Molybdenum silicide was discovered in 1906. Silicon and molybdenum can form molybdenum silicide (MoSi3), molybdenum silicide (Mo5Si3) and molybdenum disilicide (MoSi2) under different conditions. Molybdenum disilicide can form a silicon dioxide protective layer on the surface at high temperature to prevent further oxidation. It has good high-temperature oxidation resistance and excellent electrical conductivity. Its melting point is 2030℃ and is considered to be a very promising ultra-high temperature structural material.

Molybdenum silicon rod is an electric heating element made of molybdenum disilicide material, also known as "molybdenum disilicide heating element", "molybdenum disilicide heating element", "molybdenum disilicide heating element", etc. It has excellent high-temperature performance; it has properties similar to metals and ceramics. Molybdenum disilicide materials have higher strength and greater brittleness (similar to ceramics) at low temperature, and have metal-like soft plasticity at high temperatures above 1000℃.

The silicon in silicon-molybdenum rods is a chemical element, its chemical symbol is Si, formerly known as silicon (Taiwan still uses the word "silicon" today). Silicon is also a very common element, but it rarely appears in nature in the form of a single substance, but in the form of complex silicates or silicon dioxide, widely present in rocks, gravel, and dust. The molybdenum in silicon-molybdenum rods is a refractory rare metal, its chemical symbol is Mo, and the melting point of molybdenum is 2620℃. Due to the strong bonding force between atoms, the strength is very high at both room temperature and high temperature. It has a small expansion coefficient, high conductivity, and good thermal conductivity.

The early application of silicon-molybdenum rods was mainly as a high-temperature and corrosion-resistant coating protection material for the surface of metal substrates. It was first used in the coating of gas turbine parts, jet engine combustion chambers, and missile combustion chambers. With the continuous development and innovation of technology, the application fields are also constantly expanding and updating. Now it is widely used in the research and production of metallurgy, steelmaking, glass, ceramics, refractory materials, crystals, electronic components, semiconductor materials, etc., especially for the production of high-performance precision ceramics, high-grade artificial crystals, precision structural metal ceramics, glass fiber, optical fiber and high-grade alloy steel. (Such as: muffle furnace, dental furnace, tunnel kiln, roller kiln, glass kiln, smelting furnace, diffusion furnace, etc.)