建立了高温自润滑微孔预制体的孔结构模型，并得到了适用于不同堆积模式的平均孔径和孔径分布的计算公式；通过模仿生物体汗腺结构设计并制备了高温自润滑微孔预制体，测量了其平均孔径和孔径分布并验证了体心立方堆积模式下的计算公式。结果表明：平均孔径和孔径分布的计算值和试验值基本吻合，由孔结构模型推导的平均孔径和孔径分布的计算公式可以较好地描述孔径大小和孔径分布等参数；随着烧结温度的升高，微孔预制体的平均孔径和孔径分布区间减小；随原料 TiC 和 M2粉末平均粒径的减小，其预制体的平均孔径和孔径分布区间也相应减小。
The pore structure model of high temperature self-lubricating microporous preform was established,then the calculation formulas for average pore size and pore size distribution were derived,which was suitable for different accumulated modes.Based on organism sweat gland-like structure,the high temperature self-lubricating microporous preform was designed and prepared.The average pore size and pore size distribution of the preform were tested,and then used to verify the calculation formula under body centred cubic packed conditions. The results show that the calculated results for average pore size and pore size distribution agreed well with the measured results,indicating that the calculation formula deduced from the pore structure model can be used to describe the pore size and pore size distribution;with the increase of sintering temperature,the average pore size and range of pore size distribution decreased;when the average size of TiC and M2 powders decreased,the average pore size and range of pore size distribution of the preform also decreased.
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