Utilization of a phosphate ester as a dispersant for SiAlON based ceramics

A. Ceylan*, E. Suvaci, H. Mandal

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

Aqueous dispersions of SiAlON forming powders (Si3N4, AlN and Y2O3) were obtained. Dispersibility of powders was found to be improved by addition of sodium tripolyphosphate. Stable aqueous suspensions of SiAlON forming powders were prepared by using a phosphate ester, sodium tripolyphosphate (STPP, Na5P3O10). Effect of the STPP on rheological properties of the powder mixture was investigated by zeta potential measurements, sedimentation and milling studies. It has been shown that addition of the STPP to the aqueous SiAlON forming powder mixture improves the dispersion behavior significantly. These results suggest that STPP can be utilized as a dispersant in such ceramic systems.

Original languageEnglish
Title of host publicationNitrides and Oxynitrides III - Proceedings of the 5th International Symposium on Nitrides
PublisherTrans Tech Publications Ltd
Pages71-77
Number of pages7
ISBN (Print)0878494391, 9780878494392
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event5th International Symposium on Nitrides - Eskisehir, Turkey
Duration: 3 Apr 20065 Apr 2006

Publication series

NameMaterials Science Forum
Volume554
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference5th International Symposium on Nitrides
Country/TerritoryTurkey
CityEskisehir
Period3/04/065/04/06

Keywords

  • Sedimentation
  • SiAlON
  • Sodium tripolyphosphate
  • Suspension
  • Zeta potential

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