Stable Performance Alumina Ceramic for High-Frequency Environments

Alumina ceramic insulating components are advanced ceramic materials primarily composed of high-purity aluminum oxide (Al₂O₃), offering excellent electrical insulation, high-temperature resistance, and mechanical strength. With Al₂O₃ content typically ranging from 90% to 99.9%, higher purity grades deliver superior insulation performance, making them ideal for high-voltage, high-frequency, and high-temperature electrical applications.

Applications

• Electronics & Electrical Industry: High-voltage insulators, circuit substrates, vacuum switch tubes

• Energy Sector: Power transmission insulation components, transformer insulation parts

• Semiconductor Equipment: Wafer carriers, plasma etching components

• Industrial Machinery: Heating element insulation supports, sensor protection sleeves

• Aerospace & Defense: Rocket engine insulation coatings, high-voltage isolation components

Advantages

✅ Superior Insulation: Volume resistivity >10¹⁴ Ω·cm, dielectric strength >15 kV/mm
✅ High-Temperature Resistance: Long-term use up to 1600°C, short-term up to 1800°C
✅ Chemical Stability: Resistant to acids, alkalis, and most solvents
✅ High Mechanical Strength: Flexural strength 300-400 MPa, Mohs hardness 9
✅ Low Dielectric Loss: Stable performance even in high-frequency environments

Technical Specifications

Manufacturing Process

1. Raw Material Preparation: High-purity Al₂O₃ powder mixing with forming agents

2. Forming Process: Dry pressing / Isostatic pressing / Injection molding (for complex shapes)

3. Sintering Process: High-temperature densification at 1600-1800°C

4. Precision Machining: CNC grinding, laser cutting, polishing

5. Quality Control: Insulation withstand voltage test, dimensional accuracy inspection

Usage Guidelines

⚠️ Precautions:

• Avoid thermal shock (temperature change rate <100°C/min)

• Prevent mechanical stress concentration during installation to avoid cracking

• Not recommended for strong acid (e.g., hydrofluoric acid) environments

• Store in a dry environment to maintain insulation properties

After-Sales Service

We provide:

• Technical support: Customized insulation solutions

• Fast response: Solutions within 48 hours

• Long-term cooperation: Bulk order discounts & maintenance services

FAQ

Q: What is the maximum voltage alumina ceramic insulators can withstand?
A: Standard products can endure 15-30 kV/mm, with higher ratings available upon special treatment.

Q: What are the advantages over plastic insulation materials?
A: Higher temperature resistance, no aging, and greater mechanical strength, suitable for harsh environments.

Q: Can custom complex-shaped parts be manufactured?
A: Yes, CNC machining and injection molding enable production of intricate insulating components.

We are a company with many years of experience in the production of special precision ceramics and the ability to design, manufacture, process and sell structural and functional parts of various special precision ceramics.

Deyu Precision Ceramics Technology Co., Ltd. has many years of experience in producing special precision ceramics, and has the ability to design, manufacture, process and sell structural and functional parts of various special precision ceramics. At present, the company has production and processing equipment such as dry press, isostatic press, experimental furnace, flat kiln, machining center, surface grinder, universal internal and external grinder, centerless grinder and laser cutting machine, as well as complete high-precision testing equipment such as high-precision projector, three-dimensional tester, metallographic microscope, hardness tester and densitometer.

With advanced production technology and complete production facilities, the company is one of the few domestic enterprises that can produce special precision ceramic structural parts and functional parts with machining accuracy less than 2 microns, and has strong core competitiveness in the same industry in China.

Advantages of the company: 1. National new technology enterprises; 2. The company has a municipal R&D center; 3. Cooperation with domestic key universities and research institutes; 4. Design, molding, sintering and precision processing; 5. The products cover alumina, zirconia, silicon nitride, silicon carbide and other precision ceramics; 6. Precision plus technology.

The company has always been standing in the position of customers to solve problems, focusing on the principle of quality and delivery time, adhering to the business philosophy of "integrity, innovation and reassurance", and sincerely looking forward to cooperating with you.