CaF2 Crystals Used in Spectroscopic Windows

Ref Price:

Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 10 Kilograms kg

Supply Capability:: 2000 Metric Tons per Month kg/month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

Detailed Product Description

CaF2 crystal

1.BV and ISO certificate

2.Credit factory, more than 20year's experience

3.Best quality and after-sale service.

Calcium Fluoride CaF2 crystals

CaF2 is a crystal with good transmission from 170 nm to 7800 nm. It is slightly soluble in water and susceptible to thermal shock. CaF2 is commonly used in IR components such as windows, lenses and prisms.

CaF2 Properties:

Calcium Fluoride is used for optical windows, lenses and prisms in transmision range 0.15-9mkm. Degradation due to to moisture in the atmosphere is minimal, and polished surfaces of the CaF2 windows may be expected to withstand several years exposure to normal atmospheric conditions.

Since they are nonaxial, CaF2 crystals do not require consideration of axial direction. Because of CaF2 low refractive index, Calcium Fluoride windows can be used without an anti-reflection coating.

Calcium Fluoride is attacked by atmospheric moisture at 600°C, where it begins to soften. The top use temperature is 800C, when moisture is not present. Irradiation of Calcium Fluoride windows causes some loss in UV transmission. CaF2 is sensitive to thermal shock.

Typical applications: VUV - UV - IR imaging systems, excimer laser windows, Spectroscopic windows and lenses. Alkor produces CaF2 windows and mirrors for European manufacturers of gas detectors and gas analyzers.

Maximum diameter of CaF2 windows by Jarvis - 220mm (8"). Jarvis manufactures vacuum UV grade CaF2 windows and lenses (193nm and 157nm) upon request.

Specifications:

1. Calcium fluoride crystal (Coating material)

Cut off wavelength 0.13~9μm

Transmissivity:90%(0.4~7μm)

Moh’s hardness: 4 Gpa

Young modulus:146.1Gpa

Density: 3.18g/cm3

Coefficient of linear expansion: 1.84 x 10-5/k

Application:

Calcium Fluoride is often used in spectroscopic windows and lenses due to its high transmission from 350nm to 7μm. Calcium Fluoride is also commonly found in cryogenically cooled thermal imaging systems. Its low absorption and high damage threshold makes it a popular choice for excimer laser optics. Calcium Fluoride's low refractive index allows it to be used without an antireflective coating. The Knoop hardness of Calcium Fluoride is 158.3.

Q: What's the stability of rare earth calcium zinc stabilizer? What are the advantages?: Rare earth with ultraviolet absorption, emission characteristics of visible light, ultraviolet radiation can reduce the destruction of PVC molecule, improve product performance or aging, can reduce the dosage of anti ageing agent under the same performance conditions, reduce costs.

Q: Method for processing rare earth ore: Is to put the outside of the feed fluid (carbonic acid rare earth mixture) into the acid dissolved inside, and now one side of the equipment is operating, the operation is relatively simple, it was difficult to manually deploy before.

Q: What's the use of rare earth? Why Japan wants to buy Chinese rare earth?: Rare earth is also the electronic, laser, nuclear, superconducting and many other high-tech lubricants. Once used in military affairs, rare earth technology will inevitably bring about a leap in military technology. In a sense, the US military's partial wars in the cold war, the backward sex control, and the unbridled and open killing of the enemy are due to the superman in the field of rare earth science and technology. In the metallurgical industry, rare earth metals or fluorides and silicides can be added to steel to play the role of refining, desulfurization, neutralization and low melting point harmful impurities, and can improve the processing performance of steel;

Q: What is the difference between a multicomponent alloy and a rare earth alloy?: The content of aluminum and aluminum is very high, and it is relatively pure aluminum. It is soft and can be rolled into various shapes. The daily use of aluminum, aluminum boxes, aluminum sheet, aluminum, aluminum, aluminum is cooked to do. An alloy consisting of two or more than two metals and metals or nonmetals synthesized by a certain method with metallic properties. Usually obtained by fusion of homogeneous liquid and solidification. According to the number of constituent elements, can be divided into two yuan alloy, three yuan alloy and multi-element alloy.

