PAM XIAMEN offers LiF Lithium Fluoride Crystal.

LiF crystal has excellent VUV region transmittance. It is used for windows, prisms, and lenses in the visible and infrared in 0.104 μm – 7 μm. LiF crystal is sensitive to thermal shock and would be attacked by atmospheric moisture at 400°C. In addition irradiation produces color centers. Modest precautions should be taken against moisture and high energy radiation damage. Besides LiF softens at 600°C and is slightly plastic that can be bent into radius plates. The material can be cleaved along (100) plane and less commonly (110) plane. The optical characteristics are good and yet the structure is not perfect and cleavage is difficult. For good structure LiF is less commonly grown by the Kyropoulos method (air-grown) specifically for monochromator plates. High quality LiF is usually grown by modified Bridgman method. Browse our lithium crystals for sale below.

Properties and Specifications:
Transmission Range  (µm) 0.105 ~ 6
Refractive Index at 0.6 µm 1.37327 @2.5 µm; 1.624 @0.121 µm
Reflection Loss at 0.6 µm 4.4% @4.0 µm
Absorption Coefficient at 2.7µm  (cm-1) 0.74×10-3
Density  (g/cm3) 2.639
Melting Point  (°C) 870
Thermal Conductivity at 314K  (Wm-1K-1) 4.01
Thermal Expansion at 283K  (K-1) 37×10-6
Knoop Hardness 102 – 113 with 600g indenter
Dielectric Constants 9.0 @25°C, f = 100 – 109 Hz
Specific Heat Capacity 1562
(J Kgm-1K-1)
Elastic Coefficient C11=112; C12=46; C44= 63.5
Apparent Elastic Limit 11.2 MPa (1620 psi)
Poisson Ratio 0.326
Solubility in 100g water at 20°C (g) 0.27
Cleavage -100
Sizes 145 mm, 200 mm, custom sizes are available

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Found in 1990, Xiamen Powerway Advanced Material Co., Ltd (PAM-XIAMEN) is a leading manufacturer of semiconductor material in China.PAM-XIAMEN develops advanced crystal growth and epitaxy technologies, manufacturing processes, engineered substrates and semiconductor devices.PAM-XIAMEN’s technologies enable higher performance and lower cost manufacturing of semiconductor wafer.

Our goal is to meet all of your requirements, no matter how small orders and how difficult questions they may be,
to maintain sustained and profitable growth for every customer through our qualified products and satisfying service.

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