Invention Grant
US08158248B2 Porous ceramic for slide member, method for preparing the same, and mechanical seal ring 有权
用于滑动构件的多孔陶瓷,其制备方法和机械密封环

Porous ceramic for slide member, method for preparing the same, and mechanical seal ring
Abstract:
In porous ceramic for slide member including independent pores having a pore size of 5 μm or more, the independent pore is flattened body having minor axis in a direction perpendicular to a sliding surface, and a cross sectional area (S1) of an independent pore at a cross section perpendicular to the sliding surface is 95% or less of an area (S2) of a complete round having a diameter which is the same length as a major axis of the cross section of the independent pore, and in a cumulative distribution curve of pore sizes of independent pores in a plane parallel to the sliding surface, a ratio (P75/P25) of a pore size of cumulative 75% by volume (P75) to a pore size of cumulative 25% by volume (P25) is 1.9 or less. The porous ceramic can be suitably used as slide member such as seal ring.
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