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Alumina Sheet High Temperature / Voltage / Wear Resistant Alumina Ceramic Sheet

95% - 99% Alumina Ceramic Plate / Substrate / Sheet has the heat resistance and wear-resisting corrosion, it is our company's most core competitive products, the thickness of the plate we better can reach 0.2mm, the length can reach 350mm.

Specification:
1. Refractory, High Temperature Resistance, Maximum Used Temperature: 1800 ºC (3272ºF)...
2. Hardness Strength, Wear Resistance Up To Mohz 9.0; HRA 80-90...
3. High Voltage, Good Insulation Performance ,Electrical Resistivity Up To 10∧14 Ohm.Cm...
4. High Polished Surface Up To Rz0.8(Ra0.1) ...
5. Superior Mechanical Strength, Max 10 MPa.m1/2 Fracture toughness,
6. Pressure Resistance, Max 2300MPa compressive strength...
7. Anti-High Corrosion Resistance, Such As Acid  Alkali Resistance...
8. Long Service Life...
9. Other excellent property

Part of us manufacturer available sizes(include but not limited belows)

Length	Width	Thickness	Length	Width	Thickness
100mm	100mm	3mm	100mm	100mm	6mm
-	25mm	2mm	-	50mm	2mm
50mm	50mm	1mm	50mm	50mm	2mm
100mm	100mm	10mm	Shape:  square, round, oval, flat, strip, porous, irregular, etc

The length, thickness , diameter and shape of the ceramic plates are customized.



High purity alumina ceramics
99.99% Alumina ceramic; 99.9% Alumina ceramic,

Ordinary alumina ceramics
99.7% Alumina ceramic,99.5% Alumina ceramic,99% Alumina ceramic,97% Alumina ceramic,96% Alumina ceramic,95% 

The properties of ceramics

· Flexural strength	· Chemical resistance	· Electrical insulation	· Corrosion resistance	· Dielectric strength
· Wear resistance	· Temperature resistance	· Thermal conductivity	· High voltage	· Hardness...

High heat and temperature resistant
The ceramic have a excellent high heat temperature resistant ability. Ceramic can be used under 1800 ℃ high temperature environment.Coefficient of thermal expansion up to 13* 10^∧6 from 20°C- 1800°C. up to 2800°C Melting point.

High voltage and Insulator resistant
High frequency insulating ceramics have small dielectric constant, low dielectric loss, high mechanical strength, high dielectric strength, insulation resistance and thermal conductivity.Dielectric constant up to 10; Electrical resistivity up to 10^∧14 Ohm.cm at 20°C ;Dielectric strength up to 20 kV/mm...

Wear abrasion resistant
The ceramic is better wear and abrasion resistant property than metal. The ceramic hardness (mohs)up to 9, HRA 80-90. Ceramic hardness is not second only to diamond, but far beyond the wear resistance of steel and stainless steel.

Dimension :  
Length as long as 350mm
Thickness as thin as 0.2mm，depends on length and width
Length and thickness tolerance we could make as fine as 0.001mm 

	Al 2O 3	ZrO2/Y2O3	ZrO2/MgO	MgO	SiC	Si3N4 Reaction sintered	Si3N4 Hot pressed	ALN
Physical properties
Density (g/cm3)	3,9	5,9	5,75	3,58	3,2	3,27	3,29	3,26
Molecular weight (g/mole)	102	-	-	40,4	40,1	140	140	41
Maximum service temperature air (°C)	1700- 1800	1500	1000	2200	1500	1200- 1500	1100- 1600	1000- 1800
Mechanical properties
Hardness (Mohs)	9	-	-	5,5	9	-	-	7
Modulus of elasticity (GPa)	300-400	200	200	250-300	420	170-220	280-310	318
Poisson's ratio	0,25	-	-	0,18	0,14	0,25-0,26	0,27	0,25
Fracture toughness (MPa.m1/2)	2-3	7-13	6-10	-	2,5-3,5	3,5-5	6,1	4,5
Electrical properties
Dielectric constant	9-10	-	-	9-10	-	10	10	9,2
Electrical resistivity at 20°C (Ohm.cm)	>10 14	10 13-10 14	>10 10	-	10 2-10 6	>10 7	10 12- 10 15	>10 14
Dielectric strength (kV/mm)	10-20	9	2-10	-	-	-	-	15
Thermal properties
Specific heat (J/K/kg)	900	400-500	420	870-880	750	690	680-800	800
Thermal conductivity (W/m/K) at 20°C	26-35	2,2-3,2	1,5-2,5	40-50	63-155	9-30	15-43	180
Coefficient of thermal expansion ( 10-6) from 20 to 1000°C	8-9	10-11	5-16	10-13	4-5	3	3,3	4,4-5,3
Melting point (°C)	2050	2590	-	2800	2500	1900	1900	2200

FAQ
1. Monthly Capacity: 50,000-60,000 pcs;
2. Material: OEM or as per your suggestion;
3. Lead time: about 7-10 days, pls confirm the quantities required;
4. Incoterm: FOB, CFR, CIF;
5. Delivery Cost: It is determinated by the destination port;
6. Payment Term: PayPal; T/T; L/C.
7. Shipment: by sea, by air, by courier, by post, etc.
 
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