Product name: High Purity Yttrium Metal

Chemical formula: Y

CAS number: 7440-65-5

EINECS number: 231-174-8

Purity: 99.9%-99.99%

Color: silver gray

Atomic weight:88.91

Atomic number: 39

Melting point: 1522°C

Boiling point: 3338°C

Density: 4.47 g/cm3

Production standard: XB/T 218-2016

Shape: pieces, powder, sheet, wire, rod, foil or according to customer requirements

Packaging: packed in iron drum, lined with single/double plastic bags and filled with argon for protection or according to customer's requirements.

 

 

Yttrium is the first rare earth element discovered by humans and one of the most abundant rare earth elements in the earth's crust. The content of yttrium in the earth's crust is about 0.0028%. It mainly exists in beryllium yttrium ore, black rare gold ore and xenotime, and also exists in monazite and bastnasite. Yttrium also exists in nuclear fission products, and all yttrium present in nature is the stable isotope yttrium-89. Yttrium is mainly distributed in countries such as China, the United States, Australia, India, Malaysia and Brazil, of which more than 40% is concentrated in China.

 

 

Metallic yttrium is a silvery metallic luster solid that can exist stably in the air. It usually has a valence of +3. It exists in large amounts in the form of yttrium oxide and is malleable. It can react with hot water, and white yttrium trioxide can be dissolved in acid to form the corresponding white salt; yttrium can form stable chelates with various aminocarboxylic complexing agents.

 

Although yttrium is not a lanthanide element, the yttrium element always coexists with rare earth elements because its ion radius is similar to that of rare earth elements and its chemical properties are similar to those of rare earth elements. Yttrium is more abundant in the rare earth element family and is the most widely used member of the heavy rare earth family.

 

 

Industrially, solvent extraction or ion exchange is used to separate and purify yttrium from monazite and bastnasite. Yttrium metal can be prepared by reducing yttrium fluoride with calcium.

 

 

Yttrium is widely used in industry. It can be used as yttrium phosphor to produce red color on TV screens. It is also used in filters for certain rays, superconductors, superalloys and special glasses. Yttrium is resistant to high temperatures and corrosion, and can be used as a cladding material for nuclear fuel. Yttrium and various aminocarboxylic complexing agents can form stable chelates; neodymium-containing yttrium aluminum garnet is an excellent laser material, yttrium iron garnet is an excellent laser material, and yttrium iron garnet and yttrium aluminum garnet are new magnetic materials. Material. Yttrium is also used in electrodes, electrolytes, electronic filters, lasers and superconductors, and has numerous medical and materials science applications. Yttrium has no known biological uses and human exposure to the element can cause lung disease.

 

Garnet

Yttrium can be used to produce a variety of synthetic garnets. Yttrium iron garnet (Y3Fe5O12, referred to as YIG) is a very effective microwave electronic filter, and yttrium oxide is required for its production. Yttrium, iron, aluminum and gadolinium garnets (such as Y3(Fe,Al)5O12 and Y3(Fe,Ga)5O12). Garnet has important magnetic properties. Yttrium iron garnet is a highly efficient acoustic energy emitter and sensor.

Yttrium aluminum garnet (Y3Al5O12, YAG for short) is a type of crystal material with a wide range of uses. Its Mohs hardness is 8.5 and can be used as gemstones and jewelry (artificial diamonds). Cerium-doped yttrium aluminum garnet (YAG:Ce) crystals can be used in phosphors for white light-emitting diodes. Neodymium-doped yttrium aluminum garnet has good optical uniformity, high mechanical strength, high thermal conductivity, good laser performance and mature growth process. It can achieve continuous pulse operation at room temperature. It is currently the most commonly used laser crystal among solid laser materials. It is widely used in laser drilling and welding, laser ranging, and medical laser scalpels. There have been experiments in dogs using neodymium-doped yttrium aluminum garnet laser to perform prostatectomy. The surgery was assisted by a robot, which can reduce damage to peripheral nerves and other tissues. Erbium-doped yttrium aluminum garnet is beginning to be used in microdermabrasion cosmetic surgery. Yttrium aluminum garnet, yttrium oxide, lithium yttrium fluoride (LiYF4) and yttrium orthovanadate (YVO4) can be used in near-infrared lasers. Available dopants include neodymium, erbium and ytterbium. Yttrium aluminum garnet lasers can operate at high power and can be used in metal drilling and cutting. Individual yttrium aluminum garnet crystals are generally produced via the Czochoraski process. In addition, yttrium aluminum garnet is also used as a fluorescent material. For example, green phosphors with terbium as the activator and yttrium aluminum gallium garnet as the main matrix are used in projection TVs.

 

Yttrium alloy

Yttrium metal is an excellent purifier and modifying additive for non-ferrous metals such as magnesium, aluminum, and titanium. Adding small amounts of yttrium (0.1% to 0.2%) can reduce the grain size of chromium, molybdenum, titanium and zirconium. It can also enhance the material strength of aluminum and magnesium alloys. Adding yttrium to the alloy can reduce the difficulty of the processing procedure, make the material resistant to high-temperature recrystallization, and greatly improve the alloy's resistance to high-temperature oxidation. Yttrium-magnesium alloy has good high-temperature mechanical properties and excellent high-temperature oxidation resistance, and can be used as structural materials in aerospace, household appliances, and robots. Rare earth silicon iron magnesium master alloy is a spheroidizing agent for the production of ductile milled cast iron. If yttrium is used as a spheroidizing agent, yttrium can make graphite form compact nodules instead of flakes, thereby increasing ductility and fatigue resistance. The cast iron produced in this way has It has high ductility and is especially suitable for the production of large-section ductile iron castings for turbine main shafts.

 

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