Nishimura provide two types of low-expansion ceramics, cordierite porcelain and lithia porcelain.
Since their thermal expansion coefficient is low, they are highly resistant against heat shocks, and commonly used as insulators for electric heaters that required heat shock resistance.
Furthermore, lithia porcelain scarcely changes its size due to heat changes, with a thermal expansion coefficient of 0.4 – 0.5 x 10-6/degrees C at room temperature (20-30℃).
High reflectivity ceramics
Nishimura Porcelain’s high reflectivity ceramic (N-9000T) mainly contains alumina, and its reflectivity against electromagnetic waves in the visible light range (400 – 800 nm) is 90 – 94%.
Ceramic material N-9000T shows high resistance against heat and ultraviolet rays.