Experimental Study on Surface Deterioration Disease of Stone Artifacts Based on Infrared Thermography

To accurately identify the deterioration degree of the surfaces of stone cultural relics and determine how various diseases affect each other, the deterioration research combined with infrared thermography and ultrasonic technology was used to effectively detect the deterioration and current situation of the internal structure of rocks and investigate the different states of limestone specimens. The temperature change laws of surface heating and cooling were examined using the distribution of heat and the conduction phenomenon. Infrared thermography was applied to detect the surface deterioration of stone cultural relics and disease development. Results show the limestone specimen surface’s temperature change rule during heating and cooling. During the aging process of the limestone specimen, the original disease area deteriorates faster and more seriously than the fresh and unweathered area. The 3D map of the temperature distribution processed by infrared thermography can be used to quickly determine the disease area and semi-quantitatively measure the degree of disease development, which is essential to the protection of cultural relics. The obtained conclusions in this study can provide the reference for the protect of stone cultural relics.