介层对气溶沉积的氧化物涂层的平面度和粘合力的影响
Ki-Seong Lim1, Tae-Soo Jang1, Jae-Hyeon Jeong1
1KoMiCo Co., Ltd., 8 Mosan-ro, Anseong-si 29271, Gyeonggi-do, Republic of Korea.
Materials (Basel, Switzerland)
|July 27, 2024
概括
作为中间层的氧化物 (Y2O3) 涂层可以改善陶涂层在氧化 (Al2O3) 基板上的粘附性. 这种中间层最大限度地减少了裂和形态扭曲,提高了涂层的完整性.
科学领域:
- 材料科学 材料科学 材料科学
- 陶工程 陶工程 陶工程
- 表面工程是什么?表面工程是什么?
背景情况:
- 在Al2O3基板上的陶涂层可能在气溶沉积过程中遭受形态扭曲和微裂纹.
- 氧化物 (Y2O3) 被探索为一种潜在的中间层,以减轻这些问题.
研究的目的:
- 研究Y2O3中间层在最小化Al2O3基板上的陶涂层的形态变形和微裂纹方面的有效性.
- 评估Y2O3中间层对陶涂层晶体结构,微观结构和粘合力的影响.
主要方法:
- 使用e-beam蒸发在Al2O3基板上沉积的Y2O3中间层.
- 使用气溶沉积方法施加的陶涂层.
- 晶体结构分析 (确定了立方体和单临床Y2O3相).
- 微结构分析用于检测裂.
- 机械性能测试 (硬度,弹性模量,附着力).
主要成果:
- 包含立方体Y2O3的Y2O3中间层防止了在单个Y2O3涂层中观察到的微裂.
- Y2O3中间层和顶层表现出立方和单临床Y2O3相.
- 在Y2O3间层涂层中没有观察到裂,这表明了可取的微观结构.
- 单层和层间涂层的硬度和弹性模量相似.
- 与Y2O3中间层 (14.8N与10.2N) 相比,粘附力显著增加.
结论:
- 氧化物中间层有效抑制微裂变,并改善陶涂层在Al2O3基板上的粘附性.
- Y2O3中间层增强了陶涂层系统的整体完整性和性能.
- 这种方法提供了一个可行的策略,通过气溶沉积来制造强大的陶涂层.
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