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透明陶瓷头罩

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

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·m^1/2) 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
	n_d@587.56 nm	1.7436
	n'_c@643.85 nm	1.7405
	n_t@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.

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.

透明陶瓷头罩咨询：13163368072