Additive manufacturing Cf/SiC composites with high fiber content by stereolithography combined with precursor infiltration and pyrolysis

被引：8

作者：

Jin, Baojie ^{[1
]}

Li, Shan ^{[2
]}

Zheng, Xinqi ^{[1
]}

Hu, Chuanqi ^{[2
]}

Liu, Bingshan ^{[2
]}

Duan, Wenyan ^{[2
]}

Li, Yuan ^{[4
]}

Cui, Congcong ^{[5
]}

Li, Wei ^{[5
]}

Wang, Gong ^{[2
,3
]}

Shen, Jun ^{[6
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

[2] Chinese Acad Sci, Technol & Engn Ctr Space Utilizat, Key Lab Space Mfg Technol SMT, Beijing 100094, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[4] Aerosp Res Inst Mat & Proc Technol, Sci & Technol Adv Funct Composites Lab, Beijing 100076, Peoples R China

[5] Chinese Acad Sci, Key Lab Opt Syst Adv Mfg Technol, Changchun 130033, Peoples R China

[6] Beijing Inst Technol, Sch Mech Engn, Beijing 100081, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2024年 / 50卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Chopped carbon fiber; Additive manufacturing; Stereolithography; Precursor infiltration and pyrolysis; CERAMIC-MATRIX COMPOSITES; FABRICATION; SLURRY; STRENGTH;

D O I：

10.1016/j.ceramint.2023.11.165

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A photocurable ceramic precursor slurry with a carbon fiber content of up to 25 vol% was prepared and carbon fiber reinforced SiC ceramic matrix composites (Cf/SiC composites) were successfully fabricated by stereolithography (SLA) combined with precursor infiltration and pyrolysis (PIP). The photocuring ability of the precursor composite slurry was investigated. The calculated result showed that the penetration depth of the slurry prepared with polycarbosilane (PCS) powder and chopped carbon fiber was 59.98 mu m, which was suitable for stereolithography. In addition, the bulk density, porosity, flexural strength and micromorphology of the green body, debinding body and final Cf/SiC composites were analyzed in detail. After eight cycles of PIP, the bulk density and flexural strength of final Cf/SiC composites were 2.03 +/- 0.04 g/cm3, 109.99 +/- 15.05 MPa, respectively. This work provides a reference for additive manufacturing of Cf/SiC composites by stereolithography.

引用

页码：3982 / 3989

页数：8

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