Effect Of Y2O3 And La2O3 On The Sinterability Of Γ-Alon Transparent Ceramics

Keywords

Pressureless sintering; Sintering additive; γ-AlON transparent ceramics

Abstract

The paper reports the use of Y2O3 and La2O3 co-doping as a composite sintering additive for the fabrication of γ-AlON transparent ceramics by pressureless sintering. The Y3+ enhanced the mobility of grain boundary and accelerated the grain growth, whereas the La3+ has the opposite effect on grain growth. The sintering additives could cause the formation of liquid phase during sintering, which would greatly promote the densification and eliminate pores. High transparent AlON ceramics with the in-line transmittance of 80.3% at 400nm wavelength have been prepared when the concentration of sintering additives was 0.12wt% Y2O3 and 0.09wt% La2O3.

Publication Date

1-1-2015

Publication Title

Journal of the European Ceramic Society

Volume

35

Issue

1

Number of Pages

23-28

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.jeurceramsoc.2014.07.016

Socpus ID

84908077851 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84908077851

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