Physicomechanical Properties of Porous Materials by Spark Plasma Sintering

Azarniya, Abolfazl; Azarniya, Amir; Safavi, Mir Saman; Ahmadipour, Mohammad; Seraji, Melica Esmaeeli; Sovizi, Saeed; Saqaei, Mahboobe; Yamanoğlu, Rıdvan; Soltaninejad, Mohammad; Hosseini, Hamid Reza Madaah; Ramakrishna, Seeram; Kawasaki, Akira; Adams, Stefan; Reddy, M. V.

doi:10.1080/10408436.2018.1532393

Cited by 30 publications

(8 citation statements)

References 203 publications

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“…Spark plasma sintering (SPS) is emerging as a promising sintering technique for ultrarapid preparation of dense electrolyte pellets of NASICON, garnet, perovskite, sulfides, and lithium-ion-conducting solid electrolytes. − Duan et al . recently reported that the total ionic conductivity of spark plasma-sintered LTAP is up to 2 orders of magnitude higher than that of conventionally sintered pellets, which is attributed by these authors to a fast-ion-conductive interphase between ceramic and glass phases.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Li_1+xAl_xGe_2–x(PO₄)₃ Anode-Protecting Membranes for Hybrid Lithium–Air Batteries by Spark Plasma Sintering

et al. 2020

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NASICON-type Li 1+ x Al x Ge 2– x (PO 4 ) 3 (LAGP) is a promising electrolyte with high ionic conductivity (>10 –4 S cm –1 ), excellent oxidation stability, and moderate sintering temperature. However, preparing dense LAGP pellets with high ionic conductivity is still challenging because of the hazards of dopant loss and partial decomposition on conventional sintering. Here, spark plasma sintering (SPS) of LAGP membranes is explored as a promising ultrarapid manufacturing technique, yielding dense electrolyte membranes. Optimizing the SPS temperature is important to achieve desirable density and hence ionic conductance. Our results show that LAGP samples spark plasma-sintered at 750 °C exhibit the highest total ionic conductivity of 3.9 × 10 –4 S cm –1 with a compactness of 97% and nearly single-crystalline particles. Our solid-state NMR results, X-ray diffraction studies, and scanning electron microscopy micrographs confirm that the achievable ionic conductivity is controlled by the retention of the Al dopant within the LAGP phase, necking between particles, and the minimization of grain boundaries between crystallites within a particle. To benchmark the performance of our spark plasma-sintered solid electrolyte membranes over conventionally prepared LAGP, we demonstrate their favorable performance in hybrid Li–air batteries. The highest energy efficiency is achieved for the fastest ion-conducting membrane sintered at 750 °C.

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Section: Introductionmentioning

confidence: 99%

Enhanced Li_1+xAl_xGe_2–x(PO₄)₃ Anode-Protecting Membranes for Hybrid Lithium–Air Batteries by Spark Plasma Sintering

et al. 2020

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“…Thereby, for all monoliths, closed porosity is negligibly low as the apparent solid density remains approximately constant for all monoliths, as shown in Table S1. satisfying the conditions for the 2D hexagonal symmetry P6m and thus, can be indexed as ( 10), (11), (20), and (21). With increasing sintering temperature, the reflections considerably shift towards higher scattering vectors, indicating a decrease in d-spacing, and, accordingly, a decrease in lattice parameter, as depicted in Figure 4.…”

Section: Figure S11mentioning

confidence: 93%

“…18,19 While one focus of SPS remains on the densication of conventional and hard-to-sinter materials, recently, the production of porous products came into focus. 20,21 SPS was previously applied to fabricate porous OMS monoliths from sol-gel derived SBA-15 powder, 22,23 mesoporous spherical particles, 24 and hydrothermally produced OMS. 25 The studies used the nonionic block copolymer Pluronic P123 as a templating agent, the latter one also Pluronic L121 and F127, resulting in ordered structures of hexagonal, lamellar, and cubic character, respectively.…”

Section: Introductionmentioning

confidence: 99%

Hierarchically porous and mechanically stable monoliths from ordered mesoporous silica and their water filtration potential

et al. 2022

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“…Unlike traditional fabrication processes, such as casting, AM offers the possibility to produce porous parts with complex geometries and controlled porosity. Moreover, the powder metallurgy (PM) method lags behind AM in the fabrication of porous NiTi biomaterials, since PM-fabricated parts have a high concentration of impurities that can affect their mechanical and biological behavior [108,109].…”

Section: Introductionmentioning

confidence: 99%

Additive Manufacturing: An Opportunity for the Fabrication of Near-Net-Shape NiTi Implants

Safavi

Bordbar‐Khiabani

Khalil‐Allafi

et al. 2022

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Nickel–titanium (NiTi) is a shape-memory alloy, a type of material whose name is derived from its ability to recover its original shape upon heating to a certain temperature. NiTi falls under the umbrella of metallic materials, offering high superelasticity, acceptable corrosion resistance, a relatively low elastic modulus, and desirable biocompatibility. There are several challenges regarding the processing and machinability of NiTi, originating from its high ductility and reactivity. Additive manufacturing (AM), commonly known as 3D printing, is a promising candidate for solving problems in the fabrication of near-net-shape NiTi biomaterials with controlled porosity. Powder-bed fusion and directed energy deposition are AM approaches employed to produce synthetic NiTi implants. A short summary of the principles and the pros and cons of these approaches is provided. The influence of the operating parameters, which can change the microstructural features, including the porosity content and orientation of the crystals, on the mechanical properties is addressed. Surface-modification techniques are recommended for suppressing the Ni ion leaching from the surface of AM-fabricated NiTi, which is a technical challenge faced by the long-term in vivo application of NiTi.

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Physicomechanical Properties of Porous Materials by Spark Plasma Sintering

Cited by 30 publications

References 203 publications

Enhanced Li_1+xAl_xGe_2–x(PO₄)₃ Anode-Protecting Membranes for Hybrid Lithium–Air Batteries by Spark Plasma Sintering

Enhanced Li_1+xAl_xGe_2–x(PO₄)₃ Anode-Protecting Membranes for Hybrid Lithium–Air Batteries by Spark Plasma Sintering

Hierarchically porous and mechanically stable monoliths from ordered mesoporous silica and their water filtration potential

Additive Manufacturing: An Opportunity for the Fabrication of Near-Net-Shape NiTi Implants

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Physicomechanical Properties of Porous Materials by Spark Plasma Sintering

Cited by 30 publications

References 203 publications

Enhanced Li1+xAlxGe2–x(PO4)3 Anode-Protecting Membranes for Hybrid Lithium–Air Batteries by Spark Plasma Sintering

Enhanced Li1+xAlxGe2–x(PO4)3 Anode-Protecting Membranes for Hybrid Lithium–Air Batteries by Spark Plasma Sintering

Hierarchically porous and mechanically stable monoliths from ordered mesoporous silica and their water filtration potential

Additive Manufacturing: An Opportunity for the Fabrication of Near-Net-Shape NiTi Implants

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Product

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Enhanced Li_1+xAl_xGe_2–x(PO₄)₃ Anode-Protecting Membranes for Hybrid Lithium–Air Batteries by Spark Plasma Sintering

Enhanced Li_1+xAl_xGe_2–x(PO₄)₃ Anode-Protecting Membranes for Hybrid Lithium–Air Batteries by Spark Plasma Sintering