Open AccessImprove dielectric properties of Lamellar Calcium Niobate ceramics by spark plasma sintering
Author(s) -
Xinxin Liu,
Xiong Xie,
Yunling Zhai,
Liang Wang
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/729/1/012011
Subject(s) - spark plasma sintering , dielectric , materials science , ceramic , lamellar structure , sintering , plasma , composite material , mineralogy , optoelectronics , chemistry , physics , quantum mechanics
The structure and dielectric properties of HCa 2 Nb 3 O 10 ·1.5H 2 O (HCNO) and its exfoliated products (e-HCNO) ceramics were investigated. Where two-dimensional e-HCNO sheets were obtained by ion-exchange and exfoliating consequently. Spark plasma sintering (SPS) was introduced for products processing. After which, the dielectric constant of e-HCNO is 1300 and the loss is 0.002 at 2 M Hz. Compared to ordinary solid phase sintering, the dielectric constant of ceramics was found to be directly improved by the SPS processing.