借助测量Y_2Cu_2O_5-BaCuO_2混合物样品电阻的变化,研究了定向反应合成YBa_2Cu_3O_x超导化合物固相反应的动力学。反应遵循 其中α_t——t时刻的反应分数; k——反应速度常数。 研究确定反应过程是化学反应控制,反应激活能为893 kJ/(mol·K)_0Y_2Cu_2O_5-BaCuO_2二元系反应完成时间可表示如下: 1nt_1=-89.25+108781/T 对定向反应合成过程和由Y_2O_3-BaCO_3-CuO三元系混合物的合成过程的反应完成时间进行了比较。 The kinetics of the solid phase reaction of YBa_2Cu_3O_x superconducting compounds synthesized by directional reaction was studied by measuring the change of the electrical resistance of Y_2Cu_2O_5-BaCuO_2 mixture. The reaction follows the reaction fraction at time α_t - t; k - the reaction rate constant. The reaction time is controlled by chemical reaction and the reaction activation energy is 893 kJ / (mol · K) _0Y2Cu_2O_5-BaCuO_2. The completion time of the binary system can be expressed as follows: 1nt_1 = -89.25 + 108781 / T The orientation reaction synthesis process and Y_2O_3 -BaCO_3-CuO ternary mixture of the synthesis process of reaction completion time were compared.