|本期目录/Table of Contents|

[1]孙鑫,陈建军,胡德枫.含铝 SiC 陶瓷纤维的结构演化机制与力学性能研究[J].浙江理工大学学报,2026,55-56(自科四):456-464.
　SUN Xin,CHEN Jianjun,HUDefeng.A study on the structural evolution mechanism and mechanical properties of aluminium-containing SiC ceramic fibers[J].Journal of Zhejiang Sci-Tech University,2026,55-56(自科四):456-464.
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含铝 SiC 陶瓷纤维的结构演化机制与力学性能研究()

浙江理工大学学报[ISSN:1673-3851/CN:33-1338/TS]

卷:
55-56
期数:
2026年自科第四期
页码:
456-464
栏目:
出版日期:
2026-07-10

文章信息/Info

Title:
A study on the structural evolution mechanism and mechanical properties of aluminium-containing SiC ceramic fibers
文章编号:
1673-3851(2026) 07-0456-09
作者:
孙鑫; 陈建军; 胡德枫
浙江理工大学材料科学与工程学院 ,杭州 310018
Author(s):
SUN Xin; CHEN Jianjun; HUDefeng
School of Materials Science& Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
关键词:
先驱体转化法 ; 含铝 SiC陶瓷纤维 ; 直径; 缺陷 ; 拉伸强度
分类号:
TB34
文献标志码:
A
摘要:
为研究先驱体结构、氧引入机制与碳化硅纤维结构演化及力学性能之间的内在联系 , 采用聚碳硅烷 (Polycarbosilane, PCS) 和 乙 酰 丙 酮 铝 ( Aluminium ( Ⅲ ) acetylacetonate, Al(acac)3 ) 反 应合 成 聚 铝碳 硅 烷 (Polyaluminocarbosilane,PACS)先驱体 ,经熔融纺丝制备出不同直径的原纤维 ,并通过空气不熔化、高温热解和高温烧结等工艺获得不同直径的 SiC(Al)陶瓷纤维 。通过 FTIR、XRD和 SEM等表征手段 ,结合拉伸试验系统研究先驱体结构、氧含量与纤维结构演化及力学性能的关系 。结果表明 :直径为 10.46μm 的 SiC(Al)陶瓷纤维综合力学性能最佳 ,其拉伸强度、完成不熔化后的增重率和凝胶含量以及 Weibull模数分别为 1.62GPa、11.5%、94.1%和 19.03。纤维内部的杂质颗粒、孔洞及微裂纹等缺陷 ,是导致其强度降低的根本原因 :缺陷尺寸越大、缺陷越密集 ,其应力集中效应越强 。该研究揭示了先驱体结构、氧引入机制与纤维缺陷形成之间的联系 ,为高性能含铝 SiC纤维的制备及力学性能提升提供了参考价值。

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期 : 2025-11-07 网络出版日期 : 2026-03-05基金项目 : 浙江省自然科学基金重点项目(LZ23E020003) ; 国家自然科学基金项目(51872262)作者简介 : 孙 鑫 (1999— ) ,男 ,安徽安庆人 ,硕士研究生 ,主要从事陶瓷纤维方面的研究。通信作者: 陈建军,E-mail: chen@zstu. edu. cn
更新日期/Last Update: 2026-07-05