Spark Plasma Sintering of Ceramics: From Modeling to Practice

Stuer, Michael; Bowen, Paul; Zhao, Zhe

doi:10.3390/ceramics3040039

Cited by 14 publications

(6 citation statements)

References 66 publications

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“…The fabrication method was electroconsolidation, which belongs to the group of Spark Plasma Sintering (SPS) [39] or Field Activated Sintering Technique (FAST) [40]. For this method, specimens of pure matrices were prepared sintering the powder blends of iron (Fe), copper (Cu), nickel (Ni), tin (Sn), chromium diboride (CrB 2 ), and vanadium nitride (VN), while to obtain the diamond composite specimens, diamond powder was added.…”

Section: Methodsmentioning

confidence: 99%

Combined Effect of CrB<sub>2</sub> Micropowder and VN Nanopowder on the Strength and Wear Re-sistance of Fe‒Cu–Ni–Sn Matrix Diamond Composites

Ratov¹,

Мечник²,

Rucki³

et al. 2023

Adv. Sci. Technol. Res. J.

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The paper presents research results on the enhancement of diamond composites designed for tools application for mining industry, hard rocks cutting, able to withstand harsh conditions under heavy dynamical loads. In the present study, both CrB 2 micropowder and VN nanopowder additives were used in proportions up to 5 wt.% and 6 wt.%, respectively, together with the basic matrix composition of 51 wt.% Fe, 32 wt.% Cu, 9 wt.% Ni, and 8 wt.% Sn. Addition of both components, CrB 2 and VN, appeared to be advantageous in proportion of 2 wt.% and 4 wt.%, respectively. This composition exhibited the highest relative density of 0.9968, better than that without additives. Similarly, the highest values of compressive strength R cm and flexural strength R bm were reached for the composite with the same percentage of CrB 2 and VN. Compared to the composite with no addition of CrB 2 and VN, R cm improved by almost 70%, while R bm by 81%. Additionally, the abovementioned additives enhanced the ability of the matrix to prevent the diamond reinforcement from being torn out of the composite, which is very important under harsh working conditions of the cutting tools. The presence of CrB 2 micropowder and VN nanopowder promoted densification of the matrix and adhesion between the diamond grits and the Fe-Cu-Ni-Sn matrix.

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Section: Methodsmentioning

confidence: 99%

Combined Effect of CrB<sub>2</sub> Micropowder and VN Nanopowder on the Strength and Wear Re-sistance of Fe‒Cu–Ni–Sn Matrix Diamond Composites

Ratov¹,

Мечник²,

Rucki³

et al. 2023

Adv. Sci. Technol. Res. J.

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“…305 Sintering can be controlled by changing the sintering program parameters, including the time point of pressing force application during the sintering cycle, DC pulse timing, ramp rate, and dwell time. 306,307 Spark plasma sintering technology may, therefore, allow for the precise control of the materials microstructure and defect chemistry by alteration of the process parameters.…”

Section: F Spark Plasma Sinteringmentioning

confidence: 99%

Barium titanate-based thermistors: Past achievements, state of the art, and future perspectives

Bell

Graule

Stuer

2021

Applied Physics Reviews

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Barium titanate materials displaying a positive temperature coefficient of resistivity are ubiquitously employed as thermistors in electrical current and voltage control systems, as well as in gas and thermal sensing applications. The positive temperature coefficient of resistivity effect is widely accepted to be a grain boundary-based phenomenon, although detailed studies on grain boundary structure and chemistry, and their influence on the resulting electrical properties, are seriously lacking. Tailoring of the positive temperature coefficient of resistivity electrical characteristics, for specific high-value applications, will require improved understanding and control over grain boundary phenomenon. A comprehensive overview of the development of barium titanate-based positive temperature coefficient of resistivity ceramics is initially presented. We then advance to a discussion on emerging grain boundary characterization techniques, specifically, a stereographic analysis of electron backscatter diffraction data that could assist in enhancing control over BaTiO 3 defect chemistry and microstructure, through characterization and subsequent manipulation of the population of grain boundary types. These techniques have great potential for increasing the understanding of the delicate interplay between processing conditions, chemistry, microstructure, and functional electrical properties, and are relevant to the development of advanced, high-performance ceramics and electroceramics in general. Contemporary advancements in the field, such as lead-free positive temperature coefficient of resistivity effect materials and multilayer miniaturized systems based on hypostoichiometric barium compositions, are reviewed. Finally, perspectives on future lines of thermistor research, with a focus on the energy sector, are presented including applications in gas separation and chemical sensing.

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“…The model presented in work [ 2 ] takes into account the geometry of the sintering elements and mentions basic process parameters, but simplifies the issue to a simple temperature/voltage/displacement functions output. The more advanced approach is presented in work [ 3 ], where the authors compare grain growth as a function of temperature in transparent ceramics. Work [ 4 ] presents the comparison of simulated and experimental data of SPS samples and applies the temperature-gradient issue to the created model.…”

Section: Introductionmentioning

confidence: 99%

Using the Spark Plasma Sintering System for Fabrication of Advanced Semiconductor Materials

Kaszyca,

Chmielewski,

Bucholc

et al. 2024

Materials

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The interest in the Spark Plasma Sintering (SPS) technique has continuously increased over the last few years. This article shows the possibility of the development of an SPS device used for material processing and synthesis in both scientific and industrial applications and aims to present manufacturing methods and the versatility of an SPS device, presenting examples of processing Arc-Melted- (half-Heusler, cobalt triantimonide) and Self-propagating High-temperature Synthesis (SHS)-synthesized semiconductor (bismuth telluride) materials. The SPS system functionality development is presented, the purpose of which was to broaden the knowledge of the nature of SPS processes. This approach enabled the precise design of material sintering processes and also contributed to increasing the repeatability and accuracy of sintering conditions.

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Spark Plasma Sintering of Ceramics: From Modeling to Practice

Cited by 14 publications

References 66 publications

Combined Effect of CrB<sub>2</sub> Micropowder and VN Nanopowder on the Strength and Wear Re-sistance of Fe‒Cu–Ni–Sn Matrix Diamond Composites

Combined Effect of CrB<sub>2</sub> Micropowder and VN Nanopowder on the Strength and Wear Re-sistance of Fe‒Cu–Ni–Sn Matrix Diamond Composites

Barium titanate-based thermistors: Past achievements, state of the art, and future perspectives

Using the Spark Plasma Sintering System for Fabrication of Advanced Semiconductor Materials

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