| 摘要 |
PURPOSE:To easily obtain diamond under mild conditions by oxidizing metal and metalloid carbides at a prescribed temp. under a prescribed partial pressure of oxygen. CONSTITUTION:The carbides of groups IVa, Va, VIa, VIIa and VIII metals of the periodic table, B, Si, Al, etc., are prepd. and oxidized at 300-1,000 deg.C in an atmosphere under 0.5-15 KPa partial pressure of oxygen. |
