96% Alumina Ceramic Properties

96% Alumina Ceramic Properties
Item	Unité	Typical Values
Physical Properties
Color		Blanc
Densité	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
Coefficient de dilatation thermique	10-6/°C	6.5-8.0
Résistance aux chocs thermiques	△T°C	200
Maximum Use Temperature	°C	1600
Electronic Properties
Rigidité diélectrique	kV/mm	35
Constante diélectrique	Er	9-10
Dielectric Loss Angle(1MHz)		0.0002
Volume Resistivity(20°C）	Ω.cm	＞1014