Zirconia has the properties of chemical inertness, so it is good
material to work on chemical condition: hard to be corroded by chemical
products, and by no means to pollute chemical products. We have the
collaboration experience with coal power plants, petrochemical industry
and catalyzer makers. The thermoelectric couple we developed can
monitor the air temperature in the furnace in the coal power plants,
resisting the very-high temperature, corrosion and strike of the
high-speed pulverized coal.