دورية أكاديمية
أعرض في EDS

Additive manufacturing of strong silica sand structures enabled by polyethyleneimine binder.

التفاصيل البيبلوغرافية
العنوان: Additive manufacturing of strong silica sand structures enabled by polyethyleneimine binder.
المؤلفون: Gilmer DB; Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA.; The Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee, Knoxville, TN, USA., Han L; Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA., Lehmann ML; Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA.; The Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee, Knoxville, TN, USA., Siddel DH; Manufacturing Science Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA., Yang G; Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA., Chowdhury AU; Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA., Doughty B; Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA., Elliott AM; Manufacturing Science Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA. elliottam@ornl.gov., Saito T; Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA. saitot@ornl.gov.
المصدر: Nature communications [Nat Commun] 2021 Aug 26; Vol. 12 (1), pp. 5144. Date of Electronic Publication: 2021 Aug 26.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Nature Pub. Group Country of Publication: England NLM ID: 101528555 Publication Model: Electronic Cited Medium: Internet ISSN: 2041-1723 (Electronic) Linking ISSN: 20411723 NLM ISO Abbreviation: Nat Commun Subsets: PubMed not MEDLINE; MEDLINE
أسماء مطبوعة: Original Publication: [London] : Nature Pub. Group
مستخلص: Binder Jet Additive Manufacturing (BJAM) is a versatile AM technique that can form parts from a variety of powdered materials including metals, ceramics, and polymers. BJAM utilizes inkjet printing to selectively bind these powder particles together to form complex geometries. Adoption of BJAM has been limited due to its inability to form strong green parts using conventional binders. We report the discovery of a versatile polyethyleneimine (PEI) binder for silica sand that doubled the flexural strength of parts to 6.28 MPa compared with that of the conventional binder, making it stronger than unreinforced concrete (~4.5 MPa) in flexural loading. Furthermore, we demonstrate that PEI in the printed parts can be reacted with ethyl cyanoacrylate through a secondary infiltration, resulting in an increase in flexural strength to 52.7 MPa. The strong printed parts coupled with the ability for sacrificial washout presents potential to revolutionize AM in various applications including construction and tooling.
(© 2021. This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply.)
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تواريخ الأحداث: Date Created: 20210827 Latest Revision: 20210923
رمز التحديث: 20221213
مُعرف محوري في PubMed: PMC8390701
DOI: 10.1038/s41467-021-25463-0
PMID: 34446713
قاعدة البيانات: MEDLINE
الوصف
تدمد:2041-1723
DOI:10.1038/s41467-021-25463-0