Niobium Aluminum Carbide (Nb₂AlC) MAX Phase Micron-Powder

Niobium Aluminum Carbide (Nb₂AlC) MAX Phase Micron-Powder

• Chemical Name: Niobium Aluminum Carbide (Nb₂AlC) 
• CAS Number: 196506-01-1
• Product Number: 10g (PO6725); 50g (PO6726); 100g (PO6727)
• Appearance: Black Powder
• Particle Size: 0.5-30μm
• Purity: >90 wt.%

Applications

Niobium Aluminum Carbide (Nb₂AlC) 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 strength up to very high temperatures.

Nb₂AlC has attracted considerable interest. It not only possesses decent mechanical and thermal properties but also shows a superconducting transition at 400 mK for the thin film form. All of these properties render Nb₂AlC a promising material for high-temperature structural and functional applications. 

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 Nb₂AlC dispersions. Please contact us for quote.

References

1. High-temperature synthesis of cast materials based on Nb₂AlC MAX phase. Ceramics International 45, no. 2 (2019): 2689-2691.

2. Synthesis and characterization of Nb₂AlCthin films. Thin Solid Films 517, no. 9 (2009): 2920-2923.

3. Reactive hot pressing and properties of Nb₂AlC. Journal of the American Ceramic Society 92, no. 10 (2009): 2396-2399.