High-Temperature Synthesis of TiN via Mechanical Activation of Titanium in Nitrogen

Abstract

Chemical interaction between titanium and nitrogen during mechanical activation is studied. The results demonstrate that mechanical activation of titanium powder in a planetary mill leads to a thermal explosion and the formation of titanium nitride nanopowder.

Liquid‐Crystal Templating in Ammonia: A Facile Route to Micro‐ and Mesoporous Metal Nitride/Carbon Composites

“…The typical liquid‐crystalline templating approach in aqueous solution cannot be used for porous metal nitrides since precursors are hydrolytically sensitive and oxides would instead form. Metal nitrides with low surface areas (e.g., 0.27 m 2 g −1 ) are commonly prepared by ball‐milling, but lack porosity 15. Several groups reported porous nanocrystalline metal nitrides by ammonolysis of nanostructured metal oxides at high temperature 16.…”

Combustion of heterogeneous nanostructural systems (Review)

“…Another approach includes mechanical activation of the metal fuel (e.g., titanium powder) in a gaseous oxidizer (nitrogen) medium until self-ignition occurs. Nano-sized TiN [83] and cermets on the basis of TiC x N 1−x [84] were obtained by this method. The combustion specifics in hybrid solid-gas systems with mechanically activated powders, including in-situ combustion during the ball milling process, have not been studied yet in detail.…”

Liquid‐Crystal Templating in Ammonia: A Facile Route to Micro‐ and Mesoporous Metal Nitride/Carbon Composites

“…Metal nitrides with low surface areas (e.g., 0.27 m 2 g À1 ) are commonly prepared by ball-milling, but lack porosity. [15] Several groups reported porous nanocrystalline metal nitrides by ammonolysis of nanostructured metal oxides at high temperature. [16] For example, Zhao and co-workers reported using mesoporous SBA-15 silica as a hard template for mesoporous metal nitrides (CoN, CrN) through a three-step reaction involving nitridation of metal oxides.…”