X-ray Diffraction and SEM Studies on the Effect of Temperature on the Formation of Main Phase Sr2MgSi2O7 Using a Wet and Dry Method for its Preparation

• Published in: Iranian journal of chemistry & chemical engineering Vol. 24; no. 4; pp. 73 - 78
• Main Authors: Ali Asghar Sabbagh Alvani, Ali Asghar Sarabi, Fathollah Moztarzadeh, Mohammad Rabie, Mohammad Javad Kamali
• Format: Journal Article
• Language: English
• Published: Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR 01.12.2005
• Subjects: firing temperature; main phase; silicate host; wet and dry methods
• ISSN: 1021-9986; 1021-9986

A pure Silicate host namely Sr2MgSi2O7 as a support for a long-lasting afterglow when dopped with rare-earth elements was sought after. To this end the process of obtaining firing temperatures of the above mentioned phase in normal condition was carried out using suggested wet and dry methods. The degree of purity obtained in these preparatory methods as well as the different firing temperatures were studied by the aid of SEM and XRD 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 of impurity. Beyond this temperature the wet method would be preferred.