Designing a model for polymeric binder degradation, volatilization and diffusion through porous media

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The incorporation of a temporary polymeric binder into the processing of ceramic or metal powders is a common practice used to make a green body with sufficient strength to permit processing prior to sintering. Binders are particularly important for 3D printing and other additive manufacturing processes. However, the binder's removal is essential for the structural integrity of the final product; any remaining binder is a defect which can, for example, compromise the mechanical strength. A better understanding of the binder's degradation, volatilization, and diffusive and convective flows out of the porous green body can be obtained through the development of a model that combines easy-to-obtain empirical parameters with kinetics, thermodynamics and transport phenomena. This will enable the development of an optimal heating profile that minimizes the residual binder at the same time as maximizing the removal efficiency.

Original languageEnglish (US)
Title of host publicationMaterials Science and Technology Conference and Exhibition 2015, MS and T 2015
PublisherAssociation for Iron and Steel Technology, AISTECH
Pages651-659
Number of pages9
ISBN (Electronic)9781510813939
StatePublished - Jan 1 2015
EventMaterials Science and Technology Conference and Exhibition 2015, MS and T 2015 - Columbus, United States
Duration: Oct 4 2015Oct 8 2015

Publication series

NameMaterials Science and Technology Conference and Exhibition 2015, MS and T 2015
Volume1

Other

OtherMaterials Science and Technology Conference and Exhibition 2015, MS and T 2015
CountryUnited States
CityColumbus
Period10/4/1510/8/15

All Science Journal Classification (ASJC) codes

  • Materials Science (miscellaneous)
  • Mechanics of Materials

Keywords

  • Binder removal
  • Diffusion
  • Modeling
  • TGA
  • Thermal degradation

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  • Cite this

    Prati, J. L., Matthewson, M., & Haber, R. (2015). Designing a model for polymeric binder degradation, volatilization and diffusion through porous media. In Materials Science and Technology Conference and Exhibition 2015, MS and T 2015 (pp. 651-659). (Materials Science and Technology Conference and Exhibition 2015, MS and T 2015; Vol. 1). Association for Iron and Steel Technology, AISTECH.