Transmission electron micrograph and diffraction patterns of cubic TiO particle from melt containing 1.38 mass% Ti

Transmission electron micrograph and diffraction patterns of cubic TiO particle from melt containing 1.38 mass% Ti

Figure 1: Transmission electron micrograph and diffraction patterns of cubic TiO (ICDD 77-2170) particle from melt containing 1.38 mass% Ti. Scale bar: 300 nm.

Inclusion name: TiO
Record No.: 1097
Inclusion formula: TiO
Inclusion type (Macro/Micro/Nano): Nano
Inclusion type (Exogenous/Indigenous): Indigenous
Inclusion classification: Oxide
Inclusion composition in weight %: No data
Sample: Electrolytic iron + Ti (Fe-Ti melt)
Steel composition in weight %: No data
Note: This paper reports on an investigation of solid titanium oxide inclusions, which have been identified by combining different methods of analysis on quenched samples. These samples were taken from a Fe-Ti-melt at 1600°C, quenched in cold water then mounted and polished for optical microscopy. The oxide inclusions were analysed using transmission electron microscopy (TEM) with energy dispersive spectroscopy (EDS). Both single crystal and polycrystalline diffraction patterns were used to identify the oxides by comparing the d spacings with those in the ICDD XRay Diffraction (XRD) database. XRD was used to analyse the oxide particles on the top of slow cooled samples.
It was found in the TEM study that the similarity of the diffraction patterns of the various phases meant that unique identification was difficult to achieve in some of the diffraction patterns. However, TiO, Ti2O3, Ti3O5, Ti4O7 were identified in quenched samples, while TiO2, FeO x TiO2 and iron oxides were seen in slow cooled samples. It was also confirmed that the type of oxides is related to titanium content of the samples.
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