Magnesium aluminate spinel (MgAl₂O₄)
Keywords:
- Product Introduction
- Key advantages
- Application areas
- Product Features
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- Commodity name: Magnesium aluminate spinel (MgAl₂O₄)
I. Main Advantages
1. Ultra-wide optical transmission band
2. No birefringence, with excellent optical homogeneity.
3. High mechanical strength, wear-resistant and impact-resistant
4. Excellent high-temperature resistance and extremely high chemical stability
5. High thermal conductivity and high laser damage threshold
6. Capable of producing large-size, high-purity transparent ceramics.II. Application Areas
1. Military Industry/Defense (Core)
2. High-Power Lasers and Optoelectronic Devices
3. Semiconductors and Vacuum Equipment
4. Infrared Sensing and Precision Optics
5. Industrial and Specialized Structural Materials
III. Performance SpecificationsParameter item Indicator value Chemical formula MgAl₂O₄ Crystal structure Cubic crystal system (isometric), space group Fd-3m Molar mass 142.27 g/mol Density Single crystal: 3.58 g/cm³; Transparent ceramic: 3.55–3.58 g/cm³ Mohs hardness 8 Melting point 2135℃ Lattice constant a = 8.08 Å Refractive index (n_d) ~1.718 (589.3 nm visible light) Abbe number ~5.8 Product Processing Specifications
Effective aperture > 90% Dimensional tolerance (W±0.05 mm) × (H±0.05 mm) × (L±0.1 mm) Protective Chamfer ≤0.2×45° Surface finish 20-10 S-D Flatness ≤λ/8@632.8nm Wavefront distortion ≤λ/4@632.8nm Parallelism < 30" Perpendicularity ≤15' Chipped edge < 0.1mm Coating Customized to customer specifications
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