with exceptional properties for electromagnetic (EM) wave absorption. This study investigates the application of a novel thermosetting phenolic resin as a polymeric matrix for EM shielding, highlighting the enhancement of stability with the incorporation of zinc oxide nanoparticles.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Xiaoxing Zhang, Yongchao Luo, Kai Xu, Weihao Liu, Shuangshuang Tian, Benli Liu, Jiahao Wang, Feng Hu
Summary: This study calculates and analyzes the adsorption performance and sensing characteristics of Cu-MoTe2 for SF6 decomposition components. The results show that Cu-MoTe2 chemisorbs SO2 and H2S, while physisorbs SOF2. Cu-MoTe2 has the potential to be used as a chemical sensor material.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Xin Qu, Xinyu Sang, Yarong Lv, Ce Wang, Ping Hu, Quanyi Guo, Yong Liu
Summary: In this study, a PLLA-COI multilayer nanofiber membrane was prepared to prevent peritendinous adhesion, and it was found to have good cell compatibility and anti-adhesion effect, effectively promoting the recovery of Achilles tendon injury.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Ching-Yuan Ho, Chen-Yi Su, Wei-Zhe Hu
Summary: An equivalent electrical circuit (EEC) is established to understand the droplet-base electricity generation (DEG) mechanism, using voltage-time curve decomposition. The concept of Debye length is introduced to explain charge density at the interface between the ionic droplet and the PTFE surface. This study provides valuable insights into the exponential decay of output voltage and the improvement of solar panel performance in alternating rainy and dry weather through correct circuit design.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Iori Ono, Takeo Oku, Atsushi Suzuki, Sakiko Fukunishi, Tomoharu Tachikawa, Tomoya Hasegawa
Summary: The effects of adding rubidium (Rb) and ethylammonium (CH3CH2NH3, EA) to guanidinium [C(NH2)3, GA] based CH3NH3PbI3 perovskite solar cells were investigated. The lattice constants and (100)-orientation of EA and Rb-modified perovskite crystals increased compared to the as-prepared perovskite. The addition of GA and EA effectively improved the photovoltaic properties of the device under indoor light conditions.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Xuewu Li, Hongxing Wang, Zhiguo Xing, Yanfei Huang, Weiling Guo, Haidou Wang, Yanfang Zhang, Longlong Zhou
Summary: This study prepared a novel composite antireflective structure with slotted holes using FDTD simulation combined with femtosecond laser design to further improve the infrared anti-reflective performance. The results show that the antireflection performance of the simulated groove-hole composite structure is better than that of the individual groove and hole structures, and the nanoparticle structures can further improve the antireflection performance in the infrared region.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Sepideh Soltani, Hajar Ghanbari, S. Mohammad Mirkazemi
Summary: In this study, h-BN and r-BN structures were synthesized through controlled nitridation. The h-BN exhibited sheet-like morphology, while the r-BN formed needle-like hollow structures.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Wanying Zhang, Xiaoyuan Wang, Yibo Ai, Weidong Zhang
Summary: This study investigates the impact of oxygen corrosion on the mechanical properties of uranium and uranium alloys and develops a feature-guided decision tree algorithm for prediction. The research highlights crucial correlations discovered through feature engineering, improving the performance of machine learning models. The mechanical properties of uranium and uranium alloys after oxygen corrosion are successfully predicted with a prediction error of less than 5%.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Qiong Cheng, Yao Zhao, Juntao Zhuang, Ahmad M. Alshamrani
Summary: This study presents a model to simulate the transient dynamics of a car's hood door during an accident, with reinforced structure in the axial direction using graphene nanoplatelets. The results are verified through comparison with open-source results and deep neural networks. The study highlights the importance of graphene nanoplatelets in the composite system's transient and forced vibrations, and provides valuable suggestions for future structural designs.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Rostyslav Nizinkovskyi, Thorsten Halle, Manja Krueger
Summary: Cu-precipitation in reactor pressure vessel steels is a major concern for the degradation of mechanical properties. This study develops and implements a non-local phase-field model to investigate the equilibrium morphology of precipitates in the over-aged state. The model confirms that the precipitates should have an oblate lath-like shape, which is supported by experimental data. The orientation of the precipitates is consistent with literature. The mechanism of morphology accommodation is explained using the invariant-line method. However, the equilibrium values of elongation significantly deviate from experimental data, likely due to the metastable state of the precipitates during the coarsening process.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Xiaowei Li, Yafei Liu, Shiyu Luan, Deqing Ma, Xiaoyu Liu, Qiangbing Liu, Jinhui Wang
Summary: In this study, the hot deformation behavior of as-cast Mg-2Ho binary alloy under different strain rates and deformation temperatures was systematically studied. The microstructure and dynamic recrystallization mechanisms were analyzed using SEM and EBSD techniques. A strain-compensated Arrhenius constitutive equation and a PSO-BP ANN model based on machine learning were established to analyze the flow behavior. The experimental results showed that the flow stress decreased with increasing temperature and decreasing strain rate. The PSO-BP ANN model demonstrated good accuracy in predicting flow stress.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Jiaxin Liu, Guangkai Liao, Zhenyan Xie, Bowen Li, Lingna Cui, Yuejun Liu
Summary: This study investigated the rheological behavior of polyamide 6 (PA6) film during biaxial stretching and found that the elastic-plastic deformation during stretching affected the stress rebound or relaxation during heat setting. The relaxation spectrum and activation energy spectrum were calculated, revealing the process of stress relaxation as energy release and stress rebound as energy absorption. The results provide theoretical guidance for understanding the biaxial stretching deformation mechanism of polymer films.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Monisha Manathanath, Benu George, Juraij Kandiyil, Subramaniam Sujatha, Suchithra Tharamel Vasu, Sujith Athiyanathil, Unnikrishnan Gopalakrishna Panicker
Summary: This study explores a method that combines a biodegradable polymer scaffold with a photosensitizer for antibacterial photodynamic therapy. The results show a high inhibition rate against E. coli and S. aureus using this method.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Mohammad Hemmat Esfe, S. Ali Eftekhari, S. Mohammad Sajadi, Mohammad Hashemian, Soheil Salahshour, Seyed Majid Motallebi
Summary: In this study, an artificial neural network was used to predict the dynamic viscosity of MWCNT-ZnO (25:75)/SAE 10W40 oil nano-lubricant. The temperature, shear rate, and solid volume fraction were found to have significant effects on the dynamic viscosity, with shear rate being the most influential parameter.
MATERIALS TODAY COMMUNICATIONS
(2024)