99.7% Alumina Ceramic Polished Sheet

Aliases:Electrical Insulation 99.7% Alumina Polished Sheet Manufacturer

Introduction

The 99.7% Alumina Ceramic Polished Sheet is a high-purity advanced ceramic material engineered for applications requiring exceptional hardness, thermal stability, and electrical insulation. Made from 99.7% high-purity Al₂O₃, this polished sheet features a dense microstructure, mirror-like surface finish, and excellent chemical inertness. It performs reliably in environments with high temperature, strong wear, and demanding dielectric requirements. With precision polishing and tight dimensional tolerance, the material is widely used in semiconductor equipment, precision machinery, laser systems, vacuum devices, and electronic components. It ensures long-term performance stability and outstanding resistance to corrosion, impact, and thermal shock.

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Commission

Processing by sample | Processing by drawing | Quote within 3 hours | Samples in 3-10 days

99.7% Alumina Ceramic Polished Sheet

*Some content and parameters are for reference only. Our company can adjust ceramic performance and customize processing according to customer needs.

Design Features

1.High Purity 99.7% Al₂O₃

Ensures high mechanical strength, excellent insulation, and long-term stability.

2.Ultra-Smooth Polished Surface

Low surface roughness suitable for semiconductor and optical-grade precision applications.

3.High Hardness & Wear Resistance
Mohs hardness up to 9, maintaining excellent durability under friction and abrasion.

4.Superior Electrical Insulation
Stable dielectric properties, ideal for high-voltage and high-frequency applications.

5.Exceptional Thermal Stability
Can operate at continuous temperatures above 1500°C, with excellent thermal shock resistance.

6.Corrosion & Chemical Resistance
Inert to acids, alkalis, plasma environments, and most industrial chemicals.

7.Tight Dimensional Tolerance
CNC machining and double-sided polishing available for custom sizes and precision assemblies.

Application Areas

Semiconductor manufacturing equipment
Wafer handling components, precision spacers, and insulating substrates.
Electronic components & packaging
High-voltage insulation sheets, dielectric substrates, sensor bases.
Laser and optical systems
Polished ceramic mounts, mirrors supports, and thermal management components.
High-temperature industrial equipment
Furnace insulation plates, high-temperature spacers, heat-resistant structural parts.
Vacuum and plasma systems
Insulating plates, protective barriers, chamber components.
Precision machinery
Wear-resistant pads, alignment fixtures, guiding plates.
Medical and laboratory equipment
Chemical-resistant carriers, sample holders, analysis device components.

Haikun · Production · Dongguan,China

Dongguan Haikun New Material Co., Ltd.

A global advanced precision ceramics (special ceramics) manufacturer, focusing on the development, design, production and sales of advanced precision ceramic products, covering zirconium oxide, aluminum oxide, silicon nitride and other materials, which are widely used in aviation, aerospace, military industry, medical and other fields

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Comparison of ceramic material properties

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