Knorpp Amy J, Bell Jon G, Huangfu S, Stuer M
High Performance Ceramics Laboratory, Swiss Federal Laboratories for Materials Science and Technology (Empa), CH-8600 Dübendorf, Switzerland.
Chimia (Aarau). 2022 Mar 30;76(3):212-222. doi: 10.2533/chimia.2022.212.
Sintering and microstructural development in ceramics has long been studied in a two-dimensional grain size-density space, with only texture (i.e. deviation of grain orientation from random) used to gain first insights into additional parametric spaces. Following an increased interest for grain boundary engineering and a deeper understanding of dopant effects on sintering and grain boundaries, the theory of complexion transitions for ceramics has been introduced over the last decade, providing a new base for advanced microstructure engineering in ceramics. With emergence of high entropy ceramics over the last 5 years, the combination of both yields new grounds for exploration and engineering of functional ceramic materials of the future.
长期以来,人们一直在二维晶粒尺寸 - 密度空间中研究陶瓷的烧结和微观结构发展,仅使用织构(即晶粒取向与随机取向的偏差)来初步了解额外的参数空间。随着对晶界工程的兴趣增加以及对掺杂剂对烧结和晶界影响的更深入理解,在过去十年中引入了陶瓷的复相转变理论,为陶瓷的先进微观结构工程提供了新的基础。随着高熵陶瓷在过去五年中的出现,两者的结合为未来功能陶瓷材料的探索和工程开辟了新的领域。