1998 / DB reference year
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Author McNulty, T F. Mohammadi, F. Bandyopadhyay, A. Shanefield, D J. Danforth, S C. Safari, A.
Source Rapid Prototyping Journal. v 4 n 4 1998. p 144-150.
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 1.75 mm and a length of approximately 50 ( plus / minus 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. (Auth abstract) [References: 18] XX