B16 W4

B16 W4 is a tungsten-based semiconductor or intermetallic compound, likely a binary or ternary system combining tungsten with boron and possibly other elements. This material belongs to the family of refractory semiconductors and transition metal compounds, which are of interest for high-temperature electronics, photovoltaic applications, and specialized sensing devices. The tungsten-boron chemistry suggests potential use in extreme environments where conventional semiconductors degrade, though this specific composition appears to be primarily a research or specialty material rather than a widely commoditized product.