2022
DOI: 10.1111/ijac.14070
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Enhancing fracture strength of ceramic core using sodium silicate as the binder

Abstract: Ceramic cores used in the casting must exhibit high heat resistance because they come in direct contact with molten metals. Therefore, in this study, ceramic cores with high heat resistance and fracture strength were fabricated using sodium silicate as the binder instead of a commonly used organic binder. In addition, the prepared ceramic core was coated with Si and Si-Na precursors as the inorganic binder to improve the firing strength of the ceramic core. The thermal stability and firing strength of the samp… Show more

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Cited by 4 publications
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“…The heat resistance and fracture strength could be significantly improved, owing to the formation of a glass phase between the ceramic particles, which was formed by the reaction of sodium silicate and the inorganic binder precursor. 27 Herein, we successfully mixed SS with an organic binder of PAA to generate a compact cross-linked PAA-SS binder network in situ by hydrogen bonds. The cross-linking process naturally occurs at room temperature without any trigger.…”
mentioning
confidence: 99%
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“…The heat resistance and fracture strength could be significantly improved, owing to the formation of a glass phase between the ceramic particles, which was formed by the reaction of sodium silicate and the inorganic binder precursor. 27 Herein, we successfully mixed SS with an organic binder of PAA to generate a compact cross-linked PAA-SS binder network in situ by hydrogen bonds. The cross-linking process naturally occurs at room temperature without any trigger.…”
mentioning
confidence: 99%
“…Jung’s group found that ceramic cores fabricated by sodium silicate could be used as binders instead of the commonly used organic binders. The heat resistance and fracture strength could be significantly improved, owing to the formation of a glass phase between the ceramic particles, which was formed by the reaction of sodium silicate and the inorganic binder precursor …”
mentioning
confidence: 99%