High Pure Al2O3 Refractory Ceramic Blocks

• Application: Refractory, Industrial Ceramic
• Material: Alumina Ceramic
• Type: Ceramic Plates
• Color: Yellow,White
• Shape: Round,Square,Rectangular,Cylindrical
• Feature: Round,Square,Rectangular,Cylindrical
• Model NO.: YN-589
• Working Temperature: 1600c 1800c
• Purtiy: 99% Al2O3,95%,75%
• Transport Package: Pallet
• Specification: CUSTOMIZED
• Trademark: Yunnuo
• Origin: China
• HS Code: 8547100000
• Production Capacity: 500000 PCS/Year

Product Description

95% 99% 99.7% alumina ceramic substrate 

Application:
They are used in thick film circuits, ceramic metallization, ozone generators, audio, LED lighting, electronic insulation devices,solar new energy and other industries.

Features:
It has the characteristics of low dielectric loss, stable electrical performance, smooth surface, consistent thickness, good
flatness, and overall dimensions,ect.

Size:
The thickness can be produced from 0.25mm -----15 mm, and the ceramic substrate can be punched and lineated.

We can customize to your requirements. Below sizes are some examples.

Length mm	Width mm	Thickness mm
3	10	1
22	20	0.8
100	50	1
4	4	1
50	20	0.8
100	100	0.5-1
80	80	2
88	77	8
8.4	7.5	0.635
150	75	1
152	135	1
150	100	0.6
Diameter mm	Thickness mm
50	0.5
80	2
100	2

AL2O3%	60	75	80	85	92	95	99	99.7
Bulk Density (g/cm3)	3.0	3.1	3.3	3.4	3.6	3.7	3.81	3.91
Flexural strength (MPa)	205	280	215.7	230	312	304	340	370
Linear expansion coefficient (×10-6/C)(25-800C)	7.1	7.6	7.6	7.6	7.5	7.3	7.6	7.6
Thermal conductivity [w/(m.R)]	16	17	17	17	18	20	34	35
Dielectric strength (KV/mm)	10	10	10	10	10	10	10	10
Volume resistivity (Ω.cm) 20C	>1014	>1014	>10 14	>1014	>1014	>1014	>1014	>1014
300C	>1013	>1013	>10 13	>1013	>1013	>1012	>1010	>1010
Max C	1350	1100	1300	1350	1500	1600	1700	1800
Moh's hardness	7.5	7.5	7.5	7.5	8.5	8.8	9	9
Refractoriness	1800	1700	1800	1850	1920	2000	2030	2040