Q: What's the use of rare earth?: Rare earth materials are used as the key to many major weapons systems, it is also a lot of sophisticated industrial essential raw materials, rare earth elements have electric, magnetic, optical, biological and other properties, is an important basic material information technology, biological technology, energy technology and other high technology fields and national defense construction, at the same time on the transformation of some traditional industries, such as agriculture, chemical industry, building materials and other plays an important role

Q: Rare earth in the end what to do ah?: Military: because of its excellent photoelectric magnetic and other physical properties, and other materials composed of new materials, the performance of different varieties, the most obvious function is to greatly improve the quality and performance of other products. For example, the tactical performance of steels, aluminum alloys, magnesium alloys and titanium alloys for tanks, aircraft and missiles has been greatly improved. What's more, rare earth is also a high-tech lubricant for electronics, lasers, nuclear industry, superconductivity, and so on.Metallurgical Industry: rare earth metal silicide or fluoride, added to steel, to refining, desulfurization, and low melting point of harmful impurities, and can improve the processing performance of steel; rare earth ferrosilicon alloy, rare earth silicon magnesium alloy as spheroidizing agent in the production of rare earth nodular cast iron, ductile cast iron, because this is particularly suitable for the production of the special requirements of the complex ductile iron, are widely used in automobile, tractor, diesel engine and other mechanical manufacturing; rare earth metals added to magnesium, aluminum, copper, zinc, nickel and other non-ferrous alloys, physical and chemical properties of the alloys can be improved, and improve the mechanical properties of alloy at room temperature and high temperature.

Q: Use of rare earth? Which industries depend on him?: Rare earth metal silicide or fluoride, added to steel, to refining, desulfurization, and low melting point of harmful impurities, and can improve the processing performance of steel; rare earth ferrosilicon alloy, rare earth silicon magnesium alloy as spheroidizing agent in the production of rare earth nodular cast iron, nodular cast iron because this is particularly suitable for the production of special the complex requirements of nodular iron castings, are widely used in automobile, tractor, diesel engine and other mechanical manufacturing; rare earth metals added to magnesium, aluminum, copper, zinc, nickel and other non-ferrous alloys, physical and chemical properties of the alloys can be improved, and improve the alloy at room temperature and high temperature mechanical properties.

Q: Pink and what is the difference between rare earth polishing powder: The position of rare earth elements in the periodic table of the element is very special. The 17 elements are in the first element of the transition element series in group III, B, scandium, yttrium and lanthanum, respectively, for fourth, fifth, sixth and long cycles. The 14 elements of nature and LA are very similar, chemists can only put them in a lattice, no wonder some people regard them as "isotope" approach, but because of their different atomic numbers, also cannot be counted as true isotope. That is to say, their properties are very similar, but not exactly the same, which resulted in this group of elements is difficult to separate, but also shows that as long as the use of the very small difference, and separation is possible; on the other hand, their electronic structure has an inner electronic layer is not completely filled, namely 4f layer. Because of the difference in the number of electrons in the 4f layer, each element of the group has a very specific personality, especially the optical and magnetic properties, like a keyboard with a full range and a wide range of pianos.

Q: Why should China export rare earths at a low price?: Indium, an important raw material for LCD panels. China banned the export of rare earth, so that the Taiwan region, Japan and South Korea and other countries of the LCD manufacturers tremble with fear, the international market, the LCD facial prices rose!

We are a professional producer of Ferro Silicon Magnesium, Ferro Silicon Barium Calcium, Ferro Silicon Zirconium, Mould Inoculant and so on. With the fast development of our company, we passed ISO9001: 2008 quality management system certification and ISO14001: 2004 environmental management system certification.

1. Manufacturer Overview

Location	Shandong,China
Year Established
Annual Output Value
Main Markets	Pakistan,Spain,Korea, Brazil
Company Certifications

2. Manufacturer Certificates

a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability

a) Trade Capacity
Nearest Port	percent of export
Export Percentage
No.of Employees in Trade Department	50-100
Language Spoken:
b) Factory Information
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range