A lab mistake led to self-forming spiral patterns on metal surfaces, revealing chemical-mechanical interactions.

While most of the time the name of the game is to remove a lot of metal, etching is an entirely other process. If you just want to put a logo on a piece of steel, or etch some labels in a piece of ...

Metal-assisted chemical etching patterns at a Ge/Cr/Au interface modulated by the Euler instability, Physical Review Materials (2025). DOI: 10.1103/PhysRevMaterials.9.035201 ...

UCLA doctoral student Yilin Wong left a sample out by mistake. It was a small chip made of germanium, topped with thin layers ...