高熵碳/氮/硼化物陶瓷的增韧研究进展  

Progress in toughening of high-entropy carbon/nitrogen/boride ceramics

作　　者：李艳国 王明阳 邹芹[1,2] LI Yanguo;WANG Mingyang;ZOU Qin(State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao,Hebei 066004,China;School of Mechanical Engineering,Yanshan University,Qinhuangdao,Hebei 066004,China)

机构地区：[1]燕山大学亚稳材料制备技术与科学国家重点实验室,河北秦皇岛066004 [2]燕山大学机械工程学院,河北秦皇岛066004

出　　处：《燕山大学学报》2024年第5期377-395,共19页Journal of Yanshan University

基　　金：河北省自然科学基金资助项目(E2024203136);秦皇岛市科学技术研究与发展计划项目(202302B005)。

摘　　要：高熵碳/氮/硼化物陶瓷因其出色的热稳定性和耐腐蚀性备受关注,然而由于其固有的脆性导致其断裂韧性相对较低,容易在受到外力作用时发生断裂,这限制了其在工程领域的应用。目前对于增韧高熵碳/氮/硼化物陶瓷的系统性综述还较为缺乏。因此,本文总结并对比了高熵碳/氮/硼化物陶瓷材料的增韧技术,并深入介绍了增韧的机制。这些增韧机制通常是多种机制的综合作用,形成协同韧化效应。未来高熵碳/氮/硼化物陶瓷应用前景广阔,可以在多种领域作为不可替代的高性能产品。High-entropy carbon/nitrogen/boride ceramics gamer significant attention due to their exceptional thermal stability and corrosion resistance.However,their inherent brittleness result in relatively low fracture toughness,making them prone to fracture under external forces.This limitation restrict their application in engineering fields.Currently,there is a lack of systematic reviews on toughening strategies for high-entropy carbon/nitrogen/boride ceramics.Therefore,the toughening techniques for high-entropy carbon/nitrogen/boride ceramic materials are summarized and compared in this paper,and an in-depth discussion of the toughening mechanisms is provided.These mechanisms often involve the synergistic effect of multiple toughening processes.In the future,targeted production of high-performance products meeting specific requirements will be essential to promote the widespread application of high-entropy carbon/nitrogen/boride ceramics across various fields.

关 键 词：相变增韧 裂纹偏转和桥联 晶须/纤维增韧 原位增韧 

分 类 号：TB321[一般工业技术—材料科学与工程]