Low Stress Calcium Fluoride

There is a positive correlation between low stress and low delay calcium fluoride. Low stress represents the consistency and uniformity of the material, but due to differences in crystal orientation, delays may vary in multiple round trips or long-distance transmissions. To obtain this material, continuous program control should be carried out in crystal raw materials, crystal growth, crystal cutting and processing, crystal precision annealing, crystal grinding and polishing, to eliminate internal thermal stress and external mechanical stress as much as possible. Therefore, products with high stress below 15NM are customized products, 15NM, 10NM, 6NM, 2NM; Machinable shapes include circular, rectangular, perforated, crescent, wedge-shaped, flat convex, flat concave, double convex, double concave, open ball, and prismatic.

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All products are provided with invoices, with a tax point of 13.

The product undergoes multiple inspections before being stored, and the quality is guaranteed. Please use it with confidence.

Spot products, shipped within 48 hours. For non stock or customized products, please consult.

International order logistics include DHL, FedEx, TNT, and EMS

When receiving the product, please ensure the integrity of the product packaging box first. If there is serious damage to the appearance, please refuse and contact us, and we will handle it for you as soon as possible.

Optical products are special items and cannot be returned or exchanged unless there is a quality issue with the product itself

If you need customization or bulk production, please contact us online and we will offer you a discounted price.

	Dia(mm)	ThK(mm)	Structure	Orientation
	Screen Reset 3-420 3-200	Screen Reset 0.5-60	Screen Reset Polycrystalline Monocrystalline	Screen Reset None <100> <110> <111>
More+ Less	3-420	0.5-60	Polycrystalline	None
Low Stress Calcium Fluorid，3-420mm，Polycrystalline Number：CaF2I004 Dia(mm)：3-420 ThK(mm)：0.5-60 Structure：Polycrystalline Orientation：None Shape：Customizable Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Material：Calcium Fluorid（CaF2） Transmission Range：0.13-10μm Density(g/cm³)：3.18 REACH：Compliant ROHS：Compliant
More+ Less	3-200	0.5-60	Monocrystalline	<100>
Low Stress Calcium Fluorid，3-200mm，Monocrystalline<100> Number：CaF2I003 Dia(mm)：3-200 ThK(mm)：0.5-60 Structure：Monocrystalline Orientation：<100> Shape：Customizable Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Material：Calcium Fluorid（CaF2） Transmission Range：0.13-10μm Density(g/cm³)：3.18 REACH：Compliant ROHS：Compliant
More+ Less	3-200	0.5-60	Monocrystalline	<110>
Low Stress Calcium Fluorid，3-200mm，Monocrystalline<110> Number：CaF2I002 Dia(mm)：3-200 ThK(mm)：0.5-60 Structure：Monocrystalline Orientation：<110> Shape：Customizable Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Material：Calcium Fluorid（CaF2） Transmission Range：0.13-10μm Density(g/cm³)：3.18 REACH：Compliant ROHS：Compliant
More+ Less	3-200	0.5-60	Monocrystalline	<111>
Low Stress Calcium Fluorid，3-200mm，Monocrystalline<111> Number：CaF2I001 Dia(mm)：3-200 ThK(mm)：0.5-60 Structure：Monocrystalline Orientation：<111> Shape：Customizable Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Material：Calcium Fluorid（CaF2） Transmission Range：0.13-10μm Density(g/cm³)：3.18 REACH：Compliant ROHS：Compliant

Material Data
Optical Properties
Transmission Range	0.13-10μm
Transmittance	>94%@193nm-7.87μm
Refractive Index	1.4288@2.5μm 1.39908@5μm
Reflection Loss	5.4%@5μm(both surfaces)
Absorption Coefficienet	7.8×10-4@2.7μm
Structure	Cubic Crystal System
Cleavage Planes	<111>
Physical Properties
Density [g/cm3]	3.18
Melting Point [℃]	1420
ThermalConductivity [W/(m×K)]	9.71 @ 293K
Thermal Expansion [10-6/K]	18.5 @ 273K
Knoop Hardness [kg/mm2]	158.3
Specific Heat Capacity [J/(kg×K)]	854
Dielectric Constant	6.76 @ 1 MHz
Young's Modulus (E) [GPa]	75.8
Shear Modulus(G) [GPa]	33.77
Bulk modulus(K) [GPa]	82.71
Poisson Coefficient	0.26
Chemical Properties
Solubility / g/L	0.016g @ 20℃
Molecular Weight / g/mol	78.0748

Low Stress Calcium Fluoride

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