Solution precursor plasma spray deposition of nanocrystalline functional ceramic coatings

纳米晶功能陶瓷涂层的溶液前驱体等离子喷涂沉积

• 批准号: 46327-2009
• 负责人: Coyle, Thomas
• 金额: $ 2.91万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=496842
• 关键词: Solution; precursor; plasma; spray; deposition

Solution precursor plasma spraying (SPPS) is a process capable of depositing coatings of almost any composition by injecting solutions of precursor salts corresponding to the desired coating composition into a DC-arc plasma. The rapid formation of the solid from the solution results in extremely fine crystallite sizes, typically on the order of 20-30 nm. Coating structures can range from extremely high porosities to nearly completely dense. However, a number of complex phenomena are involved and significant challenges exist in understanding and controlling the process in order to be able to reliably deposit coatings of the desired structure, composition, and properties.

溶液前体等离子喷涂（SPPS）是一种能够通过将与所需涂层成分相对应的前体盐溶液注入直流电弧等离子体来沉积几乎任何成分的涂层的工艺。从溶液中快速形成固体会产生极细的晶粒尺寸，通常约为 20-30 nm。涂层结构的范围可以从极高的孔隙率到几乎完全致密。然而，其中涉及许多复杂的现象，并且在理解和控制该过程以便能够可靠地沉积具有所需结构、成分和性能的涂层方面存在重大挑战。