EFFECT OF NICKEL NIOBATE B-SITE PRECURSORS ON PHASE FORMATION, MICROSTRUCTURE AND DIELECTRIC PROPERTIES OF PEROVSKITE PNN CERAMICS

Author:

ANANTA S.1,YIMNIRUN R.1,KHAMMAN O.1

Affiliation:

1. Department of Physics, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand

Abstract

Relaxor perovskite lead nickel niobate (PNN) ceramics were fabricated by using B-site precursor method, in which both columbite- NiNb 2 O 6 and corundum- Ni 4 Nb 2 O 9 were separately employed as nickel niobate B-site precursors. It has been found that optimization of sintering condition can successfully lead to highly dense and pure PNN ceramics in both routes. Between the two B-site precursor routes, pure perovskite PNN ceramics with slightly better densification and dielectric properties can be produced by using the columbite-route.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Materials Science

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