Phase transformations in titanium oxycarbide TiC0.545O0.08

Tashmetov, M. Yu.; Em, V. T.; Савенко, Б. Н.; Batdemberel, G.

doi:10.1134/1.1541751

Cited by 4 publications

(1 citation statement)

References 7 publications

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“…Neutron diffraction studies by Zubkov et al 22 on the near-stoichiometric composition TiO0.57C0.44 and by Tasmetov et al 21 on the high-vacancy composition TiO0.08C0.545 have both reported the formation of ordered structures. Recent studies on the thermodynamics of titanium oxycarbides and stability of titanium oxycarbide thin films have indicated that although there is a large driving force for the formation of titanium oxycarbides at elevated temperatures, they are not thermodynamically stable at low temperatures.…”

Section: Resultsmentioning

confidence: 99%

Studies on the crystal structure, magnetic and conductivity properties of titanium oxycarbide solid solution (TiO_1−xC_x)

et al. 2016

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Titanium oxides and carbides are often considered as electrode materials in energy conversion and storage devices due to their high potential conductivity and good stability. Titanium monoxide and titanium carbide have structures that can both be described as rocksalt with the same cubic close packed titanium sublattice with oxygen and carbon respectively occupying the octahedral interstices; however the oxide is characterised by extensive defects on both sublattices whilst the carbide is stoichiometric and might be considered as an interstitial metal. Despite the anticipated very different natures of the oxide and carbide sublattices, these two phases actually form a complete solid solution. In the present investigation, we carefully characterise this titanium oxycarbide solid solution, reporting on crystal structure, magnetic and electronic conduction properties. Titanium oxycarbide powders (TiO1-xCx with x = 0 ≤ x ≤ 1) have been prepared by solid state reaction of TiO and TiC powder under controlled environments at elevated temperatures. X-ray diffraction and pycnometric density measurements illustrate the gradual transition of crystal structure of titanium oxycarbides from vacancy containing rock-salt structure of TiO to the fully occupied TiC with increase in carbon content in the oxycarbide lattice. The variation of lattice parameter of oxycarbide crystal as a function of carbon content has been found to be non-linear which can be attributed to variations in the level of vacancies present in metal as well as non-metal sub-lattices.The existence of short-range ordering of anion vacancies in oxycarbide with a nominal composition of TiO0.5C0.5 where half of oxygen of TiO is replaced by carbon has been confirmed by selected-area electron diffraction studies. Low temperature magnetic and conductivity measurements confirm that all oxycarbide compositions are Pauli paramagnetic and good metallic conductors.

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Section: Resultsmentioning

confidence: 99%

Studies on the crystal structure, magnetic and conductivity properties of titanium oxycarbide solid solution (TiO_1−xC_x)

et al. 2016

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Investigation of gamma irradiated nanocrystalline titanium carbide particles using thermal methods

Huseynov,

Hakhiyeva

2023

J Radioanal Nucl Chem

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Synthesis of titanium carbosilicides in Ti–Si and Ti–Si–Cu systems under mechanical alloying of elemental powders in liquid hydrocarbon

Eryomina

Lomayeva

Демаков

2020

Journal of Solid State Chemistry

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Phase transformations in titanium oxycarbide TiC0.545O0.08

Cited by 4 publications

References 7 publications

Studies on the crystal structure, magnetic and conductivity properties of titanium oxycarbide solid solution (TiO_1−xC_x)

Studies on the crystal structure, magnetic and conductivity properties of titanium oxycarbide solid solution (TiO_1−xC_x)

Investigation of gamma irradiated nanocrystalline titanium carbide particles using thermal methods

Synthesis of titanium carbosilicides in Ti–Si and Ti–Si–Cu systems under mechanical alloying of elemental powders in liquid hydrocarbon

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Phase transformations in titanium oxycarbide TiC0.545O0.08

Cited by 4 publications

References 7 publications

Studies on the crystal structure, magnetic and conductivity properties of titanium oxycarbide solid solution (TiO1−xCx)

Studies on the crystal structure, magnetic and conductivity properties of titanium oxycarbide solid solution (TiO1−xCx)

Investigation of gamma irradiated nanocrystalline titanium carbide particles using thermal methods

Synthesis of titanium carbosilicides in Ti–Si and Ti–Si–Cu systems under mechanical alloying of elemental powders in liquid hydrocarbon

Contact Info

Product

Resources

About

Studies on the crystal structure, magnetic and conductivity properties of titanium oxycarbide solid solution (TiO_1−xC_x)

Studies on the crystal structure, magnetic and conductivity properties of titanium oxycarbide solid solution (TiO_1−xC_x)