Designing thin film materials - Ternary borides from first principles.

Area of Science:

• Materials Science
• Computational Materials Science
• Thin Film Technology

Background:

• Aluminum nitride coatings exhibit exceptional properties.
• Understanding these properties can guide the design of new functional materials.
• Ternary diborides offer a promising class of materials for exploration.

Purpose of the Study:

• To develop a computational framework for designing functional thin film materials based on ternary diborides.
• To investigate the formation and properties of supersaturated metastable ternary systems.
• To explore the potential for phase transformation induced effects in these materials.

Main Methods:

• Utilizing ab initio calculations to explore material properties.
• Combining binary diborides with different structure types.
• Focusing on exemplary cases of M W_1-x B₂ (M = Al, Ti, V).

Main Results:

• Demonstrated the potential for creating supersaturated metastable ternary diboride systems.
• Showcased the experimental accessibility of ternary solid solutions using modern deposition techniques.
• Identified M W_1-x B₂ (M = Al, Ti, V) as viable candidates.

Conclusions:

• Ab initio calculations provide a reliable method for designing novel ternary diboride thin films.
• Metastable ternary diboride systems can be synthesized using current experimental methods.
• These findings pave the way for developing advanced functional thin film materials.