STTR PHASE I: Alpha phase crystalline aluminum oxide coated at temperatures below 500 C using PVD

STTR 相 I：使用 PVD ​​在低于 500 C 的温度下涂覆 α 相结晶氧化铝

• 批准号: 0739659
• 负责人: David Glocker
• 金额: $ 15万
• 依托单位: ISOFLUX, INC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0739659&HistoricalAwards=false
• 关键词: STTR; PHASE; Alpha; phase; crystalline

The Small Business Technology Transfer Research (STTR) Phase I project is aimed at developing and commercializing an alpha alumina coating by using a PVD technology based on an inverted cylindrical magnetron that creates an unbalanced magnetic field. Current methods for producing these coatings require high temperatures and result in undesirable stresses, limiting their applicability. An important example is prosthetics, where corundum's high hardness and biocompatibility would make it an excellent wear surface in joints. The proposed work will develop a better understanding of how equipment design affects the physics and chemistry of the coating process and will demonstrate the feasibility of depositing corundum films on functional substrates for biomedical/surgical implants. Ceramics such as aluminum oxide are used in a wide variety of applications for their high wear resistance and thermal barrier properties. A low temperature process for depositing coatings of stable crystalline ceramic materials would greatly extend the number of product applications that could be improved with these materials. For instance, the lifetime, reliability and overall performance of engine components could be significantly increased using ceramic coatings. Reduction of deposition temperature and control of stresses would allow stable ceramic coatings for these and other important applications.

小企业技术转让研究（STTR）第一阶段项目旨在通过使用基于倒置圆柱形磁控管的PVD技术开发和商业化α氧化铝涂层，该磁控管可产生不平衡磁场。 目前用于生产这些涂层的方法需要高温，并导致不期望的应力，限制了它们的适用性。 一个重要的例子是假肢，在假肢中，骨水泥的高硬度和生物相容性将使其成为关节中极好的磨损表面。拟议的工作将开发一个更好地了解设备设计如何影响的物理和化学的涂层过程，并将展示沉积生物医学/外科植入物的功能基板上的薄膜的可行性。氧化铝等陶瓷因其高耐磨性和隔热性能而被广泛应用。 用于沉积稳定的结晶陶瓷材料的涂层的低温工艺将极大地扩展可以用这些材料改进的产品应用的数量。例如，使用陶瓷涂层可以显著提高发动机部件的寿命、可靠性和整体性能。 沉积温度的降低和应力的控制将允许稳定的陶瓷涂层用于这些和其他重要的应用。