| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to a neutron-absorbing material based on dysprosium hafnate, which contains dysprosium and hafnium oxides. The material additionally contains molybdenum trioxide, has the following component ratio, wt %: dysprosium oxide 60?70; hafnium oxide 25?35; molybdenum trioxide 3?5, and is obtained by a solid-phase synthesis at a temperature of 1500-1700°C in air. Initial components, used in dysprosium hafnate production, are in a nanostructured state with a value of coherent dispersion area less than 100 nm.EFFECT: claimed material possesses high physical efficiency, corrosion resistance, and radiation resistance and provides service term of control rods of 15 and more years.1 ex |
