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采用电阻法连续测量了铝合金液无压浸渗多孔氧化铝陶瓷预制体的渗透过程。研究结果表明，在发生渗透前，存在一个较长的孕育期。在渗透过程中，渗透距离与渗透时间的平方根定性地呈线性关系。
The permeation process of pressureless infiltration porous alumina ceramic preform was continuously measured by resistance method. The results show that there is a longer incubation period before infiltration occurs. During infiltration, the penetration distance is qualitatively linear with the square root of the infiltration time.