论文标题
从高渗透陶瓷（HEC）到成分复杂的陶瓷（CCCS）
From High-Entropy Ceramics (HECs) to Compositionally Complex Ceramics (CCCs)
论文作者
论文摘要
这次邀请的演讲将回顾我们最近关于高渗透陶瓷（HEC）和构图复杂陶瓷（CCC）的一系列研究，并讨论未来的观点。各种单相等离程Quinary（五组分）HEC，例如MB2，MB，M3B4，MB4和MB6 Borides，MSI2和M3SI5硅化硅，钙钛矿，荧光岩，荧光岩和辉石的氧化物和（金属层）氧化铝已被捏造。我们进一步提议将HEC扩展到CCC，以包括非等摩尔组合物，并进一步考虑短期和远程订单，从而减少配置熵，但提供了额外的维度和机会来量身定制和改善各种特性。我们还报道了第一个双相HEC/CCC。 Using compositionally complex fluorite-based oxides (CCFBOs, which can possess fluorite or defect fluorite, pyrochlore, weberite, fergusonite, and bixbyite phases) as the model systems, we have recently discovered long- and short- range orders, composition- and redox-induced order-disorder transitions (ODTs), and ultrahigh-entropy weberite and fergusonite phases in several 10至21组件系统。
This invited talk will review a series of our recent studies on high-entropy ceramics (HECs) and compositionally complex ceramics (CCCs) and discuss the future perspective. Various single-phase equimolar quinary (five-component) HECs, e.g., MB2, MB, M3B4, MB4, and MB6 borides, MSi2 and M3Si5 silicides, perovskite, fluorite, and pyrochlore oxides, and (intermetallic) aluminides have been fabricated. We further proposed to extend HECs to CCCs to include non-equimolar compositions and further consider short- and long-range orders, which reduce configurational entropies but offer additional dimensions and opportunities to tailor and improve various properties. We also reported the first dual-phase HECs/CCCs. Using compositionally complex fluorite-based oxides (CCFBOs, which can possess fluorite or defect fluorite, pyrochlore, weberite, fergusonite, and bixbyite phases) as the model systems, we have recently discovered long- and short- range orders, composition- and redox-induced order-disorder transitions (ODTs), and ultrahigh-entropy weberite and fergusonite phases in several 10- to 21-component systems.
