Detail publikace

Osmotic drying of gelcast bodies in liquid desiccant

TRUNEC, M.

Originální název

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Osmotic drying of gelcast alumina bodies was carried out in water solutions of various polyethylene glycols (PEGs) with molecular weight ranging from 1000 to 80000 g/mol. Up to 30 % of the water content could be removed from the gelcast bodies immersed in a 43 wt% solution of PEG 80000. It was found that PEG 1000 was a less effective desiccant than the PEGs with higher molecular weights, even if the osmotic pressure was similar (4.9 MPa). The smaller PEG molecules penetrated the gelled bodies and reduced the dewatering. Moreover, the penetrated PEG molecules affected the pore structure of green bodies and in this way influenced the sintering behaviour. The time dependence of dewatering and the effect of the size of gelcast bodies were investigated and correlated with the green body structure and sintering behaviour in order to optimize the osmotic drying process.

Klíčová slova

Al2O3; PEG; Gelcasting; Drying; Osmotic

Autoři

TRUNEC, M.

Rok RIV

2011

Vydáno

1. 11. 2011

Nakladatel

Elsevier Science

Místo

THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND

ISSN

0955-2219

Periodikum

Journal of the European Ceramic Society

Ročník

Číslo

Stát

Spojené království Velké Británie a Severního Irska

Strany od

2519

Strany do

2524

Strany počet

BibTex

@article{BUT88508,
  author="Martin {Trunec}",
  title="Osmotic drying of gelcast bodies in liquid desiccant",
  journal="Journal of the European Ceramic Society",
  year="2011",
  volume="31",
  number="14",
  pages="2519--2524",
  issn="0955-2219"
}