Summary of constitutional data on the Aluminum-Carbon-Titanium system

Pietzka, M. A.; Schuster, Julius C.

doi:10.1007/bf02647559

Cited by 399 publications

(244 citation statements)

References 19 publications

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“…[31] Of the three ternary phases known to exist, two-Ti 3 AlC 2 and Ti 2 AlC-belong to the MAX phase family; [12] the third, Ti 3 AlC, has a perovskite-type crystal structure. [30] Both Ti 2 AlC and Ti 3 AlC can be found in the ternary system at every temperature between 750 and 1300°C. However, according to Pietzka and Schuster, [30] Ti 3 AlC 2 is not an equilibrium phase at, or below, 1000°C.…”

Section: 22mentioning

confidence: 96%

“…[30] Both Ti 2 AlC and Ti 3 AlC can be found in the ternary system at every temperature between 750 and 1300°C. However, according to Pietzka and Schuster, [30] Ti 3 AlC 2 is not an equilibrium phase at, or below, 1000°C. The equilibrium relations at 1000°C (Fig.…”

Section: 22mentioning

confidence: 96%

“…[28] 1. [30] At 1000°C, the stable phases are: a-Ti, b-Ti, TiAl 3 , TiAl, TiAl 2 , Ti 2 Al 5 , and TiAl 3 . [30,31] 1.2.4 Ti-B System.…”

Section: 22mentioning

confidence: 99%

“…[30] At 1000°C, the stable phases are: a-Ti, b-Ti, TiAl 3 , TiAl, TiAl 2 , Ti 2 Al 5 , and TiAl 3 . [30,31] 1.2.4 Ti-B System. Initial investigations of the Ti-B system suggested the existence of the binary phases Ti 2 B and Ti 2 B 5 , [32] however the existence of these phases has since been refuted.…”

Section: 22mentioning

confidence: 99%

“…1b) and 1300°C have become the standard for this system. [30] For simplicity, this study considers TiC y to be stoichiometric TiC (see below) and is represented as such in the ternary phase diagram.…”

Section: 22mentioning

confidence: 99%

See 4 more Smart Citations

Reactions Between Ti2AlC, B4C, and Al and Phase Equilibria at 1000 °C in the Al-Ti-B-C Quaternary System

Agne

Anasori

Barsoum

2015

J. Phase Equilib. Diffus.

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As automotive, aerospace and the power industries increasingly look to carbide and boride based aluminum, Al, composites for their high specific strengths and increased thermal stability, it is important to characterize the equilibrium phase relations at temperatures common for processing these composites. Herein, two composites were fabricated starting with Al, Ti 2 AlC, and B 4 C. The Ti 2 AlC/B 4 C powders were mixed in both 50/50 and 75/25 vol.% ratios and cold pressed into 53% dense preforms. The preforms were pressureless melt infiltrated in the 900-1050°C temperature range with Al. Ten hour equilibration experiments were also conducted at 1000°C. X-ray diffraction and scanning electron microscopy confirmed that neither Ti 2 AlC nor B 4 C was an equilibrium phase. A number of reaction phases-AlB 2 , Al 3 BC, TiB 2 , TiC, TiAl 3 and Al 4 C 3 -could be found in the non-equilibrated samples. However, the equilibrium phases were found to be Al, TiB 2 , Al 3 BC, and Al 4 C 3 for the more B-rich composite and Al, TiB 2 , TiC, and Al 4 C 3 for the Tirich composite. From these results, the 1000°C quaternary phase diagram adjacent to the AlTiB 2 -Al 4 C 3 triangle and in the Al-rich corner was developed for the first time. This study is a requisite first step for the development and use of advanced composites in the Al-Ti-B-C system.

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