Research on the preparation of single-phase TiNF material by combustion synthesis and its reaction mechanism
ZHANG Yanli
ZHAO Shikai
LYU Cui
ZHANG Xiaofei
Abstract：Using titanium powder,graphite-like hexagonal carbon nitride powder and polytetraflu-oroethylene powder as raw materials,combustion synthesis was employed to induce the reaction of the powder mixture through heat treatment under varying polytetrafluoroethylene content,resulting in the combustion-synthesized products.The phases of the synthetic products were characterized by X-ray diffraction,and the results showed that when the mass fraction of polytetrafluoroethylene powder was 30％,single-phase TiNF material could be prepared.The morphology of single-phase TiNF mate-rial was analyzed by scanning electron microscopy,and the results showed that the single-phase TiNF material was composed of two types of particles:The average size of the larger particles was approxi-mately 5 μm,and that of the smaller particles was approximately 57.5 nm.By studying the reaction results of the binary system under the same heat treatment conditions,the reaction mechanism for the combustion synthesis of TiNF material in the ternary system of titanium,graphite-like hexagonal car-bon nitride and polytetrafluoroethylene was derived.
Keywords：TiNF materialcombustion synthesisternary systembinary systemreaction mecha-nism
Publication Date：2025-08-25
Online Publishing Date：2025-09-25(First online date of this platform, not the publication date of the document)
Pages：5( 66-70 )