Pressureless manufacturing of Cr2AlC compound and the temperature effect
- Authors
- Ta, Q.T.H.; Tran, N.M.; Noh, Jin-Seo
- Issue Date
- Jan-2021
- Publisher
- TAYLOR & FRANCIS INC
- Keywords
- Cr2AlC; elements; max; microstructures; milling; pressureless; sintering; temperature; tga; xrd
- Citation
- Materials and Manufacturing Processes, v.36, no.2, pp.200 - 208
- Journal Title
- Materials and Manufacturing Processes
- Volume
- 36
- Number
- 2
- Start Page
- 200
- End Page
- 208
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/79780
- DOI
- 10.1080/10426914.2020.1819547
- ISSN
- 1042-6914
- Abstract
- In this work, facile pressureless sintering process is explored to manufacture the promising Cr2AlC MAX phase material, using three elemental powders as starting materials. The powders are mixed in a molar ratio of Cr:Al:C = 2:1.2:1, and ball-milled for particle refinement and homogenization. The powder mixture is sintered at differing temperatures from 1000 to 1400°C without applying pressure. Highly pure Cr2AlC MAX phase is obtained from sintering at 1200°C. The Cr2AlC compound shows laminated microstructures and high crystal quality. At other temperatures, significant amounts of secondary phases are observed. The optimized Cr2AlC compound exhibits a metallic behavior and superior oxidation resistance. The simple manufacturing method of Cr2AlC MAX phase developed in this work may also be applied for fabrication of a wider range of MAX phases. © 2020 Taylor & Francis.
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