A comparison of the tape casting of α- and β-alumina

Lu, Xuesong; Evans, Julian; Heavens, Stephen N.

doi:10.1016/j.jeurceramsoc.2012.07.013

Cited by 11 publications

(7 citation statements)

References 32 publications

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“…The green tape peeling‐off force and rolling properties rely on the balance between flexibility and mechanical strength, as well as adhesion between the tape and carrier, which is linked to the R ‐value. To ensure continuous tape removal and rolling in the industry, the plasticity in the tapes should be optimized with respect to elasticity 35 . The minimum bending radius of the tapes is shown in Figure 5, which decreases with R ‐value.…”

Section: Resultsmentioning

confidence: 99%

“…To ensure continuous tape removal and rolling in the industry, the plasticity in the tapes should be optimized with respect to elasticity. 35 The minimum bending radius of the tapes is shown in Figure 5, which decreases with R-value. Two tapes, 4707 and 4706, show a higher bending radius, whereas tape 6004 is considered overly flexible.…”

Section: Flexibility Tensile Strength and Homogeneitymentioning

confidence: 94%

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Influence of drying conditions and plasticizer‐to‐binder ratio on the water‐based tape casting of La_0.6Sr_0.4Co_0.2Fe_0.8O₃₋_δ

Javan,

Sglavo

2024

Int J Applied Ceramic Tech

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Tape casting is a flexible technique for manufacturing scalable ceramic sheets. This study fabricated La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF6428) tapes using water‐based tape casting. A high molecular weight plasticizer, polyethylene glycol 4000, was chosen to balance flexibility and mechanical strength. Adjusting the plasticizer‐to‐binder ratio (R‐value) and increasing relative humidity during drying led to crack‐free and flawless green tapes of 330 µm. The uniform polymer matrix improved homogeneity and consistency as well. An applicable suspension formulation was developed for the water‐based fabrication of LSCF tapes for continuous production.

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Section: Resultsmentioning

confidence: 99%

Section: Flexibility Tensile Strength and Homogeneitymentioning

confidence: 94%

Influence of drying conditions and plasticizer‐to‐binder ratio on the water‐based tape casting of La_0.6Sr_0.4Co_0.2Fe_0.8O₃₋_δ

Javan,

Sglavo

2024

Int J Applied Ceramic Tech

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“…[12][13] The XRD results from the BASE before and after cycling (Fig. S9a) did not exhibit any new peaks suggesting no structural change in the grain boundary of the ceramic material [31][32] , having an amorphous morphology comprised of beta alumina grains with a particle size less than 5 µm. Ex-situ Raman spectroscopy of the cycled electrolyte confirmed the presence of α-Na2S5 and Na2S4 (Fig.…”

Section: It Nas Micro-cellmentioning

confidence: 99%

An Electrochemical Study on the Cathode of the Intermediate Temperature Tubular Sodium-Sulfur (NaS) Battery

Nikiforidis

Jongerden²,

Jongerden³

et al. 2019

J. Electrochem. Soc.

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The development of low-cost energy storage schemes is imminent in light of the ever-growing demand of electricity. Sodium-sulfur (NaS) batteries offer low-cost technology for energy storage applications due to the intrinsically high capacities of elemental sodium and sulfur as well as their abundant resources. Operating this battery technology on the intermediate range (130-200°C) can lead to lower material costs, mitigate thermal management and safety issues and enhance cycle life. Herein, an electrochemical study (in the form of different carbonaceous materials) on the cathode of the IT NaS cell is performed at 150°C and a concentration range of 1.5 to 3 M sodium pentasulfide dissolved in tetraglyme, showing a robust long term performance (42 days of continuous cycling) with a volumetric energy density of 83 Wh L-1. Most importantly, the cell was eligible for a tenfold volume scale-up considerably enhancing its capacity (790 mAh) but in the same time somewhat hindered by mass transport, especially during the end of the discharge process as manifested by electrochemical impedance spectroscopy.

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“…The utilized slurry recipe was based on that of Lu et al [16]. In a typical batch, 200 g of Na-β"-Al 2 O 3 , 27.0 g of poly(methyl methacrylate) (350 kDa), 12.2 g of di-butyl phthalate, and 12.7 g of PEG 300 were weighed and mixed in a 500 mL polypropylene container.…”

Section: Slurry Preparation and Tape Castingmentioning

confidence: 99%

“…By comparison, tape casting is a commercially established method for producing flat ceramic sheets for applications including microelectronic circuits and fuel cells [18][19][20]. Lu et al describe tape casting of Na-β"-Al 2 O 3 , where they found that PMMA binder with a mixed MEK/ethanol solvent system provided much more consistent results than tapes based on PVB in water [16]. We used a similar slurry recipe substituting PEG 300 for PEG 600 and increasing the ratio of DBP to improve plasticity.…”

Section: Tape Casting and Warm Laminationmentioning

confidence: 99%

Large Planar Na-β″-Al2O3 Solid Electrolytes for Next Generation Na-Batteries

et al. 2020

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Large diameter (> 100 mm) planar Na-β″-Al2O3 solid electrolytes (BASE) with thickness from 1.0 to 1.5 mm have been prepared. Na-β″-Al2O3 was processed as a slurry and cast to give several meters of tape. One hundred and forty mm diameter discs were punched from the tape, stacked, and laminated with a large hydraulic press. Binder burnout and sintering were performed in 150 mm diameter MgO spinel encapsulations to mitigate the loss of Na2O vapor. Conductivity and flexural strength were measured on smaller Na-β″-Al2O3 samples produced via the same tape casting process followed by sintering and gave results consistent with BASE materials produced by uniaxial pressing of powders. Planar BASE membranes enable new cell designs, which are predicted to have higher power densities and better stacking efficiency compared to currently manufactured tubular cells.

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A comparison of the tape casting of α- and β-alumina

Cited by 11 publications

References 32 publications

Influence of drying conditions and plasticizer‐to‐binder ratio on the water‐based tape casting of La_0.6Sr_0.4Co_0.2Fe_0.8O₃₋_δ

Influence of drying conditions and plasticizer‐to‐binder ratio on the water‐based tape casting of La_0.6Sr_0.4Co_0.2Fe_0.8O₃₋_δ

An Electrochemical Study on the Cathode of the Intermediate Temperature Tubular Sodium-Sulfur (NaS) Battery

Large Planar Na-β″-Al2O3 Solid Electrolytes for Next Generation Na-Batteries

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A comparison of the tape casting of α- and β-alumina

Cited by 11 publications

References 32 publications

Influence of drying conditions and plasticizer‐to‐binder ratio on the water‐based tape casting of La0.6Sr0.4Co0.2Fe0.8O3−δ

Influence of drying conditions and plasticizer‐to‐binder ratio on the water‐based tape casting of La0.6Sr0.4Co0.2Fe0.8O3−δ

An Electrochemical Study on the Cathode of the Intermediate Temperature Tubular Sodium-Sulfur (NaS) Battery

Large Planar Na-β″-Al2O3 Solid Electrolytes for Next Generation Na-Batteries

Contact Info

Product

Resources

About

Influence of drying conditions and plasticizer‐to‐binder ratio on the water‐based tape casting of La_0.6Sr_0.4Co_0.2Fe_0.8O₃₋_δ

Influence of drying conditions and plasticizer‐to‐binder ratio on the water‐based tape casting of La_0.6Sr_0.4Co_0.2Fe_0.8O₃₋_δ