Journal
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Volume 40, Issue 13, Pages 4445-4453Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2020.05.017
Keywords
MAX phase; Ti2AlN; FAST/SPS; Sandblasting; Creep
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Funding
- China Scholarship Council of China
- Germany's Federal Ministry of Education and Research (Bundesministerium fur Bildung und Forschung) under the MAXCOM project [03SF0534]
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Highly dense bulk Ti2AlN with high purity was successfully fabricated at 1400 degrees C by Field Assisted Sintering Technology (FAST/SPS) using Ti, Al, TiN as starting powders. Aluminum content appears to play a determinant role to attain high phase purity, where the optimum content has been achieved for a starting molar composition of 1:1.02:1 for Ti, Al, and TiN, respectively. Elastic modulus and hardness were determined via micro-indentation testing at room temperature. Regarding abrasive behavior, sandblasting tests with compressed air of 2 bar were carried out. In addition, creep tests in air in the temperature range of 900 - 1200 degrees C were performed to characterize the steady state deformation behavior under constant applied stresses ranging from 20 - 100 MPa.
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