POROUS CERAMIC BODY, MEMBER FOR ADSORPTION AND METHOD FOR PRODUCING POROUS CERAMIC BODY

摘要

PROBLEM TO BE SOLVED: To provide a porous ceramic body which makes color migration inconspicuous, enables moderate visual recognition of deposition of particles, and has comparatively high stability of position detection accuracy using a sensor or the like.;SOLUTION: A porous ceramic body is a porous ceramic body obtained by bonding a plurality of particles containing aluminum oxide as a main component through glass, where a lightness index L* in CIE1976 L*a*b*color space by diffused and reflected light treatment of a surface of at least a part thereof is 58 or more and 71 or less, a chromaticness index a* is -1 or more and 3 or less and a chromaticness index b* is -1 or more and 9 or less, and a plurality of dark portions are dispersed and positioned on at least a part of the surface.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT