无机材料学报2026，Vol.41Issue(4)：421-431,11.DOI:10.15541/jim20250364
锆酸镧多孔隔热材料研究进展
Research Progress on Lanthanum Zirconate Porous Materials for Thermal Insulation
摘要
Abstract
Lanthanum zirconate porous material is a kind of high porosity materials with nanoparticles or microparticles as the basic building unit.These materials exhibit exceptionally low thermal conductivity and maintain remarkable phase stability up to their melting point,making them particularly promising for thermal insulation applications in the aerospace industry.However,sintering problems of lanthanum zirconate porous materials cause collapse and shrinkage of pore structure,resulting in relatively poor thermal resistance and thermal insulation.Researchers have employed precise control over pore sizes and particle dimensions to optimize the mesostructure,leading to a significant reduction in thermal conductivity.Specifically,template-based methods enable precise control over pore sizes at the micro-nano scale,while Sol-Gel techniques combined with varied drying processes facilitate regulation of particle dimensions at the nanoscale.Concurrently,introduction of single-or multi-element doping has proven effective in inducing controlled lattice distortion,which subsequently weakens thermodynamic diffusion processes and suppresses high-temperature grain growth.This dual strategy of morphological control and compositional engineering has substantially improved both thermal insulation capability and temperature resistance of lanthanum zirconate porous materials.This review begins by introducing crystal structure of lanthanum zirconate,highlighting its advantages in phase stability and doping capability.It then systematically surveys recent developments in fabrication technologies and modification strategies for lanthanum zirconate-based porous thermal insulation materials,with particular emphasis on advances in mesostructural optimization and elemental doping methodologies.A detailed analysis is provided on the distinct mechanisms through which these approaches suppress thermal conduction and enhance high-temperature stability.Finally,this review concludes by outlining promising avenues for future research.关键词
多孔锆酸镧/隔热/结构调控/元素掺杂/综述Key words
porous lanthanum zirconate/thermal insulation/structural controlling/element doping/review分类
通用工业技术引用本文复制引用
陈坤,姜勇刚,冯军宗,李良军,胡艺洁,冯坚..锆酸镧多孔隔热材料研究进展[J].无机材料学报,2026,41(4):421-431,11.基金项目
湖南省自然科学基金(2023JJ30632,2025JJ20045) （2023JJ30632,2025JJ20045）
国家重点研发计划(2022YFC2204403) Hunan Provincial Natural Science Foundation of China(2023JJ30632,2025JJ20045) （2022YFC2204403）
National Key R&D Program of China(2022YFC2204403) （2022YFC2204403）
