Studying the oxidation of Ti 2 AlC MAX phase in atmosphere: A review

Haftani, Mohammad; Heydari, Mina Saeedi; Baharvandi, Hamid Reza; Ehsani, N.

doi:10.1016/j.ijrmhm.2016.07.006

Cited by 76 publications

(21 citation statements)

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“…In this work, the thermal dependence of k 1 and k 2 for the Ti 2 AlC foams with different porosity levels was experimentally investigated with air flow at 3 different temperatures: 25, 350, and 700°C. Data reported in Figure revealed practically no change in k 1 and a very minor decrease in k 2 up to 700°C, which is a confirmation that oxidation of the porous Ti 2 AlC matrix starts only above this temperature, as reported by Wang and Zhou and Haftani et al . Tallman studied the hot gas flow properties of Ti 2 AlC, Ti 3 AlC 2 , and Ti 3 SiC 2 disk samples prepared by hot pressing.…”

Section: Resultssupporting

confidence: 76%

Porosity effect on microstructure, mechanical, and fluid dynamic properties of Ti₂AlC by direct foaming and gel‐casting

et al. 2018

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In this study, Ti2AlC foams were fabricated by direct foaming and gel‐casting using agarose as gelling agent. Slurry viscosity, determined by the agarose content (at a fixed solids loading), as well as surfactant concentration and foaming time were the key parameters employed for controlling the foaming yield, and hence the foam porosity after sintering process. Fabricated foams having total porosity in the 62.5‐84.4 vol% range were systematically characterized to determine their pore size and morphology. The effect of the foam porosity on the room‐temperature compression strength and elastic modulus was also determined. Depending on the amount of porosity, the compression strength and Young's modulus were found to be in the range of 9‐91 MPa and 7‐52 GPa, respectively. Permeability to air flow at temperatures up to 700°C was investigated. Darcian (k1) and non‐Darcian (k2) permeability coefficients displayed values in the range 0.30‐93.44 × 10−11 m2 and 0.39‐345.54 × 10−7 m, respectively. The amount of porosity is therefore a very useful microstructural parameter for tuning the mechanical and fluid dynamic properties of Ti2AlC foams.

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Section: Resultssupporting

confidence: 76%

Porosity effect on microstructure, mechanical, and fluid dynamic properties of Ti₂AlC by direct foaming and gel‐casting

et al. 2018

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“…39 The M-Al-X phases are most attractive for high-temperature applications, such as Ti 2 AlC and Cr 2 AlC because of their high oxidation resistant (up to 1400 C) resulted from the slow growing protective alumina (Al 2 O 3 ) layers. 40,41 The coefficient of thermal expansion (8.2 Â 10 À6 K À1 ) of Ti 2 AlC 42 is almost equal to that of a-Al 2 O 3 (9.3 Â 10 À6 K À1 ), 43 gives it another advantage by making it resistant to thermal stresses upon thermal cycling. 44 However, low hardness and strength limit its potential use as a structural component like other binary carbide ceramics.…”

Section: Introductionmentioning

confidence: 99%

Recently synthesized (Ti_1−xMo_x)₂AlC (0 ≤ x ≤ 0.20) solid solutions: deciphering the structural, electronic, mechanical and thermodynamic properties via ab initio simulations

Ali

Naqib

2020

RSC Adv.

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“…6. They are damage tolerant, thermal shock resistant, and some are oxidation resistant up to 1400 °C (Al-containing MAX phases (Ti2AlC, Ta2AlC and Cr2AlC) [15][16][17][18], and some possess autonomous self-healing properties at high temperature (e.g., Ti2AlC) [16,17,[19][20][21].…”

Section: Introductionmentioning

confidence: 99%

The Lubricating Properties of Spark Plasma Sintered (SPS) Ti₃SiC₂ MAX Phase Compound and Composite

Magnus

Sharp

Rainforth

2019

Tribology Transactions

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MAX phase composites Ti3SiC2-TiCx and Ti3SiC2-(TiCX + TiC) were synthesized and consolidated via the powder metallurgy spark plasma sintering (SPS) technique. The bulk compositions and microstructural evolution of the resulting SPS discs were analysed using Xray diffraction, Raman spectroscopy and scanning electron microscopy with EDS. The tribological behaviour of the synthesized discs was investigated at room temperature under dry sliding conditions using Al2O3 ball by employing a ball-on-disc tribometer configuration. Postmortem analysis of the worn surfaces showed that the Ti3SiC2 MAX phase exhibited intrinsic self-lubricating behaviour owing to the evolution of easy shearing graphitic carbon at the sliding surface. The addition of TiC delayed the oxidation kinetics of Ti3SiC2 which favours the evolution of graphitic carbon in lieu of rutile and oxycarbide films. Thus, this work shows comprehensively the existence of intrinsic self-lubricating behaviour of Ti3SiC2 and the important role of the secondary phase TiC in the Ti3SiC2 matrix in its tribological behaviour. The wear mechanisms in both composites are dominated by tribo-oxidation triggered by frictional heating. This is then followed by deformation induced wear upon friction transition.

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Studying the oxidation of Ti 2 AlC MAX phase in atmosphere: A review

Cited by 76 publications

References 50 publications

Porosity effect on microstructure, mechanical, and fluid dynamic properties of Ti₂AlC by direct foaming and gel‐casting

Porosity effect on microstructure, mechanical, and fluid dynamic properties of Ti₂AlC by direct foaming and gel‐casting

Recently synthesized (Ti_1−xMo_x)₂AlC (0 ≤ x ≤ 0.20) solid solutions: deciphering the structural, electronic, mechanical and thermodynamic properties via ab initio simulations

The Lubricating Properties of Spark Plasma Sintered (SPS) Ti₃SiC₂ MAX Phase Compound and Composite

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Studying the oxidation of Ti 2 AlC MAX phase in atmosphere: A review

Cited by 76 publications

References 50 publications

Porosity effect on microstructure, mechanical, and fluid dynamic properties of Ti2AlC by direct foaming and gel‐casting

Porosity effect on microstructure, mechanical, and fluid dynamic properties of Ti2AlC by direct foaming and gel‐casting

Recently synthesized (Ti1−xMox)2AlC (0 ≤ x ≤ 0.20) solid solutions: deciphering the structural, electronic, mechanical and thermodynamic properties via ab initio simulations

The Lubricating Properties of Spark Plasma Sintered (SPS) Ti3SiC2 MAX Phase Compound and Composite

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Product

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About

Porosity effect on microstructure, mechanical, and fluid dynamic properties of Ti₂AlC by direct foaming and gel‐casting

Porosity effect on microstructure, mechanical, and fluid dynamic properties of Ti₂AlC by direct foaming and gel‐casting

Recently synthesized (Ti_1−xMo_x)₂AlC (0 ≤ x ≤ 0.20) solid solutions: deciphering the structural, electronic, mechanical and thermodynamic properties via ab initio simulations

The Lubricating Properties of Spark Plasma Sintered (SPS) Ti₃SiC₂ MAX Phase Compound and Composite