Ramírez Cristina
Institute of Ceramics and Glass ICV-CSIC, Kelsen 5, Madrid 28049, Spain.
Philos Trans A Math Phys Eng Sci. 2022 Sep 19;380(2232):20220006. doi: 10.1098/rsta.2022.0006. Epub 2022 Aug 1.
Over the past decade, a new family of ceramic matrix composites has been developed from the incorporation of homogeneously dispersed graphene-based fillers (graphene nanoplatelets/GNP, graphene oxide sheets/rGO or graphene nanoribbons/GNR) into the ceramic matrices. These composites have shown a significant increment of their fracture toughness accompanied by other electrical and thermal functionalities, which make them potentially attractive for a wide range of applications. Here, the main methods for testing the fracture toughness of these composites are described, then the principal observations on the reinforcing mechanisms responsible for this improvement are briefly reviewed, and we discuss the relation with graphene platelets type, morphology and alignment. This article is part of the theme issue 'Nanocracks in nature and industry'.
在过去十年中，通过将均匀分散的石墨烯基填料（石墨烯纳米片/GNP、氧化石墨烯片/rGO或石墨烯纳米带/GNR）掺入陶瓷基体中，开发出了一种新型陶瓷基复合材料。这些复合材料的断裂韧性显著提高，同时还具备其他电学和热学功能，这使其在广泛的应用中具有潜在吸引力。本文描述了测试这些复合材料断裂韧性的主要方法，随后简要回顾了导致这种改善的增强机制的主要观察结果，并讨论了与石墨烯片类型、形态和排列的关系。本文是主题为“自然与工业中的纳米裂纹”的一部分。
