Spark plasma sintering of α-Si3N4 ceramics with Al2O3 and Y2O3 as additives and its morphology transformation

Ceja-Cárdenas, L.; Lemus‐Ruiz, José; Jaramillo-Vigueras, D.; Torre, S.D. De la

doi:10.1016/j.jallcom.2010.04.102

Cited by 50 publications

(20 citation statements)

References 23 publications

(20 reference statements)

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“…This agrees with previous studies [49][50][51][52]. On the other hand, the density of Si 3 N 4 measured herein is higher than that of some reported results in the literature [2,40,46,53,54]. Ratzker et al [2] have stated that although 500 MPa pressure was applied during spark plasma sintering, they achieved only ~67% relative density for Si 3 N 4 without using sintering additives.…”

Section: Densification Behavior and Phase Evolutionsupporting

confidence: 91%

“…Moreover, there are many results in the literature regarding the advantages of the production of Si 3 N 4 ceramics using SPS [2]. Thus, different Si 3 N 4 -based ceramics were produced by this method; however, only a limited number of studies [2,[43][44][45][46] focused on the processing of Si 3 N 4 ceramics without using sintering additives.…”

Section: Introductionmentioning

confidence: 99%

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Phase analysis, mechanical properties and in vitro bioactivity of graphene nanoplatelet-reinforced silicon nitride-calcium phosphate composites

Bozkurt

Akarsu

Akin

et al. 2021

Journal of Asian Ceramic Societies

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The aim of this study is to produce highly dense Si 3 N 4 based composites with good mechanical properties and bioactivity. Si 3 N 4 ceramics without using sintering aids, Si 3 N 4-HA and Si 3 N 4-HA-GNP based composites have been produced by spark plasma sintering (SPS) at temperatures of 1525-1550°C. The effect of reinforcement type and content on the densification behavior, phase analysis, microstructural development, mechanical properties, and in-vitro bioactivity behavior of Si 3 N 4 were systematically investigated. Monolithic Si 3 N 4 that contains a high amount of β-Si 3 N 4 phase (~87 wt%) was produced by nearly full densification (~99%). Hydroxyapatite (HA) was used as a starting powder during the preparation of binary and triple composites to provide bioactivity to Si 3 N 4 , and after sintering, HA transformed into tricalcium phosphate (β-TCP and α-TCP) polymorphs. The incorporation of GNPs had a positive effect on the stability of β-TCP phases at higher sintering temperatures. The improvement in indentation fracture toughness of the samples with GNP reinforcement was mainly attributable to pull-out and crack deflection mechanisms. In-vitro bioactivity of GNP added composites enhanced with increasing α-TCP content. More calcium phosphate-based particle formation was observed in Si 3 N 4-HA-GNP composites compared to the Si 3 N 4-HA.

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Section: Densification Behavior and Phase Evolutionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Phase analysis, mechanical properties and in vitro bioactivity of graphene nanoplatelet-reinforced silicon nitride-calcium phosphate composites

Bozkurt

Akarsu

Akin

et al. 2021

Journal of Asian Ceramic Societies

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show abstract

“…By contrast, Spark Plasma Sintering (SPS) can take many advantages, such as low sintering temperature, rapid heating rate and short soaking time [15,16]. It is believed that SPS is more conducive to fabricate composite ceramics.…”

Section: Introductionmentioning

confidence: 99%

Enhanced energy storage performance in (Pb0.858Ba0.1La0.02Y0.008)(Zr0.65Sn0.3Ti0.05)O3–(Pb0.97La0.02)(Zr0.9Sn0.05Ti0.05)O3 anti-ferroelectric composite ceramics by Spark Plasma Sintering

Zhang

Jiang

Fan

et al. 2015

Journal of Alloys and Compounds

161

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“…28 The sintering behavior of Si 3 N 4 can be influenced by a liquid phase of the a ternary system of additives Y 2 O 3 -SiO 2 -Al 2 O 3 29 and binary system of additives Y 2 O 3 --Al 2 O 3 . 30 Silicon carbide ceramic with Y 3 Al 5 O 12 (yttrium aluminum garnet, YAG) additive, added by the sol-gel method, can be liquid phase sintered. The suitable sintering temperature is 1860 °C.…”

Section: Halogens As Mineralizersmentioning

confidence: 99%

Accelerated physical and chemical transformations in ceramics processing

Kiss

Panić

2019

JSCS

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From economic and environmental points of view, solid phase chemical reactions are very important parts of modern chemistry and technology, enabling various processes to become cleaner, safer and easier to perform. This survey presents the basic concepts of solid-state transformations in ceramics processing, including notions and phenomena described in capital books on silicate chemistry, published more than 100 years ago, to the present day. During this period, scientists and practitioners in the field of ceramics processing used concepts related to the acceleration of phase transitions and chemical reactions. Today, the differences between various accelerating agents (flux agents, mineralizers and catalysts) in terms of their composition and mechanism of action are almost completely defined and clearly delimited. However, in ceramics processing, a more general term additive is preferably used instead of the previously mentioned ones. The aim of this work is to show that all accelerating agents are equally important to researchers in the field of catalysis and material science, emphasizing that the used terminology could be interpreted from different perspectives.

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Spark plasma sintering of α-Si3N4 ceramics with Al2O3 and Y2O3 as additives and its morphology transformation

Cited by 50 publications

References 23 publications

Phase analysis, mechanical properties and in vitro bioactivity of graphene nanoplatelet-reinforced silicon nitride-calcium phosphate composites

Phase analysis, mechanical properties and in vitro bioactivity of graphene nanoplatelet-reinforced silicon nitride-calcium phosphate composites

Enhanced energy storage performance in (Pb0.858Ba0.1La0.02Y0.008)(Zr0.65Sn0.3Ti0.05)O3–(Pb0.97La0.02)(Zr0.9Sn0.05Ti0.05)O3 anti-ferroelectric composite ceramics by Spark Plasma Sintering

Accelerated physical and chemical transformations in ceramics processing

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