High strength ceramic 99% al2o3 corundum plate

Specifications High strength ceramic 99% al2o3 corundum plate

High strength ceramic 99% al2o3 corundum plate  99%-99.5% Porcelain or Alumina ceramic Features: 1) A variety of specifications available.  2) Satisfy various technical request 3) Lower medium spoilage 4) Good insulation performance and high temperature resistance 5) Stiffness texture 6) Used in all electric products and electric heating products 7) OEM, ODM and OBM are welcomed We can supply the products according to customer's drawings, samples and performance requirement.   

Alumina ceramic is kind of structural ceramics, with insulation resistance, voltage resistance, high strength, good thermal conductivity, dielectric loss, stable electrical performance characteristics. Used in electronic ceramic substrates, ceramic electrical insulation, vacuum devices, devices porcelain, spark plugs and other products. We can make the part by hot injection pressing, dry pressing, isostatic pressing and extrusion productive technology etc
Item		Unit	95 Al2O3	99 Al2O3
Physical Characteristics	Bulk density	g/cm3	3.6	3.9
	Water absorption	%	0	0
Mechanical Characteristics	Flexural strength	Mpa	320	360
	Hardness Vickers	Gpa	12.2	15.6
	Elastic modulus	Gpa	280	370
	Poisson’s ratio	-	0.22	0.23
Thermal Characteristics	Linear expansion coefficient	(200C-5000C) 10-6/0C	7.1	8
	Thermal conductivity	w/(m.k)	16	32
	Specific Heat	*10-3J/(kg*K)	0.78	0.9
Electrical Characteristics	Dielectric constant (1MHZ)	-	9	9.9
	Dielectric loss angle	*10-4	15	1
	Dielectric strength	*106V/m	12	15
Processing technology
Process range (mm)
Outside Diameter	1---300
Inside Diameter	0.5---300
Length	0.5---1200
Accuracy of working (mm)
Perpendicularity	0.01
Concentricity	0.01
Roundness	0.005
Straightness	0.005
Parallelism	0.01
Planeness	0.005
Roughness	0.05
Fit clearance	0.005