Osmium borides (original) (raw)
Osmium borides are compounds of osmium and boron. Their most remarkable property is potentially high hardness. It is thought that a combination of high electron density of osmium with the strength of boron-osmium covalent bonds will make osmium borides superhard materials, however this has not been demonstrated yet. For example, OsB2 is hard (hardness comparable to that of sapphire), but not superhard.
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dbo:abstract | Osmium borides are compounds of osmium and boron. Their most remarkable property is potentially high hardness. It is thought that a combination of high electron density of osmium with the strength of boron-osmium covalent bonds will make osmium borides superhard materials, however this has not been demonstrated yet. For example, OsB2 is hard (hardness comparable to that of sapphire), but not superhard. (en) Les borures d'osmium sont les composés inorganiques de l'osmium et du bore. On en connaît trois : OsB, Os2B3 et OsB2. Ils sont remarquables pour leur dureté élevée : la combinaison de la forte densité d'électron de l'osmium et de la force des liaisons covalentes bore-osmium les rapproche de la catégorie des matériaux superdurs, l'appartenance n'ayant pas encore été prouvée. Par exemple, OsB2 est dur (dureté comparable à celle du saphir), mais pas superdur. (fr) ホウ化オスミウム(Osmium boride、OsBx)は、オスミウムとホウ素の化合物である。最も顕著な性質は、非常に高い硬度である。オスミウム原子の電子密度の高さと、オスミウムとホウ素の間の強い共有結合により、超硬度材料になっていると考えられているが、まだ証明されてはいない。例えば、OsB2は、サファイアに匹敵する硬さだが、超硬度材料ではない。 (ja) Диборид осмия — бинарное неорганическое соединениеосмия и борас формулой OsB2,кристаллы. (ru) 硼化锇是锇和硼的化合物。它们最显着的特性是潜在的高硬度。人们认为锇的高电子密度和硼-锇共价键的强度会使锇硼化物成为超硬材料,但这仍未得到证实。例如,OsB2很坚硬(硬度与蓝宝石相若),但不足以称得上超硬材料。 (zh) |
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rdfs:comment | Osmium borides are compounds of osmium and boron. Their most remarkable property is potentially high hardness. It is thought that a combination of high electron density of osmium with the strength of boron-osmium covalent bonds will make osmium borides superhard materials, however this has not been demonstrated yet. For example, OsB2 is hard (hardness comparable to that of sapphire), but not superhard. (en) Les borures d'osmium sont les composés inorganiques de l'osmium et du bore. On en connaît trois : OsB, Os2B3 et OsB2. Ils sont remarquables pour leur dureté élevée : la combinaison de la forte densité d'électron de l'osmium et de la force des liaisons covalentes bore-osmium les rapproche de la catégorie des matériaux superdurs, l'appartenance n'ayant pas encore été prouvée. Par exemple, OsB2 est dur (dureté comparable à celle du saphir), mais pas superdur. (fr) ホウ化オスミウム(Osmium boride、OsBx)は、オスミウムとホウ素の化合物である。最も顕著な性質は、非常に高い硬度である。オスミウム原子の電子密度の高さと、オスミウムとホウ素の間の強い共有結合により、超硬度材料になっていると考えられているが、まだ証明されてはいない。例えば、OsB2は、サファイアに匹敵する硬さだが、超硬度材料ではない。 (ja) Диборид осмия — бинарное неорганическое соединениеосмия и борас формулой OsB2,кристаллы. (ru) 硼化锇是锇和硼的化合物。它们最显着的特性是潜在的高硬度。人们认为锇的高电子密度和硼-锇共价键的强度会使锇硼化物成为超硬材料,但这仍未得到证实。例如,OsB2很坚硬(硬度与蓝宝石相若),但不足以称得上超硬材料。 (zh) |
rdfs:label | Borure d'osmium (fr) ホウ化オスミウム (ja) Osmium borides (en) Диборид осмия (ru) 硼化锇 (zh) |
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