What is the infrared radiant powder for electric furnaces synthesized from? Thank you.

Infrared furnace abroad called Mickey furnace, stove plate overall imported, stove plate comes with high temperature platinum (very expensive rare metal) temperature detection,. Commercially available inside the two halogen lamps sold inside the furnace called infrared furnace, false, glass tube temperature will be too high to burn into a glass bubble, and tungsten iodine lamps are almost the same thing, the life expectancy is extremely short.