95% Alumina Ceramic Properties

95% Alumina Ceramic Properties
Item	Unit	Typical Values
Physical Properties
Color		White
Density	g/cm3	3.7
Alumina Content	%	95%
Acid Resistance	mg/cm2	≤0.7
Alkali Resistance	mg/cm2	≤0.7
Abrasive Resistance	g/cm2	≤0.2
Gas permeability		0
Water Absorption		0
Mechanical Properties
MONS’ Hardness	Grade	8.5
Rockwell Hardness	HRA	80
Flexural Strength	Mpa	300
Compressive Strength	Mpa	2500
Modulus of Elasticity	Gpa	300
Poisson’s Ratio		0.2
Thermal Properties
Thermal Conductivity(20°C)	W（m.K）	20
Thermal Expansion Coefficient	10-6/°C	7.5
Thermal Shock Resistance	△T°C	200
Maximum Use Temperature	°C	1600
Electronic Properties
Dielectric Strength	KV/mm	20
Dielectric Constant (20°C)	Er	9.1
Dielectric Loss Angle(1MHz)		0.0002-0.0003
Volume Resistivity(20°C）	Ω.cm	＞1014