Sintering of Titanium, Silicon, and Titanium Silicide Powder Mixtures

Прибытков, Г. А.; Vagner, M. I.; Коржова, В. В.; Коростелева, Е. Н.; Gurskikh, A. V.; Firsina, I. A.

doi:10.1007/s11106-014-9568-4

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…Amigo´et al [25,26] investigated Ti and TiSi 2 powder vacuum sintering between 1150°C and 1315°C and found that the Ti matrix reacts with TiSi 2 particles to produce Ti-Si and Ti 5 Si 3 intermetallic compounds. Pribytkov et al [27] studied Ti, Si, and Ti 5 Si 3 powder vacuum sintering at 1250°C, and reported the presence of a-Ti, Ti 5 Si 3 , and Ti 5 Si 4 alloys. Furthermore, Park et al [28] investigated dense Ti-Si alloys via spark plasma sintering, concluding that the process promotes the formation of a-Ti, Ti-Si, TiSi 2 , and Ti 5 Si 3 .…”

Section: Introductionmentioning

confidence: 99%

Powder Metallurgy Production of Ti-2 Wt Pct Si Alloy: Structural, Mechanical, and Electrochemical Characterization of the Sintered Material

Guzmán

Muranda

Soliz

et al. 2020

Metall Mater Trans A

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Several commercial alloys use silicon (Si) to improve titanium (Ti) resistance to creep and oxidation at high temperatures and to improve Ti corrosion resistance in acid media. According to the Ti-Si phase diagram, reported stable solid phases in the Ti-rich region are b-Ti, a-Ti, Ti 3 Si, and Ti 5 Si 3. Nevertheless, very few works in the literature discuss Ti 3 Si intermetallic production. As such, this work studied the possibility of obtaining an a-Ti-Ti 3 Si alloy by hot pressing a-Ti supersaturated solid solution powders obtained by mechanical alloying. The consolidation of milled powders was performed using uniaxial hot press equipment. Structural and morphological evolutions during the sintering process were investigated by X-ray diffraction and scanning electron microscopy. Electrochemical behaviors of sintered samples were evaluated by open circuit potential and linear sweep voltammetry. Results show a fine and uniform Ti 3 Si alloy distribution in the a-Ti matrix produced by the proposed powder metallurgy route. The sintered samples demonstrated high micro-hardness and resistance to sulfuric acid corrosion. Additionally, Ti 3 Si was shown to have a significant hardening effect on the a-Ti matrix. Electrochemical behavior further demonstrates that a fine and homogeneous Ti 3 Si distribution in the a-Ti matrix contributes to a more stable superficial oxide layer against sulfuric acid corrosion.

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Section: Introductionmentioning

confidence: 99%

Powder Metallurgy Production of Ti-2 Wt Pct Si Alloy: Structural, Mechanical, and Electrochemical Characterization of the Sintered Material

Guzmán

Muranda

Soliz

et al. 2020

Metall Mater Trans A

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“…The cathodes consisted of solid and fragile refractory compounds can't be machined and may be spontaneously destroyed by thermal stresses especially at high temperatures which are achieved in vacuum-arc technologies. Earlier we have obtained and investigated dense cathode materials Ti-Si obtained by sintering of powder mixtures of titanium and titanium silicide [3]. These cathodes contained 10-25 at.% of silicon which is the most often used composition for cathodes.…”

Section: Introductionmentioning

confidence: 99%

Structure of Sintered Ti – TiC Materials

Krinitcyn

Прибытков

Коростелева

2014

AMM

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The results of studying of sintered powder Ti-TiC compositions are presented in this paper. Materials varying with carbon content and titanium powder dispersity sintered at 1300°С and were investigated. Sintering duration, carbon content and titanium dispersity were shown to influence on microstructure, average grain size, as well as porosity and crystal lattice parameters of titanium and titanium carbide.

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