SYNTHESE DES MATERIAUX CERAMIQUES A BASE DE TITANATE D’ALUMINIUM ET DE MULLITE EN PRESENCE DE FELDSPATH
MELINESCU ALINA 1*, EFTIMIE MIHAI 1, DUMITRESCU OVIDIU 1, ANTON CORNEL 2 1. Faculté de Chimie Appliquée et Science des Matériaux, Université Politehnica de Bucarest, Rue Polizu No.1-7, Bucarest, 011061, Roumanie
2. Centre National de Recherche (IMT), Bucarest, Roumanie
This research work consisted to synthesize materials based on aluminum titanate and mullite by conventional sintering in air between 1300 and 1500 ° C. The three compositions tested consist of the following starting raw materials: corundum, rutile, kaolin and feldspar. Mullite is the first compound formed, but appeared to 13500C titanate. A 15000C, XRD diagrams testified to the existence of balance-only (titanate and mullite). The apparent density measured on the samples thermally treated 15000C showed values between 69 and 74% of the theoretical density.
