Method of solution doping a sol gel body via immersion

Abstract

A porous body 4 and a first immersing solution 6 are put in a vessel 5 in proportions such that the whole of the porous body 4 is immersed in the immersing solution, and the immersing is conducted for an arbitrary period of time. The vessel 5 is formed so as to have a depth greater than the height of the porous body 4. A vessel-capacity changing device 7 is inserted in the vessel 5. The first immersing solution 6 overflows from the interstice between the vessel-capacity changing device 7 and the vessel 5. A second immersing solution 8 is poured through a charging port, and simultaneously the vessel-capacity changing device 7 is lifted to thereby remove the same from the immersing solution. Thus, the porous body 4 is immersed in the second immersing solution 8 without being exposed to the outside air to thereby complete solution replacement. The immersing of the porous body can be effected safely, securely and at a lowered cost without damaging the porous body.

Dependencies are inferred from the claim text.