13973

X-ray Diffraction and SEM Studies on the Effect of Temperature on the Formation of Main Phase Sr2MgSi207 Using a Wet and Dry Method for its Preparation

Sabbagh Alvani Ali Asghar نويسنده , Sarabi Ali Asghar نويسنده , Mozmrzadeh Fathollah نويسنده , Rabie Mohammad نويسنده , Kamali Mohammad Javad نويسنده

73

78

6

A pure Silicate host namely Sr2MgSi207 as a support for a long-lasting afterglow when dopped with rare-earth elements was sought after. To this end the process ofobtainingfiring temperatures of the above mentioned phase in normal condition was carried out using suggested wet and dry methods. The degree ofpurity obtained in these preparatory methods as well as the different firing temperatures were studied by the aid ofSEMandXRD techniques. It was found that for the wet method there exists a temperature beyond which the amount of impurity remained constant. There also existed a temperature at which both the wet and dry methods gave the same amount ofimpurity. Beyond this temperature the wet method would be preferred.

1197664