新型多阴离子Hf0.8Zr0.2B0.1C0.5N0.4粉体的合成

IF 3.8 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of the American Ceramic Society Pub Date : 2025-08-30 DOI:10.1111/jace.70218

Xiaoyu Wang, Dewei Ni, Bowen Chen, Feiyan Cai, Yang Hu, Yanmein Kan, Yusheng Ding, Shaoming Dong

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引用次数: 0

摘要

本文以B4C、炭黑、N2分别为硼源、碳源、氮源，在1400℃以上通过碳热还原和硼热还原制备了新型多阴离子超高温陶瓷（UHTCs）粉体hf0.8 zr0.2 b0.1 c0.5 n0.4。合成的Hf0.8Zr0.2B0.1C0.5N0.4粉体具有岩盐晶体结构，组成均匀性高，晶格常数为4.602 Å。它的平均粒径为~ 0.13µm，低氧含量为~ 0.43 wt%。这项工作不仅扩大了超高温材料的范畴，而且为开发和设计具有多阴离子和阳离子结构的超高温材料以实现性能优化开辟了新的思路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Synthesis of novel multi-anion Hf0.8Zr0.2B0.1C0.5N0.4 powder

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Synthesis of novel multi-anion Hf0.8Zr0.2B0.1C0.5N0.4 powder

In this work, a novel multi-anion ultra-high temperature ceramic (UHTCs) powder—Hf_0.8Zr_0.2B_0.1C_0.5N_0.4, was designed and synthesized by carbothermal and borothermal reduction above 1400°C using B₄C, carbon black, and N₂ as boron, carbon, and nitrogen sources, respectively. The as-synthesized Hf_0.8Zr_0.2B_0.1C_0.5N_0.4 powder has a rock-salt crystal structure and high compositional homogeneity, with lattice constant of 4.602 Å. It has an average particle size of ∼0.13 µm and low oxygen content of ∼0.43 wt%. This work not only expands the category of UHTCs but also opens a new insight to develop and design UHTCs with multi-anion and cation structures for performance optimization.

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来源期刊

Journal of the American Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

7.50

自引率

7.70%

发文量

590

审稿时长

2.1 months

期刊介绍： The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials. Papers on fundamental ceramic and glass science are welcome including those in the following areas: Enabling materials for grand challenges[...] Materials design, selection, synthesis and processing methods[...] Characterization of compositions, structures, defects, and properties along with new methods [...] Mechanisms, Theory, Modeling, and Simulation[...] JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.