Regeneration of used sand with sodium silicate binder by wet method and their core manufacturing

Kim, Kyeong Ho; Bae, Min A; Lee, Man Sig; Park, Hung‐Suck; Baek, Jae Ho

doi:10.1007/s10163-020-01103-5

Cited by 9 publications

(2 citation statements)

References 14 publications

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“…3D printing, therefore, needs to be explored for TE materials. 15,47−49 Pseudo-3D printing of SnSe has already been achieved by Burton et al; 51 however, the manufacturing times to make a TE leg were long. There is a need, therefore, to find a new binder for pseudo-3D printing.…”

Section: S T Ztmentioning

confidence: 99%

“…There is a need, therefore, to find a new binder for pseudo-3D printing. Sodium silicate is an industrially established binder, being used as an adhesive in the industry for metal sand cast molds and refractory materials, 51 which is stable up to 1373 K. Here, we investigate the feasibility and performance of using sodium silicate as a binder for SnSe powders to make 3D samples that are pseudo-3D printed in a method akin to casting in a rapid and repeatable manner which does not require additive layers and has a much shorter drying time. For this investigation, the form of sodium silicate used was sodium metasilicate (Na 2 SiO 3 ).…”

Section: S T Ztmentioning

confidence: 99%

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Rapid Printing of Pseudo-3D Printed SnSe Thermoelectric Generators Utilizing an Inorganic Binder

Howells

Mehraban

McGettrick

et al. 2023

ACS Appl. Mater. Interfaces

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There has been much interest in tin selenide (SnSe) in the thermoelectric community since the discovery of the record zT in the material in 2014. Manufacturing techniques used to produce SnSe are largely energy-intensive (e.g., spark plasma sintering); however, recently, in previous work, SnSe has been shown to be produced via a low embodied energy printing technique, resulting in 3D samples with high zT values (up to 1.7). Due to the additive manufacturing technique, the manufacturing time required was substantial. In this work, 3D samples were printed using the inorganic binder sodium metasilicate and reusable molds. This facilitated a single-step printing process that substantially reduced the manufacturing time. The printed samples were thermally stable through multiple thermal cycles, and a peak zT of 0.751 at 823 K was observed with the optimum binder concentration. A proof-of-concept thermoelectric generator produced the highest power output of any reported printed Se-based TEG to date.

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Section: S T Ztmentioning

confidence: 99%

Section: S T Ztmentioning

confidence: 99%