根据电磁理论及微/纳米尺度热波模型,建立了粉末电场活化烧结过程中温度场-电场耦合控制方程,利用有限元方法对纯钛粉试样电场活化烧结中的热电效应进行了数值模拟,得到电场活化烧结过程中模冲、阴模及试样内的电流密度、焦耳热及温度场分布.结果表明:电场活化烧结过程中存在较大的升温速率和径向温度梯度,电流密度的分布对焦耳热、温度场的分布有较大影响.实测温度值与有限元计算值变化趋势基本一致.
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