Zirconium
diboride (ZrB2) is an ultra-high-temperature ceramic powder. With good
high-temperature strength, it is used in the aerospace industry for hypersonic
flight or rocket propulsion. ZrB2 parts are hot pressed and machined into the
required shape. This antioxidant is commonly used to protect carbon-containing
components and extend refractory components’ service lifetimes. 3M™ Zirconium
Diboride (ZrB2) is a ceramic-based antioxidant engineered to provide superior
protection against aggressive alloys. Zirconium diboride ZrB2 possesses a
complex of unique physical and mechanical properties: high melting point,
thermal conductivity, hardness, abrasion resistance, and resistance to
aggressive environments. Zirconium diboride (ZrB2) is a transition metal boride
(TMB) that belongs to the class of ultra-high-temperature ceramics. ZrB2 has a
P6/mmm hexagonal crystal structure like several transition metal diborides.
Covalent bonds, TM-TM metallic bonds, and TM-B ionic and covalent bonds. Products
of the zirconium powder reaction with amorphous boron in a Na2B4O7 ionic melt
at 650–850°C and those of the ZrCl4 reaction with NaBH4 at 300–725°C have been
studied using X-ray diffraction, scanning electron microscopy, X-ray
photoelectron spectroscopy, thermogravimetry, and elemental analysis. At
temperature ≥750°C,
single-phase ZrB2 with a particle size of 60–80 nm is formed in a Na2B4O7 ionic
melt, whereas the ZrB2 powder obtained via the reaction of ZrCl4 with NaBH4 at
temperature ≥575°C consists of
particles differing in shape, some of which are close to spherical with a
diameter of 10–35 nm. ZrB2 is well-known in the Ultra-High Temperature Ceramics
class. The distinctive features of this class of materials make them good
selections for use in various applications such as hypersonic flights,
atmospheric re-entry vehicles, and rocket propulsion systems. Zirconium
diboride has attracted much attention because of its superior oxidation
resistance, which is a consequence of the stability of ZrO2 formed on these
materials at high temperatures in oxidizing atmospheres. If you are looking for high quality, high purity and cost-effective Zirconium
diboride, or if you require the latest price of Zirconium diboride, please feel
free to email contact mis-asia.
