Development of a binder formulation for fused deposition of ceramics

T.F. McNulty (Department of Ceramic and Materials Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey, USA)
F. Mohammadi (Department of Ceramic and Materials Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey, USA)
A. Bandyopadhyay (Assistant Professor, School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington, USA)
D.J. Shanefield (Department of Ceramic and Materials Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey, USA)
S.C. Danforth (Department of Ceramic and Materials Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey, USA)
A. Safari (Department of Ceramic and Materials Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey, USA)

Rapid Prototyping Journal

ISSN: 1355-2546

Publication date: 1 December 1998

Abstract

A new family of thermoplastic binders has been developed for usage in fused deposition of ceramics (FDC). Mixtures were formulated consisting of a base binder, tackifier, wax, and plasticizer. The resultant formulation was chosen based on mechanical, rheological, and thermal property requirements. A formulation consisting of 100 parts base binder (by weight), along with 20 parts tackifier, 15 parts wax, and five parts plasticizer exhibited an optimized compromise of mechanical, rheological, and thermal properties. This formulation was compounded with 55 vol. per cent lead zirconate titanate (PZT) powder, and extruded into filaments with a diameter of 1.75mm and a length of approximately 50 (+/‐10) cm. The resulting filaments were used to fabricate functional piezoelectric ceramic devices via FDC. The binder development process is described, along with the associated mechanical, rheological, and thermal property data.

Keywords

Citation

McNulty, T., Mohammadi, F., Bandyopadhyay, A., Shanefield, D., Danforth, S. and Safari, A. (1998), "Development of a binder formulation for fused deposition of ceramics", Rapid Prototyping Journal, Vol. 4 No. 4, pp. 144-150. https://doi.org/10.1108/13552549810239012

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Publisher

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MCB UP Ltd

Copyright © 1998, MCB UP Limited

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