Achievements
Achievement
In recent years, as global demand for clean energy has surged, high‑efficiency energy storage technologies have become a major research focus in the energy sector. Among these, latent heat thermal energy storage (LHTES) has attracted considerable attention due to its high energy density and excellent stability. Recently, a joint team comprising researchers from the Norwegian University of Science and Technology and Poland’s Warsaw University of Technology, among other institutions, published a groundbreaking study in the journal Results in Engineering: they have, for the first time, successfully developed microcapsules containing an ultra‑high‑temperature phase change material (PCM) based on a silicon–iron eutectic alloy. This material can operate at temperatures exceeding 1,200°C, with an energy storage density far surpassing that of existing technologies. In this article, we will explore this cutting‑edge advancement, covering its background, underlying technical principles, experimental results, and potential future applications.
In the aerospace sector, nickel-based superalloys have long been the material of choice for manufacturing critical engine components, thanks to their outstanding high-temperature performance. With the advancement of additive manufacturing technologies, the demand for high-quality nickel-based superalloy powders has grown increasingly urgent. However, conventional powder‑making methods either fail to meet quality standards or suffer from low efficiency, posing significant challenges to the industry. Fortunately, a new approach—Self‑Impact Ultrasonic Atomization (SIUA)—developed by a team at Dalian University of Technology has successfully overcome these limitations, opening up a promising new pathway for producing nickel‑based superalloy powders.
This paper provides a detailed analysis of an innovative powder‑preparation technique—ultrasonic vibration‑assisted melt atomization—proposed by Professor Dong Fuyu of Shenyang University of Technology and colleagues, focusing on its application in the production of high‑entropy alloy powders. In particular, it presents research findings on the TiZrTa0.7NbMo high‑entropy refractory alloy, offering new avenues for the development of advanced materials with superior high‑temperature performance and mechanical strength.
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