Tantalum Aluminum Carbide (Ta<sub>4</sub>AlC<sub>3</sub>) MAX Phase Micron-Powder - MSE Supplies LLC

MSE PRO Tantalum Aluminum Carbide (Ta4AlC3) MAX Phase Micron-Powder

  • $ 16400

MSE PRO™ 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.%


Tantalum Aluminum Carbide (Ta4AlC3belongs to the family of Mn+1AXn (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.


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.