Lim Ki-Seong, Jang Tae-Soo, Jeong Jae-Hyeon, Hong Sung-Hwan, Jin Joo
KoMiCo Co., Ltd., 8 Mosan-ro, Anseong-si 29271, Gyeonggi-do, Republic of Korea.
Department of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 05006, Republic of Korea.
Materials (Basel). 2024 Jul 17;17(14):3533. doi: 10.3390/ma17143533.
In this study, YO coating is used as an interlayer between AlO substrate and a ceramic coating; this is in order to minimize the morphological distortion produced by a single deposition of the ceramic coating on the AlO substrate, which is performed using the aerosol method. The interlayer coating, which comprises the YO phase, is deposited on the AlO substrate using an e-beam evaporator. The crystal structure of the powder that was used to process the coating is identified as cubic YO. In contrast, the crystal structure of the top-coating layer and interlayer indicates the presence of two kinds of YO phases, which possess cubic and monoclinic structures. The single YO coating without an interlayer exhibits microcracks around the interface between the coating and the substrate, which can be attributed to the stress that occurs during aerosol deposition. In contrast, no cracks are found in the aerosol-deposited YO coating and interlayer, which show a desirable microstructure. The single YO coating and the YO coating with an interlayer exhibit similar hardness and elastic modulus values. Nevertheless, the YO coating with an interlayer exhibits a higher level of adhesion than the single YO coating, with a value of 14.8 N compared to 10.2 N.
在本研究中，YO涂层被用作AlO衬底和陶瓷涂层之间的中间层；这样做是为了尽量减少在使用气溶胶法将陶瓷涂层单次沉积在AlO衬底上时产生的形态畸变。包含YO相的中间层涂层使用电子束蒸发器沉积在AlO衬底上。用于制备涂层的粉末的晶体结构被确定为立方相YO。相比之下，顶涂层和中间层的晶体结构表明存在两种YO相，它们具有立方结构和单斜结构。没有中间层的单一YO涂层在涂层与衬底之间的界面周围出现微裂纹，这可归因于气溶胶沉积过程中产生的应力。相比之下，在气溶胶沉积的YO涂层和中间层中未发现裂纹，它们显示出理想的微观结构。单一YO涂层和带有中间层的YO涂层表现出相似的硬度和弹性模量值。然而，带有中间层的YO涂层比单一YO涂层表现出更高的附着力，其值为14.8 N，而单一YO涂层为10.2 N。
