High Strength 99% Al2O3 Polished Alumina Ceramic Sheets for Kiln

• Customization: Available
• Grain Size: 1-10um
• Purity: 95%
• Model NO.: C-24
• Pressing Speed: Punch Forming
• Suppression Method: Unidirectional Pressurization
• Application: Industrial Ceramics
• Color: White, Yellow, Pink, Cream
• Useage: Thin Film Device
• Shape: Round, Square, Rectangular, Cylindrical
• Surface Finish: Polished, Machined, Slot, Bore, Notch
• Working Temperature: 1400-1800c
• Synonyms: Aluminium Oxide, Alundum, Corundum, Alumina Oxide
• Size: Customers′ Requests
• Feature: Heat Resistance, Mechanical Strength, Abrasion Res
• Transport Package: Carton
• Specification: CUSTOMIZED
• Trademark: Yunnuo
• Origin: China Shanghai
• HS Code: 8547100000
• Production Capacity: 500000 PCS/Year

Product Description

Product Description

          Aluminua ceramics is a ceramic material mainly composed of aluminum oxide (Al2O3), used in thick film integrated circuits. Alumina ceramics have good conductivity, mechanical strength, and high temperature resistance. It should be noted that ultrasonic cleaning is required. Alumina ceramics are a widely used ceramic, and due to their superior performance, their applications in modern society have become increasingly widespread, meeting the needs of daily use and special performance.

         Widely used in coal-fired power plants, steel, smelting, machinery, coal, mining, chemical, cement, port terminals and other enterprises' coal conveying, material conveying systems, pulverizing systems, ash discharge, dust removal systems and other heavily worn mechanical equipment, we can provide different types of products according to different needs.
95% 99% 99.7% alumina ceramic substrate 

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.

         

Material data

 

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

 

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

FAQ

Q1: How can know your quality?
We can send you samples or sample material for you to check or test.Let our physical samples speak loudly.
Q2:Are these samples free of charge?
Some standard small samples are free.If same as your requirements,we will just charge for mould to support.
Q3:If products are not to requirement,how can you do?
We will try our every best to solove it.Meeting your requirement is our mission.
Q4:What's the lead time?
Normally,for standard items,will ship within 1-10 days.For mass production order,we will finish within 30 working days after we receive payment.
Q5:Payment terms:
We can negotiate.