Zirconium diboride

Zirconium diboride (ZrB₂) is a highly covalent refractory ceramic material with a hexagonal crystal structure. ZrB₂ is an ultra high temperature ceramic (UHTC) with a melting point of 3246 °C. This along with its relatively low density of ~6.09 g/cm (measured density may be higher due to hafnium impurities) and good high temperature strength makes it a candidate for high temperature aerospace applications such as hypersonic flight or rocket propulsion systems. It is an unusual ceramic, having relatively high thermal and electrical conductivities, properties it shares with isostructural titanium diboride and hafnium diboride.

单词	Zirconium diboride
释义	Zirconium diboride 英语百科 Zirconium diboride Zirconium diboride (ZrB₂) is a highly covalent refractory ceramic material with a hexagonal crystal structure. ZrB₂ is an ultra high temperature ceramic (UHTC) with a melting point of 3246 °C. This along with its relatively low density of ~6.09 g/cm (measured density may be higher due to hafnium impurities) and good high temperature strength makes it a candidate for high temperature aerospace applications such as hypersonic flight or rocket propulsion systems. It is an unusual ceramic, having relatively high thermal and electrical conductivities, properties it shares with isostructural titanium diboride and hafnium diboride.
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