Low-Sodium Alpha Aluminum Oxide (2-3μm) | White Alumina Ceramics for Vacuum Tubes & Extrusion

Product Description

High-purity white alumina ceramics (Al2O3 ≥99.8%) with 2-3μm crystal size. Ideal for electric vacuum tube shells (dry pressing) & extruded ceramics. Excellent electrical insulation & sinterability.

Low-Sodium Alpha Aluminum Oxide for Advanced Technical Ceramics

Our high-purity white alpha aluminum oxide powders are engineered for demanding ceramic forming processes. With controlled crystal sizes (0.5-3.0μm) and ultra-low sodium content, they are the ideal choice for applications ranging from electric vacuum tubes to extruded wear-resistant parts.

Product Grades & Specifications

Note: 'V' variant grades (e.g., TM-CB-V) offer slightly adjusted purity with similar physical properties.

Application-Specific Product Guide

Key Features & Benefits by Series

TM-CB Series (e.g., TM-CB, TM-CB-V)

• Superior Electrical Insulation: Essential for high-performance electric vacuum applications.

• Excellent Grindability & Uniformity: 2-3μm original crystals ensure a uniform microstructure and superior surface finish after grinding.

• Ideal for Metallization: The composition and structure provide an excellent substrate for subsequent metal coating processes.

TM-CC Series (e.g., TM-CC-1, TM-CC-2)

• Enhanced Sinterability: Fine, reactive particles promote densification at optimized temperatures.

• High Fired Density: Results in ceramic bodies with high mechanical strength and durability.

• Uniform Shrinkage: Narrow particle size distribution ensures predictable and consistent dimensional control during firing.

Founded in 2017, Kegu is a leading advanced materials developer based in China’s Xixian New District, Qinhan New City—strategically positioned near major transport links including the Xianyang East Expressway. With a registered capital of 35.5 million RMB (approx. 5 million USD), we operate from a modern 5-acre production facility where we combine materials science innovation with precision manufacturing.

We specialize in engineering high-performance ceramic components for mission-critical industries such as New Energy, Chemical Processing, Pharmaceuticals, and Aerospace. Our products are known for exceptional thermal stability, excellent chemical resistance, and outstanding mechanical properties.

Leveraging a strong R&D foundation, we deliver customized ceramic solutions that meet stringent international quality standards while enhancing operational performance and reducing lifecycle costs for OEMs and innovators worldwide. At Kegu, we’re solving tomorrow’s material challenges—today.