Non-Contact Electric Field-Enhanced Abnormal Grain Growth In (K0.5Na0.5)Nbo3 Ceramics

Keywords

Abnormal grain growth; Electric field-assisted sintering; Lead-free piezoelectric ceramics; Liquid phase sintering

Abstract

The effect of a non-contact electric field on the sintering behavior of (K0.5Na0.5)NbO3 (KNN) ceramics was studied. The results revealed that the electric field can enhance the densification and grain growth, and promote abnormal grain growth in KNN ceramics. The phenomena are likely because the electric field promoted the formation of liquid phase, leading to enhanced mass transport. A simple thermodynamic model was proposed to explain the solid-liquid phase transformation under an electric field.

Publication Date

10-15-2017

Publication Title

Ceramics International

Volume

43

Issue

15

Number of Pages

12343-12347

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.ceramint.2017.06.099

Socpus ID

85020773907 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85020773907

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