Invite Speaker：Prof. Wang Shijie
Title：应用于热障的高熵陶瓷
Time: 2026年5月14日 下午16:00
Location: A245,CYRUS BLDG.,XINGQING CAMPUS,XI'AN JIAOTONG UNIVERSITY
Abstract：High-entropy ceramics (HECs) have emerged as a promising class of materials for various industry applications due to their unique structural and functional properties. Stabilized by high configurational entropy, these materials typically incorporate five or more cations into a single-phase structure, resulting in a chemically disordered yet thermodynamically stable structure with enhanced defect concentrations, and excellent thermal and chemical stability. These attributes make HECs attractive not only for thermal barrier coatings but also for applications in solid oxide fuel cells, oxygen permeation membranes, and other energy-related systems. However, key challenges remain, including controlling cation distribution, understanding defect chemistry, and developing reliable synthesis strategies. In this work, I present recent advances in high-entropy fluorite oxides (HEOs), focusing on their synthesis, characterization, and the relationships between composition, microstructure, and thermal and mechanical properties. The results demonstrate that HEOs exhibit outstanding thermal stability and tunable properties, highlighting their strong potential for next-generation thermal barrier and energy applications.
Introduction：Wang Shijie (汪世界)，新加坡科技研究局（A*STAR）未来能源加速与转化中心（FEAT）及材料研究与工程研究所（IMRE）高级首席科学家。研究方向为先进陶瓷复合材料和涂层，在材料合成、加工和表征领域拥有广泛的工业应用经验，在先进涂层领域取得多项产业化专利成果。研发的航空发动机耐磨涂层已实现工程应用，在延长部件寿命的同时显著降低生产成本；针对聚变堆研发的系列钨涂层技术，可耐受极端中子与等离子体辐照环境，并已成功完成技术转让，实现本地企业量产。已发表期刊论文300余篇，授权专利20余项，H指数为62。
