Joining of C<sub>f</sub>/SiC composites using AlCoCrFeNi<sub>2.1</sub> eutectic high‐entropy alloy filler by spark plasma sintering-Reference-Cited by-同舟云学术

Joining of C_f/SiC composites using AlCoCrFeNi_2.1 eutectic high‐entropy alloy filler by spark plasma sintering

Published:2024-05-03 Issue:5 Volume:21 Page:3302-3310
ISSN:1546-542X
Container-title:International Journal of Applied Ceramic Technology
language:en
Short-container-title:Int J Applied Ceramic Tech

Author:

Wang Rongpei¹^ORCID,Wang Gang¹²,Ran Songlin³^ORCID,Wang Wei³,Yang Yunlong⁴,Zhao Yu¹,Gui Kaixuan¹,He Rujie⁵^ORCID,Tan Caiwang⁶

Affiliation:

1. Anhui Key Laboratory of High‐Performance Non‐Ferrous Metal Materials Anhui Polytechnic University Wuhu P. R. China

2. Key Laboratory of Additive Manufacturing (3D Printing) of Anhui Province Wuhu P. R. China

3. School of Materials Science and Engineering Anhui University of Technology Maanshan P. R. China

4. School of Civil and Environmental Engineering Nanchang Institute of Science and Technology Nanchang P. R. China

5. Institute of Advanced Structure Technology Beijing Institute of Technology Beijing P. R. China

6. State Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin P. R. China

Abstract

AbstractAlCoCrFeNi2.1 eutectic high‐entropy alloy was introduced to join Cf/SiC composite by spark plasma sintering technique. The influence of holding times on microstructure, shear strength and fracture behavior of the joints was studied. When held for 7 min, the typical microstructure of the Cf/SiC‐AlCoCrFeNi2.1‐Cf/SiC joint was Cf/SiC composite → CrSi2 + FCC + Al8Cr5 + graphite → CrSi2 + FCC + Al8Cr5 → CrSi2 + FCC + Al8Cr5 + graphite → Cf/SiC composite. As the holding time extended, the Ni–Si and Fe–Si brittle phases in the joint gradually reduced, and the diffusion transition layer continued to thicken. The maximum joint strength was 23.9 MPa, which was obtained at 1450°C for 7 min. Analyzed by scanning electron microscopy and energy dispersive spectroscopy, the fracture modes of the joints joined at different holding times were all brittle fracture.

Funder

Natural Science Foundation of Anhui Province

National Natural Science Foundation of China

Publisher

Wiley

Reference42 articles.

1. Simultaneously enhancing mechanical and microwave absorption properties of Cf/SiC composites via SiC nanowires additions

2. Microstructural mechanism and mechanical properties of Cf/SiC composite/TC4 alloy joints composite-diffusion brazed with TiZrCuNi + TiCp composite filler

3. Joining of Cf/SiC Ceramic Matrix Composites: A Review

4. Effect of oxidation treatment on KD–II SiC fiber–reinforced SiC composites

5. Effect of brazing parameters on microstructure and mechanical properties of Cf/SiC and Nb-1Zr joints brazed with Ti-Co-Nb filler alloy