Electric pulse consolidation: an alternative to spark plasma sintering

Yurlova, M. S.; Demenyuk, V. D.; Lebedeva, L. Yu.; Dudina, Dina V.; Grigoryev, E. G.; Olevsky, Eugene A.

doi:10.1007/s10853-013-7805-8

Cited by 67 publications

(41 citation statements)

References 63 publications

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“…At present, sintering technologies for powder materials, where electric current are using as a heating method, are becoming increasingly widespread [1]. This is hot pressing with direct current transmission, spark-plasma sintering (SPS) and high-voltage electro discharge consolidification (HVEDC).…”

Section: Introductionmentioning

confidence: 99%

The Role of Plastic Flow in Processes of High-speed Sintering of Ceramic Materials under Pressure

Tarasova¹,

Тарасов²,

Konovalov³

2018

Kms

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A model to describe the kinetics of the compaction of conductive nitride ceramics using electropulse technologies is developed. The relationship between density and pressure is established on the basis of three components of the geometric, plastic and stressed state, which is affects the contact area between the particles. The model takes into account the change in the relative area of the interpartial contacts under the action of two mechanisms of mass transfer-diffusion and plastic flow.It is shown that a decrease in the particle size of the powder leads to an in-crease in the diffusion contribution and a decrease in the plastic flow, at all other conditions being equal. And for the case of nano-sized particles, diffusion mass transfer is predominant.Increasing in the heating rate leads to a decrease in the contribution of dif-fusion mass transfer at equal temperatures, as well as to an increase in the temperature of the beginning of shrinkage.The processes of plasma-plasma sintering, high-voltage electro-pulsed consolidation and hot pressing control the same mechanisms, plastic flow and diffusion mass transfer, which do not require, in the first approximation, the influence of the electric current on the properties of materials.

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Section: Introductionmentioning

confidence: 99%

The Role of Plastic Flow in Processes of High-speed Sintering of Ceramic Materials under Pressure

Tarasova¹,

Тарасов²,

Konovalov³

2018

Kms

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“…Reported methods include powder compact forging/extrusion, equal channel angular extrusion/ pressing, and hot pressing/sinter forging combined with conventional heating, laser sintering, microwave sintering, electric discharge sintering, or spark plasma sintering [33,255,278,306,425,426,476,492]. Particles with a narrow size distribution and spherical shape are desired to achieve low pore-to-…”

Section: Solid-state Nanoparticle Consolidationmentioning

confidence: 99%

Application of Nanoparticles in Manufacturing

Hu¹,

Tuck²,

Wildman³

et al. 2015

Handbook of Nanoparticles

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With the development of nanoscience and nanotechnology, manufacturing is undergoing revolutionary changes. Nanoparticles, due to their novel and often enhanced properties, are now more and more used in manufacturing. In this chapter, the state-of-the-art application of nanoparticles in manufacturing is reviewed. The contents include five parts: (a) role of nanoparticles in manufacturing, (b) manufacturing methods, (c) applications, (d) challenges, and (e) conclusions. The roles of nanoparticles are divided into three categories: (i) building blocks, being the major component of a manufactured product by solid-state or colloidal nanoparticle consolidation; (ii) functional filler, as an addition for functionality, such as property improver, catalyst, stimuli-responsive, sensing, imaging, and carrier; and (iii) nanocomposites for multifunctionality. Various manufacturing methods and novel trends are summarized in this chapter, including top-down and bottom-up, from 2D to 3D, from cleanroom to desktop, 3D printing, and bio-assisted methods, such as DNA origami. Direct applications in areas of flexible electronics, molecular electronics, solar cells, construction industry, water treatment, and biomedical devices are presented. The associated challenges including nanoparticle safety issue, sustainable manufacturing, economic issue, and scale-up are discussed. Role of Nanoparticles in ManufacturingWith the development of nanoscience and nanotechnology, manufacturing is undergoing revolutionary changes. Nanoparticles, due to their novel and often enhanced properties, have more and more been used in various manufacturing applications. Their role can generally be divided into three categories: (a) building blocks, (b) functional filler, and (c) nanocomposites for multifunctionality, which is summarized in Table 1. Building BlockNanoparticles sometimes act like the bricks in a house-building process to be the main component of a manufactured product. They can be consolidated via solid-and liquid-based methods. Solid-State Nanoparticle ConsolidationSolid-state metallic, ceramic, amorphous, and compound particles can be thermomechanically processed to form bulk 2D/3D structures with desired strength and level of densification (even full densification is possible). Reported methods include powder compact forging/extrusion, equal channel angular extrusion/ pressing, and hot pressing/sinter forging combined with conventional heating, laser sintering, microwave sintering, electric discharge sintering, or spark plasma sintering [33,255,278,306,425,426,476,492]. Particles with a narrow size distribution and spherical shape are desired to achieve low pore-to-

