Titanium powder details about basics and application

Titanium powder overview

Titanium powder refers to the size of titanium particles less than 1mm, belongs to the loose material, its performance comprehensive characteristics of titanium matrix and powder body.  Like other powders, the properties of titanium powder include chemical properties, physical properties and technological properties.  However, titanium powder and other powders have a common physical characteristic of large specific surface, so titanium powder also has a large surface free energy.  Therefore, titanium powder is more active than titanium metal, more likely to react with other elements or compounds, more likely to be oxidized, flammable, explosive, belonging to a kind of dangerous goods.  Its purity and properties depend largely on the preparation method and technological conditions.  

Pure titanium powder application

Titanium and titanium alloy powders are usually light gray and deepen with decreasing grain size.  The coarse powder has metallic luster, the micro powder is gray, and the superfine powder is black.  Titanium dihydride powder is usually grayish brown and darker than titanium powder.  Titanium powder particle size can be artificially divided into four grades, the particle size of 1000 ~ 50um is coarse powder, 50 ~ 10um is fine powder, 10 ~ 0.5um is micro powder, less than 0.5um is ultrafine powder.  The particle shape of titanium powder is spherical, polygonal, spongy and flake, etc. The particle shape is related to the preparation method.  

Titanium powder is widely used.  Isoouter titanium powder is mainly used as grain refiner of cast aluminum and deflagration agent for fireworks and fireworks.  Grade titanium powder has different uses according to different purity and grain size. It is mainly used as the raw material of powder metallurgy to produce titanium or titanium alloy.  Other applications are as electrical vacuum inhalers, raw materials for solid mercury sources in electrical vacuum, and surface coating materials.  Plastic titanium filling agent and various titanium compounds (such as TiB2, TiN, TiC, etc.) raw materials. 

Titanium dihydride powder can be used as ceramic and metal welding reagent, pure hydrogen source material and powder metallurgy sintering catalyst, etc.

The purity of titanium powder includes titanium content and impurity content.  The purity of titanium powder is related to its size. The smaller the size of the product, the lower the purity.  Generally, titanium powder containing more than (or equal to) 99% or close to 99% is called grade (if titanium alloy powder, should include alloy composition), than its purity is called equal.  In grade titanium powder, in addition to special use requirements, the general requirements of oxygen content to grade (with titanium content is the same), that is, the lower the quality of oxygen content is higher, which is often called high quality titanium powder oxygen content is less than 0.15%.