摘要 |
Process for the preparation of an yttrium-stabilised fine zircon powder essentially in the tetragonal form, the said process being characterised in that it comprises the following stages:… a) an aqueous mixture of zirconyl/acetate and yttrium acetate is prepared,… b) the pH of the said mixture is brought to a value of at least 5,… c) the solvent is removed from the said mixture, d) the solid residue obtained at the end of stage c) is pyrolysed. …<??>The invention also relates to the products obtained by the said process. |