| abstract |
A foamed ceramic prepared by using gold tailings as a base material and a preparation method, the foamed ceramics are formed by stacking a plurality of flakes, and the base material of the flakes is gold tailings, a foam stabilizer containing alumina and In the light filler, the content of alumina in the gold tailings is not less than 6wt%, and the content of calcium oxide is not more than 2wt%. In this application, SiO 2 and Al 2 O 3 in gold tailings are melted at high temperature into a glass phase with a certain viscosity to promote the mutual bonding of flakes and flakes. The functional substance of stacked firing, the present application also reduces the specific gravity of the green body through a lightweight filler to reduce the foaming expansion rate of the foamed ceramic, and uses a foam stabilizer to uniformly expand the foamed ceramic during the foaming process and maintain it. A certain shape prevents the foamed ceramic body from being greatly deformed and sticking to the stick during the foaming process, and meets the high temperature foaming of the foamed ceramic without a mold frame. |