Cordierite

-This ceramic is MgO・Al2O3・SiO2 kind, and it consists on 2MgO・2Al2O3・5SiO2 which is cordierite crystal. This material has two type, called N-23 and N-53.
-Especially, N-53 has more Nishimura’s originality. The N-53s special feature is an appearance which is like after glazed.

Salient feature

-High thermal shock resistance
-Low thermal expansion

Application

-Thermal resistance parts (Air heater, Heater holding)
-low thermal expansion parts

properties

characteristic
Nishimura No. N-23 N-53
Main component 2MgO・2Al2O3・5SiO2 2MgO・2Al2O3・5SiO2
Bulk specific gravity 2.2 2.7
Water absorption <0.5% 0%
Bending strength 120MPa 120MPa
Dielectric constant 4(1MHz) 4(1MHz)
Dielectric loss tangent 4.0×10-4(1MHz) 5.0×10-4(1MHz)
Thermal expansion coefficient 2.8×10-6/℃ 2.6×10-6/℃
Thermal conductivity 1.25W/mK 2.5W/mK
Thermal shock resistance 400℃ 150℃
 

For inquiries and further information:

Nishimura Porcelain Co., Ltd.
npc-e3@nishimuratougyou.co.jp 
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