Self-Propagating High-Temperature Synthesis of TiC + xC Composites

Щербаков, В. А.; Gryadunov, A. N.; Karpov, A. V.; Сачкова, Н. В.; Сычев, А. Е.

doi:10.1134/s0020168520060102

Cited by 3 publications

(1 citation statement)

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“…For example, in the binary Ti-C high-energy milled powder mixture of the stoichiometric composition, TiC with crystallites about 100 nm in size was obtained after heating the mixture up to 900-1000 • C and holding it for 30 min at the maximum temperature [19]. When TiC is synthesized in a mixture not subjected to high-energy milling, the size of TiC crystals is of the order of several micrometers [20].…”

Section: Table 1 Characteristics Of A-b and A-b-c Systems (Reaction Mixtures Of Elemental Powders) Examples Of Metal-ceramicmentioning

confidence: 99%

Synthesis of Ceramic Reinforcements in Metallic Matrices during Spark Plasma Sintering: Consideration of Reactant/Matrix Mutual Chemistry

2021

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Metal–ceramic composites are obtained via ex-situ or in-situ routes. The in-situ route implies the synthesis of reinforcement in the presence of a matrix and is often regarded as providing more flexibility to the microstructure design of composites than the ex-situ route. Spark plasma sintering (SPS) is an advanced sintering method that allows fast consolidation of various powder materials up to full or nearly full density. In reactive SPS, the synthesis and consolidation are combined in a single processing step, which corresponds to the in-situ route. In this article, we discuss the peculiarities of synthesis of ceramic reinforcements in metallic matrices during SPS with a particular consideration of reactant/matrix mutual chemistry. The formation of carbide reinforcements in Cu, Al, and Ni matrices is given attention with examples elaborated in the authors’ own research. Factors determining the suitability of reactive SPS for manufacturing of composites from a matrix/reactants system and features of the structural evolution of the reaction mixture during sintering are discussed.

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Section: Table 1 Characteristics Of A-b and A-b-c Systems (Reaction Mixtures Of Elemental Powders) Examples Of Metal-ceramicmentioning

confidence: 99%