摘要
The possibility of identifying gunshot residue (GSR) particles produced by non-toxic primers containing only titanium and zinc is a very difficult task using SEM/EDX analysis employed in the analysis of GSR originating from primers containing lead, barium and antimony. However, Bauer et al. demonstrated that non-toxic (TieZn) primers form a TiZn2O4 spinel crystalline structure using SEM/EDX with EBSD (Electron Back Scatter Diffraction) and TKD (Transmission Kikuchi Diffraction), whereas GSR originating from gadolinium-doped TieZn primers form a non-crystalline glass phase. Here, a possible explanation of these different phenomena is hypothesized.
The possibility of identifying gunshot residue（GSR） particles produced by non-toxic primers containing only titanium and zinc is a very difficult task using SEM/EDX analysis employed in the analysis of GSR originating from primers containing lead, barium and antimony. However, Bauer et al. demonstrated that non-toxic（Tie Zn） primers form a TiZn2O4 spinel crystalline structure using SEM/EDX with EBSD（Electron Back Scatter Diffraction） and TKD（Transmission Kikuchi Diffraction）, whereas GSR originating from gadolinium-doped Tie Zn primers form a non-crystalline glass phase. Here, a possible explanation of these different phenomena is hypothesized.
