Process development of fabricating ceramic core using 3D printing technique

Park, Hye-Yeong; Kim, Eun-Hee; Cho, Geun-Ho; Jung, Yeon‐Gil; Zhang, Jing

doi:10.1016/j.matchemphys.2019.04.039

Cited by 19 publications

(11 citation statements)

References 20 publications

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“…The green and firing strengths of the core samples prepared with the sodium silicate solution (Run 2, process B) were 6.7 MPa and 11.4 MPa, respectively, which were higher than those of the core sample coated with the organic binder, 4.5 MPa and 7.2 MPa despite the formation of the glass phase by dipping the sample in the inorganic binder (Run 1, process A). This is because the inorganic binder coating layer was lost due to the decomposition of the organic binder 30 …”

Section: Resultsmentioning

confidence: 99%

Enhancing fracture strength of ceramic core using sodium silicate as the binder

Park

Jung

Kim

et al. 2022

Int J Applied Ceramic Tech

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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 sample were investigated. The results revealed that the firing strength of the ceramic core was significantly improved up to 15.2 MPa 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. In addition, the core was completely decomposed in an NaOH solution at a relatively low temperature of 60 • C, indicating the excellent elution properties of the sample. These results indicate that the method proposed in this study is suitable for the preparation of ceramic cores with high fracture strength and excellent elution behavior.

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Section: Resultsmentioning

confidence: 99%

Enhancing fracture strength of ceramic core using sodium silicate as the binder

Park

Jung

Kim

et al. 2022

Int J Applied Ceramic Tech

Self Cite

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“…Mechanical characteristics often have to be dependent on automatic charges. The thermal properties must not be separated significantly between the thermal expansion and the human body to avoid painful patient dimension changes [7][8][9]. Metallic materials, particularly steel, titanium alloys, cobalt chrome alloys have excellent mechanical properties under mechnical loading conditions.…”

Section: Introductionmentioning

confidence: 99%

Improving bioactivity and strength of PEEK composite polymer for bone application

Oladapo

Zahedi

2021

Materials Chemistry and Physics

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“…Ceramic core materials are widely used for casting high‐temperature hollow parts, including directionally solidified and single‐crystal superalloys blade and vanes. They can form the complex inner cooling channels in hollow parts, which can improve the cooling efficiency in the application at high temperature 1‐3 . The key technology for hollow parts with high properties is the preparation of ceramic cores with excellent comprehensive properties.…”

Section: Introductionmentioning

confidence: 99%

Preparation, mechanical, and leaching properties of CaZrO₃ ceramic cores

Yang

et al. 2021

Int J Applied Ceramic Tech

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The CaZrO3 ceramic core materials with excellent mechanical and chemical properties were successfully prepared using single‐phase CaZrO3 powders. Effects of particle size ratio and sintering temperature on the mechanical and chemical properties of CaZrO3 ceramic core materials were researched. The chemical property was analyzed by leaching research of core materials in 10 wt% and 20 wt% HNO3 solution at the boiling point. Results showed that the suitable particle size ratio was important for the preparation of CaZrO3 ceramic core materials with excellent comprehensive properties. The addition of fine particles in ceramic core materials promoted the densification process owing to the framework formed by coarser particles and sintering neck formed by fine particles between coarse particles, which was beneficial for further improving their bending strength. When the content of particles with 200 mesh size was 80wt%, the highest bending strength was obtained, 54.38 ± 5.28 MPa. The porosity was 17.45% and the volume density was 3.86 g/cm3. The increasing sintering temperature increased the densification of CaZrO3 ceramic core materials by offering the sintering driving force, further leading to the improvement of bending strength. When the temperature was 1650℃, at the 20% content of particles with 200 mesh size, the highest bending strength of CaZrO3 cores reached 51.01 ± 5.18 MPa. Meanwhile, the porosity was 18.65% and the volume density was 3.83 g/cm3. Additionally, the CaZrO3 samples could be effectively leached in 10 wt% HNO3 solution. Therefore, CaZrO3 materials with good mechanical and leaching properties were believed to be a suitable candidate for ceramic core materials in the investment casting of alloys with high melting point.

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Process development of fabricating ceramic core using 3D printing technique

Cited by 19 publications

References 20 publications

Enhancing fracture strength of ceramic core using sodium silicate as the binder

Enhancing fracture strength of ceramic core using sodium silicate as the binder

Improving bioactivity and strength of PEEK composite polymer for bone application

Preparation, mechanical, and leaching properties of CaZrO₃ ceramic cores

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Process development of fabricating ceramic core using 3D printing technique

Cited by 19 publications

References 20 publications

Enhancing fracture strength of ceramic core using sodium silicate as the binder

Enhancing fracture strength of ceramic core using sodium silicate as the binder

Improving bioactivity and strength of PEEK composite polymer for bone application

Preparation, mechanical, and leaching properties of CaZrO3 ceramic cores

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Product

Resources

About

Preparation, mechanical, and leaching properties of CaZrO₃ ceramic cores