Ti7O13

Ti7O13, also known as titanium suboxide, is a non-stoichiometric compound of titanium and oxygen with a variable composition typically represented as TiOx, where x ranges between approximately 1.08 and 1.25. This material is notable for its metallic conductivity and high melting point, making it useful in specialized applications.

The structure of Ti7O13 belongs to the M-type titanium suboxides, characterized by a complex crystal lattice. It exhibits a layered arrangement of titanium and oxygen atoms, contributing to its unique physical properties. The non-stoichiometric nature of the compound allows for slight variations in its composition, influencing its electrical, thermal, and mechanical behavior.

Ti7O13 is often synthesized through chemical vapor deposition (CVD) or reactive sputtering techniques, where titanium and oxygen react under controlled conditions to form the desired suboxide phase. Its metallic conductivity arises from the presence of titanium in a mixed oxidation state, enabling electron delocalization within the lattice.

Applications of Ti7O13 include use as a diffusion barrier in semiconductor manufacturing, where its stability and conductivity are advantageous. It is also studied for potential use in high-temperature coatings and catalytic applications due to its thermal stability and chemical resistance. Research into its properties continues, particularly in materials science and nanotechnology, where its tunable characteristics make it a subject of interest for advanced functional materials.

Despite its potential, Ti7O13 remains less common than stoichiometric titanium oxides due to its synthesis complexity and niche applications. Further investigation into its synthesis methods and performance optimization may expand its utility in emerging technologies.