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Huizhou Tian Yi Xi You Cai Liao Co.,Ltd
TYR since from 2004 year supplying rare earth material, sputtering target and vacuum evaporation thin film coating material
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Barium fluoride, BaF2 crystal pieces optical thin film coating material, CAS ID 7787-32-8

Barium fluoride, BaF2 crystal pieces optical thin film coating material, CAS ID 7787-32-8

Brand Name : TYR
Model Number : CaF2-Crystal
Place of Origin : CHINA
MOQ : 1 piece
Price : USD$250
Payment Terms : T/T, Western Union
Supply Ability : 500 kgs per month
Delivery Time : 10-15 days
Packaging Details : vacuum packing per kgs
Material : BaF2
Color : crystalline
Purity : 99.99%
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Barium fluoride, BaF2 crystal thin film coating material
BaF2is relatively hard but is highly sensitive to thermal shock. For its transmission range is 0.2 μm - 11 μm, the material is widely used for making optical windows, lenses and prisms in UV-IR spectra. Besides it can also be used as substrate for some applications. BaF2is less resistant to attack by water than CaF2. Pronounced water attack occurs at 500 °C, but in a dry environment the material can be used up to 800 °C. BaF2is grown by modified Bridgman technique. Maximum available size: Dia 200 mm x Thickness 50 mm. In addition, BaF2 is usually used as scintillator for gamma detection. It is the fastest scintillating crystals up to now.
BaF2 crystals have the following exceptional properties that make it a very important optics single crystal:
(1) High optical transmittance from the ultraviolet to the far-infrared spectrum region(0.18-12μm).
(2) Used for Optical prisms, lenses, wedges, windows, other optical components, and etc.
Main Specifications:
Maximum Size
Single Crystal: φ100×100 mm
Poly Crystal:φ200×100 mm (3 ~7 boundaries)
Dimension Tolerance
± 0.1mm
Flatness Tolerance
λ~ λ/10 at 632.8 nm over central 90% of edge dimensional
Parallelism
±1 arc sec ~ ±3 arc min
Surface Quality (Scratch/Dig)
10/5

Physical and Optical Properties:
Transmission Range (mm)
0.15 ~12.5
Refractive Index (within 0.26~12.00 mm)
1.5122~1.3703
Reflection Loss at 10.35 mm
5.3% (2 surfaces)
Absorption Coefficient at 6mm (cm-1)
3.2×10-4
Density (g/cm3)
4.89 at 20°C
Melting Point (°C)
<1280
Thermal Conductivity at 286K (Wm-1K-1)
11.72
Thermal Expansion at 273K (K-1)
18.1×10-6
Knoop Hardness
82kg/mm2
Hardness (Mho)
3
Specific Heat (J Kgm-1K-1)
410
Dielectric Constant at 1MHz
7.33
Elastic Coefficients
C11= 89.2 C12 = 40.0 C44= 25.4
Apparent Elastic Limit (Mpa)
26.9 (3900psi)
Possion Ratio
0.343
Solubility in 100g water at 23°C (g)
0.17
Crystal type
cubic, Class m3m
Cleavage
(111)

High Pure Fluoride Evaporation (deposition) Material


Shape: shots,pellets,pieces,granules,rods,tablets

Spec.:

Tablets: 8mm dia. X 5mm L, 10mm dia. X 5mm L, 20mm dia. X 8mm L e.t.c

Pieces, Granules: 1-2.5mm, 3-6mm, 3-8mm, 1-3mm, 3-12mm e.t.c


Material NameFormulaPurityForm
Aluminum FluorideAlF399.9%Ceramic, Crystal
Yttrium FluorideYbF399.99%Ceramic
Lanthanum FluorideLaF399.99%Ceramic
Yttrium FluorideYF399.9%Ceramic
Cerium FluorideCeF399.99%Ceramic
Magnesium FluorideMgF299.99%Crystal
Praseodymium FluoridePrF399.9%Ceramic
Barium FluorideBaF299.99%Ceramic, Crystal
Lithium FluorideLiF99.99%Crystal
Sodium FluorideNaF99.9%Ceramic, Crystal
Strontium FluorideSrF299.9%Ceramic
Lead FluoridePbF299.99%Ceramic, Crystal
Erbium FluorideErF399.9%Cerami


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