Model specifications and prices of silicon-molybdenum rods. Uses and functions of silicon-molybdenum rods. Silicon molybdenum rod 1. UL type silicon molybdenum rod is also called U-shaped right angle rod: Molybdenum disilicide electric heating element is a resistance heating element based on molybdenum silicide. It is heated to high temperature in an oxidizing atmosphere, and a layer is formed quickly on the surface. Dense quartz glass film protects it