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ZrH2 Zirconium Hydride Powder
Properties of zirconium hydride
English name: zirconium hydride/zirconium dihydride
molecular weight ZrH2
molecular weight 93.24
zirconium hydride chemical ZrH2, density 5.6g/cm3, was prepared in the same
manner as titanium hydride, hydrogenation temperature is usually 900 it is a
stable powder stable to air and water under normal conditionsIt can violently
with antioxidant and acid reaction, it can smoothly in ignition burning, in 300
starts to break down in a vacuum, in 500-700 complete decomposition zirconium
hydride appearance is metal, black powder generated heat 124 kj/mol, and
electrical conductivity between metals and semiconductors, 10-3 when pressure
is 1.33 pa in the 400 release of hydrogen for metal and weak acid to water,
under normal circumstances is not reaction, soluble in 1% ~ 5% of hydrofluoric
acid in it can react violently with oxidant and acid to be ignited, burning The
purpose of zirconium hydride
Zirconium hydride is used for fireworks flux and ignition agent in the industry,
used in nuclear reactors as the moderator, getter in the vacuum tube, also
used in metal - ceramic seal hydrogenated titanium and zirconium hydride
industry has a ton of generation and supply, but it is mainly used for military
purposes zirconium hydride as a strong reductant used as additive in preparation
of ferroalloy deoxidizer and desulphurizer is mixed with calcium carbide and
nitride, can be used as a metal coating because can infiltrate ceramic, look
for metal - ceramic binder, used for vacuum tube and ceramic componentsIn
addition, it is used as neutron reductor and other materials of nuclear power
station, getter for vacuum tube, fire trap and flux, etc. Its application examples
are as follows:
1) Preparation of a kind of zirconium hydride surface hydrogen resistance coating.
2) preparation of a spray powder, including aluminum powder zirconium hydride
powder and boron carbide powder.
3) preparation of a touch screen silver paste.