new material
Large-size barium fluoride (BaF₂) is a high-performance optical material recognized for its superior transmission across ultraviolet, visible, and infrared wavelengths. Manufactured from high-purity BaF₂, it offers outstanding durability, excellent thermal stability, and strong resistance to environmental degradation. Its large dimensions enable enhanced optical performance in laser systems, spectroscopy, aerospace applications, and scientific instrumentation, ensuring optimal light transmission and precise optical manipulation for advanced technologies.
Product Overview:
Large Size Barium Fluoride is an optical material known for its outstanding performance, especially in the manufacturing of large optical components and devices. With its high transparency and low scattering characteristics, BaF₂ is widely used in optical systems operating within visible and infrared spectrums. It offers high transmission, low reflection loss, and superior stability, making it an essential material in infrared imaging systems, laser optics, aerospace optics, and other high-performance optical applications.
Key Features:
- High Transparency:BaF₂ exhibits near 90% transmission in both visible and infrared spectrums, making it ideal for advanced optical applications.
- Customizable Large Sizes:It can be processed into large sizes, typically over 120mm, meeting the specific demands of complex optical systems.
- Excellent Machining Performance:It is easily machined to achieve high-precision shapes and surface finishes, ensuring high-quality optical elements.
- Low Refractive Index:BaF₂ has a lower refractive index compared to many other optical materials, reducing transmission losses due to Fresnel reflection.
- High Mechanical Stability:Suitable for optical systems requiring high mechanical strength and stability, particularly in harsh environments.
Applications:
- Optical Instruments:BaF₂ is extensively used in low-temperature cooled imaging systems, aerospace optical systems, laser optics, and other advanced optical components, including lenses, beam splitters, filters, prisms, and windows.
- Infrared Imaging:Particularly suited for infrared optical and thermal imaging systems, with significant potential for advanced applications.
- Laser Technology:Used in laser systems as lenses and window materials, ensuring efficient optical transmission and minimal loss.
- Aerospace and Military Applications:Widely used in spacecraft, satellites, and military equipment, providing high-precision optical performance and stability under extreme conditions.
| Optical Property | Value |
| Transmission Range | 0.15-14 μm |
| Transmittance | >94%@0.35nm-10.8μm |
| Refractive Index | 1.462@2.58μm, 1.45@5μm |
| Reflection Loss | 6.8%@2.58μm (both surfaces) |
| 6.5%@5μm (both surfaces) | |
| 5.3%@10.35μm (both surfaces) | |
| Absorption Coefficient | 3.2×10⁻⁴@6μm |
| Structure | Cubic Crystal System |
| Cleavage Planes | <111 |
| Physical Property | Value |
| Density | 4.89 g/cm³ |
| Melting Point | 1386 ℃ |
| Thermal Conductivity | 11.72 W/(m·K) @ 286K |
| Thermal Expansion | 18.1×10⁻⁶/K @ 273K |
| Knoop Hardness | 82 kg/mm² |
| Specific Heat Capacity | 410 J/(kg·K) |
| Dielectric Constant | 7.33 @ 1 MHz |
| Young's Modulus | 53.07 GPa |
| Shear Modulus | 25.4 GPa |
| Bulk Modulus | 56.4 GPa |
| Poisson's Coefficient | 0.343 |
| Chemical Property | Value |
| Solubility | 1.7 g/L @ 20℃ |
| Molecular Weight | 175.3238 g/mol |
| Property | Value |
| Material Name | Large Size BaF₂ Crystals |
| Available Size | 3-300mm |
| Material Grade | VIR, UV |
| Transmittance Range | 0.15-14μm |
| Crystal Structure | Monocrystalline, Polycrystalline |
| Orientation | <111>, <100>, <200> |
| Blank Shape | Round, rectangular, wedge, lens, step drilled, special-shaped |
