Fig. 11
From: Protection of glazed tiles in ancient buildings of China
Glaze surface changes of the samples resulted from drastic cycle changes of temperature and humidity. a Untreated sample b untreated sample after 147 cycles c untreated sample after 180 cycles d The sample treated with SIC-1 e the samples treated with SIC-1 after 180 cycles f the samples treated with SIC-1 after 210 cycles g the sample treated with SIC-2 h the samples treated with SIC-2 after 210 cycles i the samples treated with SIC-2 after 250 cycles j the sample treated with SIC-3 k The samples treated with SIC-3 after 180 cycles l The samples treated with SIC-3 after 210 cycles