Chemical Resistant Ceramics

One of the properties of ceramics is their resistance to chemicals such as acids and alkalis.
We tested the chemical resistance of our own alumina ceramics by measuring the decrease in weight after immersion in HF, hydrogen fluoride (a strongly corrosive chemical).
It is translucent aluminaN-9000NSでhas approximately 10 times higher chemical resistance than N-999S,which has 99.9% alumina purity,and shows better resistance to hydrofluoric acid than sapphire.

	N-9000NS (Alumina 99.99%)			N-9000T(Alumina 99.99%)			N-999S(Alumina 99.99%)
Soaking period	Weight	Decreased weight	Rate of change	Weight	Decreased weight	Rate of change	Weight	Decreased weight	Rate of change
Soaking period	(g)	(g)	(%)	(g)	(g)	(%)	(g)	(g)	(%)
Before soaking	15.6436	－	－	15.3796	－	－	14.4281	－	－
168hr later	15.6408	0.0028	-0.0176	15.3722	0.0074	-0.0480	14.4003	0.0278	-0.1926
/24hr	－	0.0004	-0.0025	－	0.0011	-0.0069	－	0.0040	-0.0275

※※liquid medicine：HF、Temp：60℃、Concentrations：46%
※Table can be scrolled horizontally

主な用途

Semiconductor related：With its high chemical resistance and heat resistance, it is used as a component of semiconductor manufacturing equipment.
cleaning：Ideal for parts of cleaning equipment that require resistance to chemicals.
Glass surface treatment：They are used as components for equipment used in the surface treatment process of glass products, and are also ideal for use in medical analysis equipment and components that handle chemicals. All of the above ceramics can be green processed (raw processing).。