96% Alumina Ceramic Properties

96% Alumina Ceramic Properties
Item	Unit	Typical Values
Physical Properties
Color		White
Density	g/cm3	3.7
Alumina Content	%	96%
Gas permeability		0
Water Absorption		0
Mechanical Properties
MONS’ Hardness	Grade	9
Rockwell Hardness	HRA	90
Vickers Hardness (Hv50)	Gpa(Kg/mm²)	15.7（1600）
Flexural Strength(20°C)	Mpa	300
Compressive Strength(20°C)	Mpa	2000
Modulus of Elasticity (20°C）	Gpa	275
Poisson’s Ratio (20°C)		0.22-0.23
Fracture Toughness(20°C)	MPam1/2	3.5
Thermal Properties
Thermal Conductivity(20°C-400°C)	W（m.K）	25
Thermal Expansion Coefficient	10-6/°C	6.5-8.0
Thermal Shock Resistance	△T°C	200
Maximum Use Temperature	°C	1600
Electronic Properties
Dielectric Strength	KV/mm	35
Dielectric Constant	Er	9-10
Dielectric Loss Angle(1MHz)		0.0002
Volume Resistivity(20°C）	Ω.cm	＞1014