GOALI/Collaborative Research: Interface Engineered Diamond Coatings for Dry Machining

GOALI/合作研究：用于干式加工的界面工程金刚石涂层

• 批准号: 0928823
• 负责人: Ashok Kumar
• 金额: $ 16.51万
• 依托单位: University of South Florida
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0928823&HistoricalAwards=false
• 关键词: GOALI; Collaborative; Research; Interface; Engineered

The objective of this Grant Opportunity for Academic Liaison with Industry (GOALI) collaborative research project is to investigate the material substrate-processing interfacial conditions in chemical vapor deposition (CVD)-grown diamond films on cobalt-cemented tungsten-carbide (WC-Co) tools. Coating delamination is the major life-limiting factor to diamond-coated WC-Co cutting tools. Interface engineering, by means of surface treatments and interlayer, and optimum nanocrystalline diamond (NCD) deposition are the key solutions to achieve high-quality diamond coatings for dry machining. This collaborative research will focus on the fundamental mechanisms of interface fabrications, properties and functions to enhance the substrate/coating performance over the life of the cutting tools, and will form joint tasks of modeling, characterization, and optimization of surface conditioning, interlayer interfacial preparations, and subsequent deposition processes. Validation of enhancements to interfacial performance will be demonstrated through machining analysis and wear characterization. In addition, environmental process monitoring, in both coating and dry machining with diamond coated tools, will be conducted with data collected for life-cycle inventory and environmental impact analysis.If successful, this research will lead to breakthrough of diamond coated tools whose performance is comparable to or better than costly polycrystalline diamond tools. Engineering of interlayer and NCD coating optimization, with material characterizations and performance analysis, will further mature the diamond coated tooling technology for industrial applications. This research will also advance knowledge of interface science, critical to coating system functions, especially in harsh tribological services. The findings gained on interface characteristics and behavior modeling will also offer knowledge transformable to other coating system studies. The proposed program will also synergize universities-industry partnership by providing opportunities for faculty and students to conduct research and gain experiences with production processes in an industrial setting. The collaborations will offer opportunity to students working with industrial colleagues and use of their state-of-the-art equipment facilities.

这项与工业联络（Goari）协作研究项目的赠款机会的目的是调查化学蒸气沉积（CVD）种植的材料底物界面条件，这些钻石胶片上的钴粘合剂钨膜（WC-CO）工具。涂层分层是涂有钻石涂层的WC-CO切割工具的主要限制因素。界面工程通过表面处理和层间以及最佳纳米晶钻石（NCD）沉积是实现干加工的高质量钻石涂料的关键解决方案。这项协作研究将重点关注界面制造，属性和功能的基本机制，以增强切割工具生命的基材/涂料性能，并将构成建模，表征和优化表面调节，层间室内界面界面制剂以及后续沉积过程的联合任务。通过加工分析和磨损表征，将证明对界面性能增强的验证。此外，将使用钻石涂层工具的涂料和干加工中的环境过程监测，将通过收集的数据进行生命周期库存和环境影响分析。通过材料特征和性能分析的工程层和NCD涂层优化，将进一步成熟工业应用的钻石涂层工具技术。这项研究还将提高对界面科学的了解，这对涂料系统功能至关重要，尤其是在苛刻的摩擦学服务中。关于界面特征和行为建模的发现还将提供可转换为其他涂料系统研究的知识。拟议的计划还将通过为教师和学生提供在工业环境中进行生产过程的研究并获得研究经验的机会，从而协同大学 - 行业合作伙伴关系。这些合作将为与工业同事一起工作的学生提供机会，并使用其最先进的设备设施。