| 摘要 |
1,195,182. Yttrium sesquicarbide. UNITED STATES ATOMIC ENERGY COMMISSION. 27 Jan., 1969 [6 Dec., 1968], No. 4468/69. Heading C1A. An yttrium sesquicarbide Y 2 C 3 having a body centred cubic crystal structure is formed by arc melting a material having a composition in the range YC 1 . 2 to YC 1 . 5 and subjecting the melted material to pressure in the range of 15-25 kilobars, and to a temperature of 1250-1350‹ C. for a period of 3-6 minutes and then temperature quenching this elevated pressure. |
