Eliminating The Negative Effect Of Monoclinic Nb2O5 On Electrical Properties Of (K0.5Na0.5)Nbo3 Ceramics By Two-Step Sintering

Keywords

monoclinic phase; niobium pentoxide; piezoelectric materials; two-step sintering

Abstract

This study investigates the electrical properties of (K0.5Na0.5)NbO3 (KNN) lead-free piezoelectric ceramics prepared by using monoclinic Nb2O5 as the starting material. The results reveal that the samples prepared by two-step sintering procedure are much better than those prepared by conventional sintering procedure. The piezoelectric constant (d33) reaches the value measured from the samples prepared from orthorhombic Nb2O5, suggesting the two-step sintering procedure could be an effective method to remove the negative effect of monoclinic Nb2O5. The underlying mechanism for the improving effect is discussed.

Publication Date

9-1-2017

Publication Title

International Journal of Applied Ceramic Technology

Volume

14

Issue

5

Number of Pages

987-991

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1111/ijac.12726

Socpus ID

85020536077 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85020536077

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