Effects of inhomogenization on sintering behavior of Ni/Al 2O3 powder mixtures

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

2 Citations (Scopus)

Abstract

Aiming at the modification of the sinterability of metal/ceramic powder mixtures, the influence of the homogeneity in microstructure on the sintering behavior is examined. Ni/Al2O3 specimens, with ratios ranging from 0/100 to 100/0, are prepared by compaction through two different procedures of mixing and granulating, to change the degree of particle dispersion. The sintering stress and the viscosity of the specimens are measured by sinter-compression tests to consider the sinterability from the viewpoint of both driving force and resistance. The sintering rate of the inhomogeneous compacts, with agglomeration of powder particles, is larger than that of the homogeneous compacts. This is because the viscosity becomes low, but the sintering stress does not change much by inhomogenizing the microstructure.

Original languageEnglish
Title of host publicationMultiscale, Multifunctional and Functionally Graded Materials
Pages245-250
Number of pages6
DOIs
Publication statusPublished - Feb 9 2010
Externally publishedYes
Event10th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials, MM and FGMs - Sendai, Japan
Duration: Sep 22 2008Sep 25 2008

Publication series

NameMaterials Science Forum
Volume631-632
ISSN (Print)0255-5476

Other

Other10th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials, MM and FGMs
CountryJapan
CitySendai
Period9/22/089/25/08

Fingerprint

Powders
sintering
Sintering
Viscosity
viscosity
microstructure
Microstructure
compression tests
Cermets
agglomeration
homogeneity
Compaction
Agglomeration
ceramics
metals

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Shinagawa, K. (2010). Effects of inhomogenization on sintering behavior of Ni/Al 2O3 powder mixtures. In Multiscale, Multifunctional and Functionally Graded Materials (pp. 245-250). (Materials Science Forum; Vol. 631-632). https://doi.org/10.4028/www.scientific.net/MSF.631-632.245

Effects of inhomogenization on sintering behavior of Ni/Al 2O3 powder mixtures. / Shinagawa, Kazunari.

Multiscale, Multifunctional and Functionally Graded Materials. 2010. p. 245-250 (Materials Science Forum; Vol. 631-632).

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

Shinagawa, K 2010, Effects of inhomogenization on sintering behavior of Ni/Al 2O3 powder mixtures. in Multiscale, Multifunctional and Functionally Graded Materials. Materials Science Forum, vol. 631-632, pp. 245-250, 10th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials, MM and FGMs, Sendai, Japan, 9/22/08. https://doi.org/10.4028/www.scientific.net/MSF.631-632.245
Shinagawa K. Effects of inhomogenization on sintering behavior of Ni/Al 2O3 powder mixtures. In Multiscale, Multifunctional and Functionally Graded Materials. 2010. p. 245-250. (Materials Science Forum). https://doi.org/10.4028/www.scientific.net/MSF.631-632.245
Shinagawa, Kazunari. / Effects of inhomogenization on sintering behavior of Ni/Al 2O3 powder mixtures. Multiscale, Multifunctional and Functionally Graded Materials. 2010. pp. 245-250 (Materials Science Forum).
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