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“…In the process of preparation of the refractory composites, the powders of metallic and ceramic components of the designed chemical composition are mixed together and then consolidated using hot pressing, SPS, PPS, or other relevant techniques [16][17][18]. For the formation of nanocomposite powders, the mechanical alloying process can be applied, in which the reduction of microcrystalline into nanocrystalline grains is provided by high-energy impacts of the balls in the milling vial [19].…”

Section: Introductionmentioning

confidence: 99%

Formation and Properties of the Ta‐Y₂O₃, Ta‐ZrO₂, and Ta‐TaC Nanocomposites

Jakubowicz

Sopata

Adamek

et al. 2018

Advances in Materials Science and Engineering

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e nanocrystalline tantalum-ceramic composites were made using mechanical alloying followed by pulse plasma sintering (PPS). e tantalum acts as a matrix, to which the ceramic reinforced phase in the concentration of 5, 10, 20, and 40 wt.% was introduced. Oxides (Y 2 O 3 and ZrO 2 ) and carbides (TaC) were used as the ceramic phase. e mechanical alloying results in the formation of nanocrystalline grains. e subsequent hot pressing in the mode of PPS results in the consolidation of powders and formation of bulk nanocomposites. All the bulk composites have the average grain size from 40 nm to 100 nm, whereas, for comparison, the bulk nanocrystalline pure tantalum has the average grain size of approximately 170 nm. e ceramic phase refines the grain size in the Ta nanocomposites. e mechanical properties were studied using the nanoindentation tests. e nanocomposites exhibit uniform load-displacement curves indicating good integrity and homogeneity of the samples. Out of the investigated components, the Ta-10 wt.% TaC one has the highest hardness and a very high Young's modulus (1398 HV and 336 GPa, resp.). For the Ta-oxide composites, Ta-20 wt.% Y 2 O 3 has the highest mechanical properties (1165 HV hardness and 231 GPa Young's modulus).

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Electric pulse consolidation: an alternative to spark plasma sintering

Cited by 67 publications

References 63 publications

The Role of Plastic Flow in Processes of High-speed Sintering of Ceramic Materials under Pressure

The Role of Plastic Flow in Processes of High-speed Sintering of Ceramic Materials under Pressure

Application of Nanoparticles in Manufacturing

Formation and Properties of the Ta‐Y₂O₃, Ta‐ZrO₂, and Ta‐TaC Nanocomposites

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Electric pulse consolidation: an alternative to spark plasma sintering

Cited by 67 publications

References 63 publications

The Role of Plastic Flow in Processes of High-speed Sintering of Ceramic Materials under Pressure

The Role of Plastic Flow in Processes of High-speed Sintering of Ceramic Materials under Pressure

Application of Nanoparticles in Manufacturing

Formation and Properties of the Ta‐Y2O3, Ta‐ZrO2, and Ta‐TaC Nanocomposites

Contact Info

Product

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Formation and Properties of the Ta‐Y₂O₃, Ta‐ZrO₂, and Ta‐TaC Nanocomposites