abstract |
The present invention relates to investment casting moulds comprising a furnace dust, wherein said furnace dust comprises ZrO 2 and/or Al 2 O 3 . The present invention also relates to investment casting moulds comprising a metal oxide dust comprising ZrO 2 and one or more materials selected from alumina, silica and aluminosilicate, and wherein said metal oxide dust has a d 50 of 10 μm or less. The invention also relates to compositions for the production of investment casting moulds, the use of dusts in the formation of investment casting moulds, and the use of investment casting moulds of the invention. |