ZrN Zirconium Nitride powder
  • ZrN Zirconium Nitride powderZrN Zirconium Nitride powder

ZrN Zirconium Nitride powder

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Product Description

Chinese name: zirconium nitride

English name: Zirconium nickel (ZrN)

Molecular weight: 105.23

Molecular formula: ZrN

CAS number: 25658-42-8

Melting point: (2980+/-50) ℃

Density: 7.09

Molecular weight: 105.23

Accurate molecular weight: 103.90800

The microhardness is approximately 9800~19600MPa

EINECS number: 247-166-2

MDL number: MFCD00049642

Solubility: Soluble in concentrated hydrofluoric acid, concentrated sulfuric acid, and hot alkali, slightly soluble in dilute hydrochloric acid and dilute sulfuric acid.

Synthetic preparation method:

1. Directly nitriding metal zirconium with nitrogen at a temperature of 1100~1200 ℃.

2. Use the zirconium tetrachloride method. Zirconium nitride is prepared with zirconium tetrachloride and ammonia as raw materials, and the reaction formula is as follows. Zirconium tetrachloride first forms adduct with ammonia, and then is heated to 750 ℃ to convert into zirconium tetranitride (Zr3N4), and further heated to 1200 ℃ to convert into zirconium nitride (ZrN). Zirconium nitride can also be prepared from zirconium tetrachloride and ammonia in the presence of hydrogen at a temperature above 1000 ℃.

Use of zirconium nitride:

1) Zirconium nitride has good neutron properties, thermophysical properties and chemical stability under high temperature environment,

It has a high melting point and is one of the material selection requirements of the IMF for the fourth generation nuclear fission system.

(Zr-N) compounds have a variety of crystal structures with the change of composition. For example, in the Zr-N alloy system, the discovered alloy compounds include ZrN, o-Zr ∨ N ₄, c-Zr ∨ N ₄. They not only have excellent chemical properties, but can be used not only in Josephson junctions, diffusion layers, low temperature thermometers, etc., but also in three-dimensional integrated wire coils and metal based transistors. At the same time, these Zr-N compounds are superior to pure zirconium in terms of wear resistance, oxidation resistance, and corrosion resistance, and have a high superconducting critical temperature, so they may become good superconductors with high practical value.

2) Zirconium nitride is mainly used as the alloy material for the protective layer of the atomic energy industrial reactor, the high-temperature resistant alloy material of the aerospace rocket engine nozzle, the alloy material of the artillery missile, and the corrosion resistant material for the production of petrochemical reductive chloride reactor or container. It is also widely used in the industrial field, such as as as the automobile trim, The anti-corrosion and decorative layers of communication devices such as mobile phones and digital products such as cameras, as well as the diffusion barrier layer of circuit devices.

3) The application of zirconium nitride in other fields mainly includes: according to its excellent electrical conductivity, it can be used as an electrical contact layer in the electronic industry; according to its low friction coefficient and good sliding performance, it can be used as a composite layer in tribology.

4) Used for preparing metallic zirconium and zirconia. It is also used for manufacturing hot pressing crucibles, refining metal aluminum, bismuth, cadmium, lead, tin, and serving as acid storage containers.

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