Tantalum Aluminum Carbide (Ta₄AlC₃) MAX Phase Micron-Powder

Tantalum Aluminum Carbide (Ta₄AlC₃) MAX Phase Micron-Powder

• Chemical Name: Tantalum Aluminum Carbide (Ta₄AlC₃)
• CAS Number: 12070-06-3
• Product Number: 1g (PO6731); 5g (PO6732)
• Appearance: Black Powder
• Particle Size: 5-20μm
• Purity: >90 wt.%

Applications

Tantalum Aluminum Carbide (Ta₄AlC₃) belongs to the family of M_n+1AX_n (MAX) phases with more than 80 members. These are layered, machinable, nanolaminated ternary carbides, nitrides and borides, where M is an early transition metal, A is an A-group element, mainly from groups 13–16 and X is C or N or B. These compounds possess hexagonal crystal structure with space group P6₃/mmc (space group number: 194), where M atoms are in a near closed packed arrangement and are intercalated with A-group atomic layers, with the X-atoms residing in the octahedral sites between the M layers. These atomic arrangements give the MAX phases an effective laminated layered structure that leads to the naming of the MAX phase as nanolaminates. MAX phases possess a unique combination of properties, both metallic and ceramic in nature due to the layered structure. Metallic properties can include good thermal and electrical conductivities, good thermal shock resistance, excellent damage tolerance, and good machinability. Ceramic properties include low density, elastic rigidity, oxidation and creep resistance, and the ability to maintain the strength up to very high temperatures.

The bulk modulus of Ta₄AlC₃ was calculated to be 261 GPa and Ta₄AlC₃, so far, consists of the highest M for any single-phase and non-solid solution MAX. It was found that Ta₄AlC₃ exhibits a combination of improved mechanical properties, good damage tolerance and excellent thermal shock resistance, which makes it a promising structural material. 

Notes: More detailed product information including SDS, certificate of analysis (COA), lead time and volume pricing are available upon request. Please contact MSE Supplies if you need bulk pricing. 

MSE Supplies also offers Ta₄AlC₃ dispersions. Please contact us for quote.

References

1. Ta₄AlC₃: Phase determination, polymorphism and deformation. Acta materialia 55, no. 14 (2007): 4723-4729.

2. Synthesis, properties and thermal decomposition of the Ta₄AlC₃ MAX phase. Journal of the European Ceramic Society 39, no. 10 (2019): 2973-2981.

3. Physical and mechanical properties of bulk Ta₄AlC₃ ceramic prepared by an in situ reaction synthesis/hot‐pressing method. Journal of the American Ceramic Society 90, no. 8 (2007): 2542-2548.

4. Effects of Al substitution by Si in Ti₃AlC₂ nanolaminate. Scientific reports 11, no. 1 (2021): 1-11.