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中文摘要: 通过火焰喷涂工艺和等离子喷涂工艺制备了 Cr3+ 掺杂 Al2O3 陶瓷涂层。采用扫描电镜、X 射线衍射、荧光 光谱仪等方法表征了涂层的微观形貌、孔隙率、相结构及发光性能等。对比两种不同工艺制备的 Cr3+ 陶瓷涂层性能结果表明:等离子喷涂制备的涂层形貌、颗粒熔化状态、厚度均一性均优于火焰喷涂涂层，但火焰 喷涂工艺涂层的发光性能远优于等离子工艺涂层，其原因是火焰喷涂制备的涂层中 Al2O3 粒子的熔融状态更差， 保留了更多的 α-Al2O3未熔粒子部分将以喷涂原粉中稳定的 α-Al2O3在涂层中进而影响其光学性能。
Abstract:Cr3+ doped Al2O3 ceramic coatings were deposited by flame spraying and plasma spraying. Scanning electron microscopy, X-ray diffraction and fluorescence spectrometry were employed to characterize the microstructure, porosity, phase structure and luminescence properties of the coatings. The comparison of Cr3+ doped Al2O3 ceramic coatings prepared by two different process shows that the coating morphology, particle melting state and thickness uniformity prepared by plasma spraying are all superior to those of flame spray coating, but the optical properties of the flame spray coating are much better than the plasma spraycoating. The reason may be the Al2O3 particles in the flame sprayed coating are not fully melted and retained more α-Al2O3 phase.The unmelted particles in the coating still remain the stable α-Al2O3 structure as it was in original powder and thus affects the optical properties.
keywords: Cr3+ doped Al2O3 coatings Flame spray Plasm spray Luminous
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基金项目:
| 作者 | 单位 |
| 酉琪 | 北京矿冶科技集团有限公司 |
| 姜嫄嫄 | 中国航发南方工业有限公司 |
| 彭浩然 | 北京矿冶科技集团有限公司 |
| 张鑫 | 北京矿冶科技集团有限公司 |
| 魏少红 | 东莞中子科学中心 |
| 纪全 | 东莞中子科学中心 |
| 梁天骄 | 东莞中子科学中心 |
引用文本：
酉琪,姜嫄嫄,彭浩然,张鑫,魏少红,纪全,梁天骄.不同喷涂工艺对 Cr3+ 掺杂 Al2O3 陶瓷涂层相结构及发光性能影响研究[J].热喷涂技术,2019,11(2):43-48.
酉琪,姜嫄嫄,彭浩然,张鑫,魏少红,纪全,梁天骄.不同喷涂工艺对 Cr3+ 掺杂 Al2O3 陶瓷涂层相结构及发光性能影响研究[J].热喷涂技术,2019,11(2):43-48.