SubsTech     
SubsTech     

to Alumina ceramics
to Properties of ceramics

Alumina ceramic (94% alumina)

(submitted by the website administration)

Alumina ceramic ( 94% AL2O3)
Chemical composition: 94% AL2O3
Property Value in metric unit Value in US unit
Density 3.69 *10³ kg/m³ 230.4 lb/ft³
Modulus of elasticity 300 GPa 43500 ksi
Flexural strength 330 MPa 47900 psi
Compressive strength 2000 MPa 290000 psi
Fracture toughness 3.5 MPa*m½ 3.5 MPa*m½
Hardness 1175 HV 1175 HV
Thermal expansion (20 ºC) 7.3*10-6 ºCˉ¹ 4.1*10-6 in/(in* ºF)
Thermal conductivity 18 W/(m*K) 125 BTU*in/(hr*ft²*ºF)
Specific heat capacity 880 J/(kg*K) 0.21 BTU/(lb*ºF)
Max. working temperature 1600 ºC 2910 ºF
Dielectric strength (DC) 8.7 KV/mm 220 V/mil
Dielectric constant (1MHz) 9.0 - 9.0 -

Related internal links

Related external links

alumina_ceramic_94_alumina.txt · Last modified: 2012/10/06 by dmitri_kopeliovich
Promote in SubsTech       Creative Commons License Except where otherwise noted, this work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License