Zirconium disilicide ZrSi2

product information:
Name: Zirconium Disilicide
Purity: ≥99.5 single phase


Properties: gray powder


Melting point: 1620°C


Density: 4.88g/cm3

Uses: Mainly used in cermets, high-temperature anti-oxidation coatings, high-temperature structural materials, aviation, aerospace and other fields.

Properties: gray square crystalline powder


Density (g/mL. 25"C): 4. 88


Melting point (oC): 1620


Lattice constants: a=0.372nm, b=1.476nm, c=0.367m.


Microhardness (kg/mm2): 1063


Heat of formation (kJ/mol): 62.8


Function and use: Used as fine ceramic raw material powder, used to produce crucibles for semiconductor thin film production,


Carbon ceramic brake pads, brake discs. The mass parts of zirconium disilicide is 10-15%. Take this mass


Zirconium disilicide is added to the ceramic matrix composite material. It can significantly reduce the sintering temperature of the material preparation.


Research on Elasticity and Anisotropy of Zirconium Silicide


The compound formed by metal and silicon is metal silicide, and metal silicide is divided into two categories:


1Refractory metal silicide, refers to the silicide of elements in groups IVB, VB. VIB of the periodic table, such as titanium silicide,


Zirconium silicide, tantalum silicide, tungsten silicide, etc., 2 noble metal and near-noble metal silicide, silicide target,


Platinum silicide, cobalt silicide, etc., for a while, metal silicide is a relatively hard material.


Like metal, it has metallic luster, high conductivity, and positive humidity coefficient, in most cases


It is magnetic, refractory metal silicide has a higher melting point, hardness and compressive strength, high temperature


High creep strength, medium density and tensile strength, and good temperature mechanical properties. Metal


The reaction with silicon reduces the activity of the metal, so the chemical stability of the silicide is quite good,


Refractory metal silicides with high silicon content have good room and high temperature corrosion resistance and oxidation resistance. The disadvantages of metal silicides are: brittle at room temperature, low impact toughness, and insufficient thermal shock resistance. .


The physical and chemical properties of metal silicides make them have many uses. First of all,


As a high-temperature structural material, silicide has a good application prospect in aviation, aerospace and chemical industry.


It has been used as a high-temperature anti-oxidation coating, magnetic material, integrated circuit electrode film and other functional materials.


Extensive research and application, for example, Fe2Si ordered alloy has excellent soft magnetic properties,


It is widely used in audio, video and card reader head materials; there are silicides into V2Si, CoSi2,


Mo2Si, due to its excellent electrical conductivity, V2Si is the first superconducting A15 phase found, and its critical transition temperature is 17.1K; MoSi2 due to its excellent electrical conductivity and excellent oxidation resistance,


It is widely used as heating element of high temperature electric furnace and high temperature anti-oxidation coating for aerospace. Similarly,


Metal silicide plays a very important role in the manufacture of electronic devices, due to the resistance ratio of silicide


Polysilicon has low resistance, and the interface between the silicide and the silicon substrate is atomically clean, with good compatibility. It is widely used as a Schottky barrier and interconnect material in the manufacturing of microelectronics.