Rheological characterization of powder injection moulding using feedstock based on aluminium oxide and multicomponent water-soluble polymer binder

0363412 - ÚH 2012 RIV GR eng C - Konferenční příspěvek (zahraniční konf.)
Hausnerová, B. - Marcaníková, L. - Filip, Petr - Sáha, P.
Rheological characterization of powder injection moulding using feedstock based on aluminium oxide and multicomponent water-soluble polymer binder.
Recent Advances in Fluid Mechanics and Heat & Mass Transfer. Athens: WSEAS Press, 2011, s. 245-250. ISBN 978-1-61804-026-8.
[IASME/WSEAS International Conference on Fluid Mechanics & Aerodynamics (FMA '11) /9./, IASME/WSEAS International Conference on Heat Transfer, Thermal Engineering and Environment (HTE '11) /9./. Florence (IT), 23.08.2011-25.08.2011]
Grant CEP: GA ČR GA103/08/1307
Grant ostatní: GA MŠk(CZ) ED2.1.00/03.0111
Výzkumný záměr: CEZ:AV0Z20600510
Klíčová slova: powder injection moulding * viscosity * aluminium oxide * polymer binder
Kód oboru RIV: BK - Mechanika tekutin

Rheological analysis of powder injection moulding of feedstock based on aluminium oxide powder and multicomponent partly water-soluble polymeric binder is carried out with the aim to produce the defectfree and non-porous parts. As this process is characterized by the flow of highly filled (60 vol.%) compound into a mould cavity, rheological properties supplemented by thermal and pressure-volume-temperature characteristics are measured and described. Structural changes of the feedstock caused by shear deformation are quantified in terms of yield stresses obtained using the Herschel-Bulkley and Casson models. For a description of non-monotonous flow behaviour of the feedstock, the rheological model valid in the whole shear rate range measured is developed.
Trvalý link: http://hdl.handle.net/11104/0199315