透明陶瓷头罩
Transparent Ceramic Dome
产品规格
Product Specifications
|
最大口径 Maximum aperture (mm) |
壁厚 Wall thickness (mm) |
|---|---|
| Ø250 | ≤ 15 |
*其他尺寸可依图定制
Other sizes can be manufactured to customer drawings upon request
性能特点
Performance Characteristics
- 光学各向同性 Optical isotropy
- 可见光、激光、中波红外透明性优异 Excellent transparency to visible light, laser, and mid-wave infrared
- 低介电常数、低介电损耗，毫米波透明 Low dielectric constant and low dielectric loss, transparent to millimeter waves
- 高强度、高硬度 High strength and high hardness
- 低热膨胀系数、高热导率 Low coefficient of thermal expansion and high thermal conductivity
- 耐砂石冲击、耐盐雾腐蚀 Resistant to sand and stone impact, salt spray corrosion
- 抗强冲击及热/力载荷 Resistance to strong impact and thermo-mechanical loads
- 材料加工性能显著优于蓝宝石，允许复杂形状 The machinability significantly superior to that of sapphire, allowing complex shapes
应用场景
Applications
- 导引头头罩 Seeker domes
- 激光雷达头罩 LiDAR windows
- 摄像头头罩 Camera covers
- 深海耐压窗口 Pressure-resistant windows
性能指标
Typical property parameters
| 项目 | 数值 | |
|---|---|---|
|
杨氏模量 (GPa) Young's modulus |
300 | |
|
泊松比 Poisson's ratio |
0.26 | |
|
弯曲强度 (MPa) Flexural strength |
460 | |
|
断裂韧性 (MPa·m1/2) Fracture toughness |
2.56 | |
|
维氏硬度 (GPa) Vickers hardness |
16.05 | |
|
光学透过范围 (μm) Optical transmission range |
0.2–6.0 | |
|
光学折射率
Refractive index
|
n'F@479.99 nm | 1.7525 |
| nd@587.56 nm | 1.7436 | |
| n'c@643.85 nm | 1.7405 | |
| nt@1013.98 nm | 1.7299 | |
|
阿贝数 Abbé number |
62.2 | |
|
雾度 (t = 8 mm) Haze |
< 1% | |
|
介电常数（@24–77 GHz） Dielectric constant |
8.75 | |
|
介电损耗（@24–77 GHz）×10⁻⁴ Dielectric loss |
2.90 | |
|
介电强度 (KV/mm) Dielectric strength |
66.32 | |
|
体积电阻率 (×10¹⁴ Ω·cm) Volume electrical resistivity |
1.62 | |
|
比热容（@25°C）J/(g·°C) Specific heat capacity |
0.95 | |
|
热导率（@25°C）W/(m·K) Thermal conductivity |
15.80 | |
|
热膨胀系数（25–500°C）×10⁻⁶ K⁻¹ Thermal expansion coefficient |
7.36 | |
透过率曲线
Transmittance Curve
本公司5mm厚透明陶瓷球罩直线光学透过率
The in-line transmittance curve of the 5mm-thick transparent ceramic dome produced by the HYNM Company.
The in-line transmittance curve of the 5mm-thick transparent ceramic dome produced by the HYNM Company.
本公司透明陶瓷镀增透膜产品的光学直线透过率
The in-line transmittance curve of AR-coated transparent ceramic produced by the HYNM Company.
The in-line transmittance curve of AR-coated transparent ceramic produced by the HYNM Company.
