Acceptor Doping Effects In (K0.5Na0.5)Nbo3 Lead-Free Piezoelectric Ceramics

Keywords

Acceptor dopant; Lead-free piezoelectric ceramics; Potassium sodium niobate

Abstract

In this paper, the effects of acceptor dopants on the synthesis, sintering and properties of KNN ceramics were studied for (K0.5Na0.5)(Nb0.994A0.006)O3-δ (A=Ge4+, Ga3+, Zn2+, Mn2+, Ni2+, and Cu2+) ceramics. The results reveal that the eutectic phase(s) is (are) formed between the acceptor oxide and alkali metal carbonate, thereby significantly improving the sinterability of the materials. Compared to the trivalent and tetravalent acceptor dopants, divalent dopant can lead to higher Qm values, most likely due to the formation of defect complexes.

Publication Date

2-1-2016

Publication Title

Ceramics International

Volume

42

Issue

2

Number of Pages

2899-2903

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.ceramint.2015.11.016

Socpus ID

84955189483 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84955189483

This document is currently not available here.

Share

COinS