Article Effect of Porosity on High Temperature Compressive Behavior of Textured Ti3SiC2 Bodies Prepared by Pressureless Sintering

Eiichi Sei ; Ken-ichi Ikeda ; Seiji Miura ; Koji Morita SAMURAI ORCID ; Tohru S. Suzuki SAMURAI ORCID ; Yoshio Sakka SAMURAI ORCID

66_MT-M2025063.pdf
Download file (3.39 MB)
Download as zip (2.4 MB)
Collection

Citation
Eiichi Sei, Ken-ichi Ikeda, Seiji Miura, Koji Morita, Tohru S. Suzuki, Yoshio Sakka. Effect of Porosity on High Temperature Compressive Behavior of Textured Ti3SiC2 Bodies Prepared by Pressureless Sintering. MATERIALS TRANSACTIONS. 2025, 66 (8), MT-M2025063. https://doi.org/10.2320/matertrans.mt-m2025063

Description:

(abstract)

To clarify the effect of pores on high temperature compressive behavior due to kink deformation, textured Ti3SiC2 pressureless sintered bodies were fabricated and examined by high temperature compression tests with different porosities. The textured Ti3SiC2 pressureless sintered bodies were prepared by slip casting in a strong magnetic field and spark plasma sintering at 1400℃ for 1 h. Samples were cut into rectangular shape with 45° between the casting direction and the compression axis, and compression tests were conducted at 1200℃ at a strain rate of 3 × 10-4 s-1.　Porosity was evaluated by Archimedes method and binarization. Crystal orientation analysis using EBSD method was performed to observe the microstructure evolution before and after the compression test. The sintered bodies had a strongly textured microstructure with homogeneous dispersed pores. The results of high temperature compression tests showed that the 0.2% proof stress depended on the porosity before compression tests. On the other hand, the work hardening coefficient was larger for plessureless sintered sample with high porosity, which attributed to the densification associated with the compression. Microstructural observations indicated that fine kink bands formed in the middle stage of the compression and then disappeared, suggesting that this is important for clarifying kink-band strengthening in the MAX phase.

Rights:

Keyword: Ti3SiC2,, kink deformation, texture, porosity, high temperature deformation

Date published: 2025-08-01

Publisher: Japan Institute of Metals

Journal:

  • MATERIALS TRANSACTIONS (ISSN: 13459678) vol. 66 issue. 8 p. 1006-1013 MT-M2025063

Funding:

  • Japan Society for the Promotion of Science JP21H00087
  • Japan Society for the Promotion of Science JP21H00110
  • Japan Society for the Promotion of Science JP18H05482

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.2320/matertrans.mt-m2025063

Related item:

Other identifier(s):

Contact agent:

Updated at: 2025-09-10 12:30:28 +0900

Published on MDR: 2025-09-10 12:18:00 +0900

Filename Size
Filename 66_MT-M2025063.pdf (Thumbnail)
application/pdf 		Size 3.39 MB Detail