Residual Stress Strengthened Functionally Gradient Ceramic Materials

残余应力强化功能梯度陶瓷材料

• 批准号: 9400261
• 负责人: Karl Jakus
• 金额: $ 60万
• 依托单位: University of Massachusetts Amherst
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-08-01 至 2000-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9400261&HistoricalAwards=false
• 关键词: Residual; Stress; Strengthened; Functionally; Gradient

9400261 Jakus The objectives of this proposal are to develop new processing technologies for the generation of comprehensive residual surface stresses in ceramic components and to evaluate the effects of controlled residual stress gradients on quasisatic and dynamic damage resistance of residual stress strengthened functionally gradient ceramic materials. By using special processing methods the surface layers of specimens will be made to densify faster than the interior, causing these layers to undergo creep deformation at the densification of the interior. By using the appropriate temperature and load conditions the functionally gradient ceramic materials can be produced. The proposed research will be conducted in collaboration with NRC Italy, NIST and Norton CO. %%% The objectives of this proposal are to develop new and novel processing approach for understanding and developing the new generation of functionally gradient ceramics. The proposed research has potential and will contribute to the National Science Foundation Advance Structural Materials program. ***

小行星9400261 该提案的目的是开发新的加工技术，用于在陶瓷部件中产生全面的表面残余应力，并评估受控残余应力梯度对残余应力增强功能梯度陶瓷材料的准静态和动态抗损伤性的影响。 通过使用特殊的处理方法，试样的表层将比内部更快地致密化，导致这些层在内部致密化时经历蠕变变形。 通过使用适当的温度和载荷条件，可以制备功能梯度陶瓷材料。 拟议的研究将与NRC意大利，NIST和诺顿公司合作进行。 %%% 本提案的目标是开发新的和新颖的处理方法，以了解和开发新一代的功能梯度陶瓷。 这项研究具有潜力，将有助于国家科学基金会先进结构材料计划。 ***