1. Introduction: Iridium’s Strategic Position Iridium (Ir) stands as one of the rarest elements in the Earth’s crust, with an average abundance of approximately 0.001 ppm. According to USGS Mineral Commodity Summaries 2025, global primary iridium production—derived entirely as a…
1. Introduction: Tin’s Strategic Role in Electronics Tin (Sn) occupies a foundational position in the global electronics supply chain. With a density of approximately 7.3 g/cm³ and a melting point of 231.9°C, tin is a low-melting-point, soft, ductile metal that…
1. Introduction: Understanding Selenium’s Dual Role Selenium (Se) occupies a unique position in the industrial materials landscape. It is neither a bulk commodity metal nor a mere laboratory curiosity. Rather, it functions as a critical trace additive and functional component…
Terbium (Tb), atomic number 65, sits between gadolinium (Gd) and dysprosium (Dy) in the lanthanide series. Among rare earth elements, terbium stands out for its rare combination of magnetic and optical properties—it is simultaneously one of the elements with the strongest…
At the critical juncture where the global EV industry is transitioning from “policy-driven” to “market-driven,” the performance of the traction motor directly determines vehicle power, range, and manufacturing cost. The material that sets the upper limit of motor performance is…
