Article
Nanoscience & Nanotechnology
Doyun Kim, Eugenia S. Vasileiadou, Ioannis Spanopoulos, Mercouri G. Kanatzidis, Qing Tu
Summary: In this study, the in-plane Young's moduli E-parallel to of 2D lead halide Ruddlesden-Popper HOIPs were systematically investigated. It was found that E-parallel to generally follows the trend of Pb-X bond strength, showing more prominent effects of the metal halide inorganic framework on E-parallel to than E-perpendicular to. The mechanical anisotropy of 2D HOIPs can be tuned based on structural composition, particularly for iodide-based 2D HOIPs, providing valuable insights for materials design and device optimization.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Polymer Science
Abir Ben Abdallah, Achraf Kallel, Tarek Hassine, Fehmi Gamaoun, Abbas Tcharkhtchi
Summary: The study successfully described the viscoelastic behavior of shape memory polymer blends using a bi-parabolic model, showing that the model accurately predicts the behavior of SMP mixtures with different PCL M-w, and the rigidity of the blends increases with the decline of PCL M-w.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Juanli Zhao, Peiying Wang, Yuchen Liu, Bin Liu, Haixuan Xu
Summary: This study systematically investigated the electronic structures, mechanical and optical properties of the organo-inorganic hybrid perovskite CH3NH3PbI3 in different crystal structures. The results indicate significant effects of crystal structure and CH3NH3 molecular orientation on the material properties.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Polymer Science
Jamal Khezri, Samrand Rash-Ahmadi, Javad Alizadeh Kaklar
Summary: This study investigates the fracture toughness and fatigue behavior of thermoset resins containing spherical fillers using a fully analytical multiscale hierarchical modeling method. The findings suggest that fracture toughness and fatigue behavior are significantly influenced by interphase elastic properties and thickness. The research also validates the accuracy of the multiscale approach by comparing modeling results with experimental tests.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Review
Engineering, Biomedical
Yu Zhao, Zhi Shou Zhu, Juan Guan, Su Jun Wu
Summary: Hydrogels are versatile materials in biomedical engineering with applications similar to wet tissues. Silk fibroin (SF) is a natural polymer with biocompatibility and tunable biodegradation, but its poor mechanical performance hinders its structural applications. Researchers are exploring strategies to enhance the strength of SF-based hydrogels for biomedical uses.
ACTA BIOMATERIALIA
(2021)
Article
Polymer Science
Shiwei Feng, Zhiguo Jiang, Zhaobin Qiu
Summary: Three fully biobased PHFSe copolyesters with different HSe unit contents (10 mol%, 20 mol%, and 30 mol%) were synthesized successfully. The PHFSe copolyesters showed high thermal stability and their thermal and mechanical properties could be easily tuned by changing the HSe unit content.
Article
Chemistry, Physical
Hong Wang, Bing Wang, Zhanqiang Liu, Jinfu Zhao, Haiming Zhang
Summary: This paper investigates the effect of dealloying treatment on the microstructures and mechanical properties of NiTi alloy. The results show that dealloying treatment significantly reduces the elastic modulus and nanohardness of the nanoporous layer, weakens the super-elastic property of the NiTi alloy, and reduces scratching force. The study also reveals the plasticity degradation of the dealloyed surface.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Mechanics
Tengteng Zheng, Shuai Li, Gang Wang, Yingcheng Hu, Caiqi Zhao
Summary: The study found that the compression and short beam shear failure modes of the composite XX-type lattice sandwich structure were mainly the shear failure of the core and the failure of panels, with the sandwich structure having a core diameter of 8 mm exhibiting good compression properties. The XX (II) lattice sandwich structure combining Plywood + birch showed better compression, short beam shear, and energy absorption properties. The combination of MDF + birch was found to be more suitable for the compressive theoretical model.
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2022)
Article
Construction & Building Technology
Haoran Du, Yidan Shen, Wenjiao Zhang, Xiangqing Kong, Ying Fu
Summary: A fabrication method for self-cleaning concrete with green environmental protection and stable mechanical properties was proposed in this paper. The hierarchical micro-nano composite structure was obtained by directly copying the structure from modified copper mesh to the surface of the concrete and using octadecylamine-grafted humic acid to obtain low surface energy. The fabricated concrete showed high water contact angle, low water sliding angle, good mechanical stability, and self-cleaning performance.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Jianzhao Wu, Chaoyong Zhang, Kunlei Lian, Huajun Cao, Congbo Li
Summary: This study analyzes the carbon emission characteristics and proportions of laser, arc, and laser-arc hybrid welding methods. The experimental results show that appropriate welding heat inputs can reduce carbon emissions while maintaining desired tensile properties.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Materials Science, Multidisciplinary
Weipei Xue, Hanwen Zhang, Haopeng Li, Wei Xu
Summary: The study found that early loading leads to severe damage to the concrete structure and significant increase in internal pores, resulting in deteriorated mechanical and permeability properties. The earlier the loading, the greater the deterioration. In contrast, loading at a low level has a minor impact on the internal structure of concrete.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Polymer Science
Geoffrey Ginoux, Isabelle Vroman, Sebastien Alix
Summary: This study assessed and optimized the impact of printing speed and extrusion temperature on the tensile properties of a polylactide/layered silicate nanocomposite in a fused filament fabrication process. Mathematical models were used to examine factor and interaction effects, corroborated by measurements and analyses to provide physical explanations for the differences in tensile properties. Insights into FFF process optimization were provided, highlighting new modes of deposition defects that affect composite properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Chao Gu, Ziyu Lyu, Qin Hu, Yanping Bao
Summary: In this study, the structural and mechanical properties of Ca-SiO2 compounds in liquid steels were investigated using first-principles density functional theory. Eight different phases were identified and their stability and properties were determined. The results provide valuable insights into the Ca-SiO2 compound particles in steels and contribute to the development of a corresponding property database.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Tong Chen, Shinji Koyama, Shinichi Nishida, Lihua Yu
Summary: The surface processing of pure titanium using a carbon sheet improved surface hardness and tribological property. The study found that the hardened layer mainly consisted of titanium oxide and titanium carbide, with thickness and hardness initially increasing and then decreasing with processing temperature. A temperature of 850 degrees C was optimal for reduced friction during practical use.
Article
Materials Science, Composites
Tiwen Xu, Yuanni Xin, Yueqiong Wang, Lusheng Liao, Haifeng Li, Jianfeng Ban, Ying Yang
Summary: The addition of crude beta-dextranase in raw natural rubber/halloysite nanotube composites can improve curing time, elastic modulus, and tensile strength, resulting in minimal hysteresis loss at high temperatures. The findings suggest beta-dextranase as a potential novel interfacial modifier in NR composites.
POLYMER COMPOSITES
(2022)
