现代技术陶瓷2025，Vol.46Issue(3)：377-388,12.DOI:10.16253/j.cnki.37-1226/tq.2025.03.006
Al2O3f/Al2O3-SiC陶瓷基复合材料制备及性能研究
Preparation and Properties of Al2O3f/Al2O3-SiC Ceramic Matrix Composite
梁艳媛 1景君怡 2严蛟 1刘青铜 1刘时剑 1王晓猛 1陈明伟 1邱海鹏1
作者信息
- 1. 中国航空制造技术研究院复合材料技术中心,北京 101300
- 2. 中国航空工业集团公司成都飞机设计研究所,成都 610041
- 折叠
摘要
Abstract
The aircraft engine firewall prevents the spread of flames and high temperatures to other parts of the aircraft,curbing fire escalation and buying critical time for crew members to respond to emergencies,thereby reducing risks to aircraft structures and personnel.It also effectively blocks heat transfer from the engine,avoiding performance degradation and material aging in adjacent structures due to prolonged thermal exposure,thus ensuring the stability and safety of surrounding equipment and structures.This study addresses issues such as heavy weight,installation challenges,high production and maintenance costs,and lengthy cycles associated with existing aviation engine firewall materials by developing and evaluating the properties of Al2O3f/Al2O3-SiC ceramic matrix composites.Experimental results demonstrate that the Al2O3f/Al2C3-SiC composite exhibits excellent mechanical properties,including a tensile strength of 103 MPa,tensile modulus of 45.2 GPa,compressive strength of 256 MPa,compressive modulus of 106 GPa,flexural strength of 189 MPa,flexural modulus of 106 GPa,and interlaminar shear strength of 12.1 MPa.Damage modes involve matrix cracking,interfacial layer delamination,fiber pull-out,and fiber bundle fracture.Additionally,the composite demonstrates superior flame penetration resistance.Compared to conventional titanium alloy firewall materials,it achieves a weight reduction exceeding 40％.关键词
氧化铝纤维/陶瓷基复合材料/防火墙Key words
alumina fiber/ceramic matrix composites/firewall分类
通用工业技术引用本文复制引用
梁艳媛,景君怡,严蛟,刘青铜,刘时剑,王晓猛,陈明伟,邱海鹏..Al2O3f/Al2O3-SiC陶瓷基复合材料制备及性能研究[J].现代技术陶瓷,2025,46(3):377-388,12.
