| 초록 |
Regarding the powder coating process, the aerosol deposition (AD) method is an effective method whereby the coating can be performed at room temperature. Although the defined mechanism has not yet been elucidated, previous studies have reported that particles fragment when they collide with the substrate because of the kinetic energy of the accelerated powder The resultant coating layer is highly dense without the need for additional heat treatment, and it possesses uniform and adequate adhesion between the substrate and the coating layer. However, few studies have investigated the use of glass powders with the AD method. In this study, Glass materials using a SiO2–Al2O3–Y2O3 glass frit with various coating time were coated onto quartz substrates by the aerosol deposition method. Thermal properties of glass and quartz analyzed by using a differential scanning calorimetry and hot stage microscopy. The thickness and structure of the coating layers were observed using a scanning electron microscopy. The coating layers formed densely on the quartz substrates without additional heat treatment and changed as a function of process conditions. Additionally, the crystallization was observed during the deposition at the interface between coating layer and quartz substrate. This study may be helpful to understand the primary research of AD method. |
