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・ Osmoy, Cher
・ Osmoy, Yvelines
・ Osmoy-Saint-Valery
・ Osmołowszczyzna
・ Osmund
・ Osmund (bishop of London)
・ Osmund (bishop of Salisbury)
・ Osmund Airy
・ Osmund Andersen Lømsland
・ Osmund Bopearachchi
・ Osmund Brønnum
・ Osmund Faremo
・ Osmund Holm-Hansen
・ Osmund Jayaratne
・ Osmund Kaldheim
Osmium borides
・ Osmium dioxide
・ Osmium hexafluoride
・ Osmium oxide
・ Osmium tetroxide
・ Osmium(IV) chloride
・ Osmo
・ Osmo Antero Wiio
・ Osmo Buller
・ Osmo Harkimo
・ Osmo Hänninen
・ Osmo Jussila
・ Osmo Kaila
・ Osmo Kontula
・ Osmo Lindeman


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Osmium borides : ウィキペディア英語版
Osmium borides

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. This has not been demonstrated yet. For example, OsB2 is hard (hardness comparable to that of sapphire), but not superhard.
==Synthesis==
Osmium borides are produced in vacuum or inert atmosphere to prevent formation
of osmium tetroxide, which is a hazardous compound. Synthesis occurs at high temperatures (~1000 °C) from a mixture of MgB2 and OsCl3.〔

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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