期刊
CHEMISTRY OF MATERIALS
卷 35, 期 20, 页码 8664-8674出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.chemmater.3c01830
关键词
-
High-entropy materials (HEMs) are a class of solid solutions containing at least five different elements, which has promising potential for the development of functional materials. Researchers synthesized new HEMs in a mullite-type structure and showed that they are mixed solid solutions. Using X-ray techniques, they found that the HEMs form through a metastable amorphous phase without the formation of any crystalline intermediates.
High-entropy materials (HEMs) represent a new class of solid solutions containing at least five different elements. Their compositional diversity makes them promising as platforms for the development of functional materials. We synthesized new HEMs in a mullite-type structure and present five compounds, i.e., Bi-2(Al0.25Ga0.25Fe0.25Mn0.25)(4)O-9 and A(2)Mn(4)O(10) with variations of A = Nd, Sm, Y, Er, Eu, Ce, and Bi, demonstrating the vast accessible composition space. By combining scattering, microscopy, and spectroscopy techniques, we show that our materials are mixed solid solutions. Remarkably, when following their crystallization in situ using X-ray diffraction and X-ray absorption spectroscopy, we find that the HEMs form through a metastable amorphous phase without the formation of any crystalline intermediates. We expect that our synthesis is excellently suited to synthesizing diverse HEMs and therefore will have a significant impact on their future exploration.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据