Flash sintering of Perovskites

钙钛矿的闪速烧结

• 批准号: 436254098
• 负责人: Professor Dr. Doru Constantin Lupascu
• 金额: --
• 依托单位: Institut für Materialwissenschaft
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/436254098?language=en
• 关键词: Flash; sintering; Perovskites

Flash sintering is a novel route to densify ceramics. It utilizes additional electric voltage and current to foster the sintering process. In this project we will try to clarify the role of external electrodes, disentangle the different charge carriers, try to understand the influence of magnetic forces on densification, try to further understand the initiation phase of the Flash event, establish an overall Gibbs free energy function to describe the process, determine the modifications of functional ceramic properties (ferroelectric, magnetic, magnetoelectric and semiconducting) in comparison to classically sintered ceramics, try to devise an industrially applicable sample electroding and understand the influence of composite green bodies on the Flash process and their finally obtained structures and functionality. The additional influence of magentic fields will be investigated.

闪速烧结是一种新型的陶瓷致密化方法。它利用额外的电压和电流来促进烧结过程。在本项目中，我们将试图阐明外部电极的作用，解开不同的电荷载体，试图了解磁力对致密化的影响，试图进一步了解Flash事件的起始阶段，建立一个整体的吉布斯自由能函数来描述这个过程，确定功能陶瓷性能的修改（铁电、磁性、磁电和半导体）与传统烧结陶瓷的比较，尝试设计工业上可应用的样品电极，并了解复合绿色体对Flash工艺的影响及其最终获得的结构和功能。将研究磁场的附加影响。