Production of mesophase carbon by PIM - Tailoring gel strength of agar binder

Journal article
(Original article)


Publication Details

Author(s): Singer R, Sommer M, Kellermann K
Journal: Powder Technology
Publication year: 2013
Volume: 237
Pages range: 228-232
ISSN: 0032-5910
Language: English


Abstract


This paper reports the results of a study on a water based binder with agar as a backbone for the production of carbon parts by powder injection moulding of carbon mesophase. The binder strength or gel strength of agar-binder is directly depended on the agar concentration in water and can be increased drastically by adding potassium tetraborate-4-hydrate. As the drying shrinkage of powder injection moulded samples is depending on the binder strength, brown and sinter density also increases with increasing agar and additive content. The packing density of samples increases from 60% (green) up to 83% (brown) during drying. By adding gel strengthening additives the agar content can be decreased and as this reduces the elusion of gaseous degradation products during thermal treatment debinding and sintering defects are eliminated. In this way stiffness of carbon material was increased from 7. MPa to 16. GPa. © 2013.



FAU Authors / FAU Editors

Kellermann, Karsten Dr.-Ing.
Zentralinstitut für Neue Materialien und Prozesstechnik
Singer, Robert Prof. Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Sommer, Michael
Zentralinstitut für Neue Materialien und Prozesstechnik


How to cite

APA:
Singer, R., Sommer, M., & Kellermann, K. (2013). Production of mesophase carbon by PIM - Tailoring gel strength of agar binder. Powder Technology, 237, 228-232. https://dx.doi.org/10.1016/j.powtec.2013.01.004

MLA:
Singer, Robert, Michael Sommer, and Karsten Kellermann. "Production of mesophase carbon by PIM - Tailoring gel strength of agar binder." Powder Technology 237 (2013): 228-232.

BibTeX: 

Last updated on 2018-07-12 at 20:50