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A general fruit acid chelation route for eco-friendly and ambient 3D printing of metals

Author

Listed:
  • Soo Young Cho

    (Yonsei University)

  • Dong Hae Ho

    (Yonsei University)

  • Yoon Young Choi

    (Yonsei University)

  • Soomook Lim

    (Sungkyunkwan University)

  • Sungjoo Lee

    (Sungkyunkwan University
    Sungkyunkwan University (SKKU))

  • Ji Won Suk

    (Sungkyunkwan University
    Sungkyunkwan University (SKKU)
    Sungkyunkwan University)

  • Sae Byeok Jo

    (Sungkyunkwan University)

  • Jeong Ho Cho

    (Yonsei University)

Abstract

Recent advances in metal additive manufacturing (AM) have provided new opportunities for prompt designs of prototypes and facile personalization of products befitting the fourth industrial revolution. In this regard, its feasibility of becoming a green technology, which is not an inherent aspect of AM, is gaining more interests. A particular interest in adapting and understanding of eco-friendly ingredients can set its important groundworks. Here, we demonstrate a water-based solid-phase binding agent suitable for binder jetting 3D printing of metals. Sodium salts of common fruit acid chelators form stable metal-chelate bridges between metal particles, enabling elaborate 3D printing of metals with improved strengths. Even further reductions in the porosity between the metal particles are possible through post-treatments. A compatibility of this chelation chemistry with variety of metals is also demonstrated. The proposed mechanism for metal 3D printing can open up new avenues for consumer-level personalized 3D printing of metals.

Suggested Citation

  • Soo Young Cho & Dong Hae Ho & Yoon Young Choi & Soomook Lim & Sungjoo Lee & Ji Won Suk & Sae Byeok Jo & Jeong Ho Cho, 2022. "A general fruit acid chelation route for eco-friendly and ambient 3D printing of metals," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-021-27730-6
    DOI: 10.1038/s41467-021-27730-6
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