Formation of Uranium Sesquicarbide by the Partial Decarburization of Uranium Dicarbide Using Magnesium Oxide
スポンサーリンク
概要
- 論文の詳細を見る
Formation of U<SUB>2</SUB>C<SUB>3</SUB> by the reaction of UC<SUB>2</SUB> with MgO has been studied by means of chemical and X-ray analyses at temperatures 1450–1700°C <I>in vacuo</I>. The reaction was found to proceed generating CO and Mg vapor and to produce U<SUB>2</SUB>C<SUB>3</SUB>. The decarburization is represented by<BR>2UC<SUB>2</SUB>+MgO→U<SUB>2</SUB>C<SUB>3</SUB>+CO+Mg.<BR>UO<SUB>2</SUB> and UC were formed as the intermediate compounds. The amount of UO<SUB>2</SUB> was nearly equal to that formed by the reaction: UC<SUB>2</SUB>+4MgO=UO<SUB>2</SUB>+2CO+4Mg. The lattice parameter of U<SUB>2</SUB>C<SUB>3</SUB> was 8.0890 Å. The lattice parameters of UC<SUB>2</SUB> and UC varied with the reaction time. The main reaction sequence was suggested to be:<BR>1⁄4UC<SUB>2</SUB>+MgO=1⁄4UO<SUB>2</SUB>+1⁄2CO+Mg<BR>7⁄4UC<SUB>2</SUB>+1⁄4UO<SUB>2</SUB>=U<SUB>2</SUB>C<SUB>3</SUB>+1⁄2CO.<BR>The experimental results were in good agreement with those obtained by thermochemical calculation.
- 公益社団法人 日本化学会の論文