Comprehensive information on alumina material carriers, high-temperature resistant ceramic wear-resistant structural components, and specialized mechanical bearings:
Alumina Material Carrier Product Introduction
Alumina material carriers are ceramic products primarily composed of aluminum oxide (Al₂O₃), possessing the following characteristics:
1. Material Characteristics:
Purity range: 75% to 99.9%, with higher purity resulting in superior performance (99.5% and above used in high-end applications).
Crystal structure: Stable α-Al₂O₃ (corundum structure) at high temperatures, with a Mohs hardness of 9, second only to diamond and cubic boron nitride.
Melting point of approximately 2050°C, with a long-term operating temperature of up to 1600°C. High resistivity and strong chemical inertness (resistant to acid and alkali corrosion, except for hydrofluoric acid and strong alkalis).
Application Areas:
• Electronics/Electrical: Integrated circuit substrates, high-voltage insulators, spark plug insulators.
• Industrial Machinery: Wear-resistant components (bearings, sealing rings), cutting tools.
• Medical: Artificial joints, dental implants.
• Chemical/Energy: Corrosion-resistant reactor linings, fuel cell membranes.
• Aerospace: High-temperature thermal insulation tiles, missile radomes.
Classification and Applications
Classification | Al2O3 content | Application Scenarios |
Ordinary alumina ceramics | 75%-90% | Refractory materials, abrasives |
High-purity alumina ceramics | 95%-99.5% | Electronic components, bioceramics |
Ultra-high purity aluminum oxide | ≥99.9% | Semiconductor equipment, transparent ceramics |
Supports custom specifications.
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