Document Type : Research Note Article

Authors

• A. Mohtasham ¹
• L. Salehiun ²
• K. Ahmadi ³

¹ Isfahan University of Art, Restoration of historical artifacts – cultural

² Islamic Azad University Central Tehran Branch, Restoration of historical artifacts – cultural

³ Semiconductors Department, Materials and Energy Research Center

Abstract

In this study,The materials used in the stucoo ornaments of "Shah-shahan "house has been Discussed. "Shah-shahan" house, in "Ibn-e-Sina" street, Located in Esfahan and is one of the most valuable monuments of the "Qajar" period. After the introduction of stucco decorations, materials used in the ornamnts has been identified. This has been performed using instrumental methods and wet Chemistry.Underneath Layers Respectively were: Thatch primer and two layers of plaster and soil that stucco decoration has been performance on this layer. These layers has been recognized Using wet Chemistry. Instrumental analysis SEM-EDX proved existence of calcium, sulfur, magnesium, aluminum, oxygen and iron. XRD analysis Showed the presence of dominant phase gypsum. This show Production was performed well. Scanning electron microscope images showed needle Crystals of gypsum Sidelong short crystals of "Gach-e-koshte" (in persian) or massaged plaster. In this way it was found that "Gach-e-nim-koshte" has been used in these ornaments.

Keywords

• Shah-shahān house
• stucco ornament
• SEM-EDX
• XRD
• Gypsum plaster