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Design and additive manufacturing of a lightweight aerospace electric actuator.
Open Res Eur
February 2025
Egile Mechanics S.L., Polígono Industrial Kurutz-Gain, 12, Mendaro, 20850, Spain.
Background: The ambitious electrification targets set for the aeronautical sector are leading to a thorough research into improving the performance of different electromechanical components. In this regard, Additive Manufacturing is gaining strength due to the positive physical properties of the processed parts and the freedom in manufacturable geometries.
Methods: Thus, this article presents the design of an electric actuator for an aerospace active sidestick in which Additive Manufacturing is used with the aim of minimising the mass and power consumption of the device.
Compositional study of Ti-Nb oxide (TiNbO, TiNbO, TiNbO, and TiNbO) anodes for high power Li ion batteries.
J Mater Chem A Mater
February 2025
Department of Engineering, University of Cambridge 17 Charles Babbage Road CB3 0FS Cambridge UK
Titanium niobium oxides (TNOs) are attractive anode materials for high power density Li-ion batteries. However, the details of capacity storage in TNOs are not fully understood today as it depends on the Ti and Nb composition and their changes in the oxidation state. This is further complicated by a wide variation in gravimetric capacities reported in the literature for TNO anodes.
View Article and Find Full Text PDFProgress and Perspectives in 2D Piezoelectric Materials for Piezotronics and Piezo-Phototronics.
Adv Sci (Weinh)
March 2025
Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea.
The emergence of two-dimensional (2D) materials has catalyzed significant advancements in the fields of piezotronics and piezo-phototronics, owing to their exceptional mechanical, electronic, and optical properties. This review provides a comprehensive examination of key 2D piezoelectric and piezo-phototronic materials, including transition metal dichalcogenides, hexagonal boron nitride (h-BN), and phosphorene, with an emphasis on their unique advantages and recent research progress. The underlying principles of piezotronics and piezo-phototronics in 2D materials is discussed, focusing on the fundamental mechanisms which enable these phenomena.
View Article and Find Full Text PDFExperimental and Model Calculation Research on Shrinkage of Hybrid Fiber-Reinforced Recycled Aggregate Concrete.
Materials (Basel)
March 2025
Faculty of Construction and Environment, The Hong Kong Polytechnic University, Hong Kong 999077, China.
Recycled aggregate concrete (RAC), which is made by replacing all natural coarse and fine aggregates with recycled aggregate, plays a significant role in improving the recycling rate of construction materials, reducing carbon emissions from construction, and alleviating ecological degradation issues. However, due to its low strength and significant shrinkage and deformation problems, RAC has limited application. The effort of fiber type, fiber admixture, and fiber hybridization on autogenous shrinkage were studied to improve the structural safety of building materials and broaden the application of RAC.
View Article and Find Full Text PDFProcess Parameters Analysis in Diamond Wire Saw Cutting NdFeB Magnet.
Materials (Basel)
March 2025
Key Laboratory of High Efficiency and Clean Mechanical Manufacture of MOE, School of Mechanical Engineering, Shandong University, Jinan 250061, China.
Neodymium iron boron (NdFeB) magnetic materials are widely used in fields such as electronics, medical devices, power machinery, and hardware machinery. This paper conducted a three-factor and five-level orthogonal experiment on diamond wire saw cutting NdFeB to determine the influence degree of key factors such as workpiece feed rate, diamond wire speed, and workpiece processed size on the surface roughness a and waviness a of NdFeB slices. Further analysis was conducted on the influence of various parameters on the PV value (peak valley difference) of the waviness profile curve of the sawed surface.
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