Textured Iron Titanate: A Route to Tough, Single-Phase Ceramics

织构化钛酸铁：打造坚韧单相陶瓷的途径

• 批准号: 9411477
• 负责人: Katherine Faber
• 金额: $ 23.5万
• 依托单位: Northwestern University
• 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: 1994-09-01 至 1998-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9411477&HistoricalAwards=false
• 关键词: Textured; Iron; Titanate; Route; Tough

9411477 Faber It is the intent of this proposed work to examine a novel approach to toughening single phase materials without second phase addition by creation of "single phase laminates." The prototype material for study is iron titanate with an exceedingly low thermal expansion coefficient along one of its axes. Textures in the ceramics can be developed through magnetic field assisted techniques. The studies proposed consists of fundamental fracture studies of iron titanate, both random and textured, monolithic and laminated, to gain an understanding microstructure-processing relationships. Small angle microcracking in situ. Finally the design criteria will be established for tough, single phase ceramics through laminated microstructures. %%% The proposed work will examine a novel approach to toughening single phase materials iron titanate without second phase addition. The textured material will be processed with the assistance of magnetic field processing. An understanding of microstructure- processing relationship and the design criteria for tough, single phase ceramic through laminated microstructure will be established. ***

9411477 Faber这项拟议的工作的目的是研究一种新的方法，通过创建“单相层压板”来增韧单相材料，而不需要添加第二相。研究的原型材料是钛酸铁，沿着它的一个轴具有极低的热膨胀系数。陶瓷中的织构可以通过磁场辅助技术来开发。建议的研究包括钛酸铁的基础断裂研究，包括随机断裂和织构断裂、整体断裂和层状断裂，以了解微结构与加工关系。原位小角度微裂纹。最后，通过层状微结构建立了韧性单相陶瓷的设计准则。%建议的工作将研究一种新的方法，在不添加第二相的情况下增韧单相材料钛酸铁。纹理材料将在磁场处理的辅助下进行处理。通过层状微结构建立对韧性单相陶瓷的微结构-加工关系和设计准则的理解。***