Production of ultra-high temperature carbide (Ta,Zr)C by self-propagating high-temperature synthesis of mechanically activated mixtures

Пацерa, Е. И.; Левашов, Е. А.; Курбаткина, В. В.; Kovalev, D. Yu.

doi:10.1016/j.ceramint.2015.03.146

Cited by 43 publications

(29 citation statements)

References 16 publications

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“…The samples were synthesized by forced SHS pressing in a sand mould from the MA mixtures, as described previously in [18]. A "chemical oven" prepared using a highly exothermic Ti-B-C mixture at a combustion temperature of 3200 K was used to increase the time of exposure of the hot products at high temperature under pressure [30].…”

Section: Methodsmentioning

confidence: 99%

“…Although the features of structure formation of binary carbide (Ta,Zr)C have been demonstrated in [18], it remains unclear whether it is possible to synthesize a single-phase product. Hence, this study was aimed at investigating the effect of MA conditions on the composition and structure of the reaction mixture and the final product, searching for technical solutions for synthesizing a single-phase (Ta,Zr)C solid solution containing no zirconium oxide impurities and fabricating non-porous samples using the hot pressing and spark plasma sintering techniques.…”

Section: Introductionmentioning

confidence: 99%

“…Binary carbide (Ta,Zr)C with a zirconium oxide ZrO 2 content of up to 3 wt.% was fabricated by self-propagating high-temperature synthesis from mechanically activated reaction mixtures (MASHS) [18]. The main benefits of the SHS method are that heat from a chemical reaction is used and high heating temperatures and rates are achieved in the combustion wave, giving rise to unique materials with high productivity [19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

“…The main benefits of the SHS method are that heat from a chemical reaction is used and high heating temperatures and rates are achieved in the combustion wave, giving rise to unique materials with high productivity [19][20][21][22][23][24][25]. The sequence of chemical transformations was studied by dynamic X-ray diffraction in [18]. The formation of ZrC and (Ta,Zr)C was shown to start from partial oxidation of zirconium to ZrO 2 , which is subsequently reduced by carbon.…”

Section: Introductionmentioning

confidence: 99%

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Conditions for fabricating single-phase (Ta, Zr)C carbide by SHS from mechanically activated reaction mixtures

Курбаткина

Пацерa

Vorotilo

et al. 2016

Ceramics International

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Conditions for fabricating single-phase (Ta, Zr)C carbide by SHS from mechanically activated reaction mixtures

Курбаткина

Пацерa

Vorotilo

et al. 2016

Ceramics International

Self Cite

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“…The compact materials were obtained using the force SHS-pressing technology in a "sand" mold, according to the methodology [7,[13][14][15]28]. Synthesized parts were polished, and from their central parts the samples were cut using an electroerosive tool in order to perform the X-ray phase and structural research.…”

Section: Introductionmentioning

confidence: 99%

Ceramic Materials in a Ti–C–Co–Ca3(PO4)2–Ag–Mg System Obtained by MA SHS for the Deposition of Biomedical Coatings

Potanin

Pogozhev

Новиков

et al. 2017

Metals

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This study aimed to obtain biocompatible ceramic materials in a Ti-C-Co-Ca 3 (PO 4 ) 2 -Ag-Mg system by the combustion mode of mechanically activated (MA) reaction mixtures. The influence of the MA time on the reaction ability capability of the mixtures, on their structural and chemical homogeneity, on the combustion parameters and structural-phase conversions in the combustion wave, as well as on the structure and phase composition of the electrode materials has been researched. It was found that the intense treatment of powder mixtures causes plastic deformation of components, the formation of lamellar composite granules, a reduction in the sizes of coherent scattering regions, and also the formation of minor amounts of products. The influence of the activation duration of the ignition temperature and heat release during the combustion of the reaction mixtures was studied. By the method of quenching the combustion front, it was demonstrated that in a combustion wave, chemical transformations occur within the lamellar structures formed during the process of mechanoactivation. It was shown that in the combustion wave, parallel chemical reactions of Ti with C as well as Ti with Co and Ca 3 (PO 4 ) 2 occur, with a Ti-Co-based melt forming the reaction surface. Ceramic electrodes with different contents of Ag and Mg were synthesized by force self-propagating high-temperature synthesis (SHS)-pressing technology using the MA mixtures. The microstructure of the materials consisted of round-shaped grains of nonstoichiometric titanium carbide TiC x grains, intermetallic matrix (TiCo, TiCo 2 , CoTiP), inclusions of Ca and Mg oxides, and grains of the Ag-based solid solution. An increased content of Ag and Mg in the composition of the electrodes, as well as an increased MA duration, leads to an enlargement of the inclusions of the Ag-containing phase size and deterioration in the uniformity of their distribution.

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SHS Processing and Consolidation of Ta–Ti–C, Ta–Zr–C, and Ta–Hf–C Carbides for Ultra‐High‐Temperatures Application

et al. 2018

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This review addresses the structure and phase formation mechanisms of self-propagating high-temperature synthesis (SHS) of single-phase complex carbides Ta-Ti/Zr/Hf-C, as well as the consolidation of synthesized carbides by various sintering methods. Properties of the synthesized and consolidated complex carbides are described, and unique advantages of SHS method for the synthesis of ultra-high temperature complex single-phase carbides are highlighted.

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Production of ultra-high temperature carbide (Ta,Zr)C by self-propagating high-temperature synthesis of mechanically activated mixtures

Cited by 43 publications

References 16 publications

Conditions for fabricating single-phase (Ta, Zr)C carbide by SHS from mechanically activated reaction mixtures

Conditions for fabricating single-phase (Ta, Zr)C carbide by SHS from mechanically activated reaction mixtures

Ceramic Materials in a Ti–C–Co–Ca3(PO4)2–Ag–Mg System Obtained by MA SHS for the Deposition of Biomedical Coatings

SHS Processing and Consolidation of Ta–Ti–C, Ta–Zr–C, and Ta–Hf–C Carbides for Ultra‐High‐Temperatures Application

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