An infiltrated article prepared from particles covered with water glass

摘要

An article prepared from particles covered with a layer of water glass is disclosed, wherein the water glass has a weight module between 1.8 and 3.5 and the article is infiltrated. The infiltration of the article results in an enhanced strength. Furthermore, a process for the preparation of an article is disclosed, wherein a green article is infiltrated by allowing a liquid material to be absorbed and subsequently solidified.