Achievements
Achievement
In recent years, driven by the surging global demand for clean energy, high-efficiency energy-storage technologies have emerged as a research hotspot in the energy sector. Among these, latent-heat thermal energy storage (LHTES) has garnered significant attention due to its high energy density and excellent thermal stability. Recently, a joint team from the Norwegian University of Science and Technology and Warsaw University of Technology in Poland, among other institutions, published a groundbreaking study in the journal Results in Engineering: for the first time, they have successfully developed ultra-high-temperature phase-change material (PCM) microcapsules based on a silicon–iron eutectic alloy, with an operating temperature exceeding 1,200°C and an energy-storage density far surpassing that of existing technologies. This article will provide an overview of this cutting-edge advancement, covering its background, underlying technical principles, experimental results, and potential future applications.
With the rapid advancement of 3D printing (additive manufacturing) technology, the demand for high-performance metal powders is steadily increasing, particularly in industries such as aerospace, automotive, and medical. As a next-generation metal powder, titanium-based composite powder has emerged as a research hotspot due to its outstanding properties, including low density, high strength, and excellent corrosion resistance. However, conventional powder-production methods suffer from issues such as non-uniform particle size, severe agglomeration, and compositional heterogeneity, which limit their practical applications. Recently, an innovative ultrasonic atomization technique has offered a new solution to these challenges. This paper provides an in-depth exploration of the “Preparation and Performance Study of Multi-Scale Reinforced Titanium-Based Composite Powders via Ultrasonic Atomization,” proposed by Professor Dong Fuyu and his team at Shenyang University of Technology. It examines the process flow, microstructure, mechanical and functional performance, and future application prospects of this material.
In the aerospace sector, nickel-based superalloys have long been the material of choice for manufacturing critical engine components due to their outstanding high-temperature performance. With the rapid advancement of additive manufacturing technologies, the demand for high-quality nickel-based superalloy powders has grown increasingly urgent. However, conventional powder-production methods either fail to meet quality standards or suffer from low efficiency, posing significant challenges to the industry. Fortunately, a recent breakthrough by a team at Dalian University of Technology—the Self-Impact Ultrasonic Atomization (SIUA) method—has successfully overcome these bottlenecks, opening up a new avenue for the production of nickel-based superalloy powders.
This paper presents a recent research achievement: the preparation of powders using AMAZEMET’s rePowder ultrasonic atomization system. Through systematic design and microstructure control, an innovative aluminum alloy with high strength, high ductility, and excellent high-temperature resistance has been successfully developed, opening up new prospects for enhancing the performance of 3D-printed aluminum alloys.
With the continuous advancement of materials science, the demand for high-performance alloys with superior corrosion resistance and wear resistance is steadily increasing. This is particularly true in industries such as aerospace, energy, and electronics, where the performance requirements for coating materials are constantly rising. Traditional powder-production methods, including powder metallurgy and mechanical milling, are increasingly unable to meet the need for precise control and functionalization of complex materials. Against this backdrop, ultrasonic atomization—a green and highly efficient new powder-production technology—has gradually emerged as a focal point in the research and development of advanced materials.
This paper provides a detailed analysis of an innovative powder-production technique—ultrasonic vibration-assisted melt atomization—proposed by Professor Dong Fuyu and his colleagues at Shenyang University of Technology, with a focus on its application in the preparation of high-entropy alloy powders, particularly the research findings on the TiZrTa0.7NbMo high-entropy refractory alloy. The study offers new insights for the future development of high-temperature, high-strength materials.
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