Boron suboxide

Boron suboxide

Chembox new
IUPACName = Boron suboxide
OtherNames = None
Section1 = Chembox Identifiers
CASNo = ?
Section2 = Chembox Properties
Formula = B6O
MolarMass = 80.865 g/mol
Appearance = Reddish icosahedral twinned crystals
Density = ?
MeltingPt = ?

Boron suboxide (chemical formula B6O) is a solid compound of boron and oxygen. Unusually, it forms icosahedral particles, which are neither single crystals nor quasicrystals, but twinned groups of twenty tetrahedral crystals. It is extremely hard, and is believed to be one of the hardest substances in the world, after aggregated diamond nanorods, ultrahard fullerite, diamond and cubic boron nitride.

See also

* Suboxide
* Heterodiamond
* Beta carbon nitride

External links

* http://www.nsf.gov/news/mmg/mmg_disp.cfm?med_id=51913&from=img
* http://researchmag.asu.edu/stories/hardstuff.html
* [http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=APPLAB000081000004000643000001 Boron suboxide: As hard as cubic boron nitride]


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