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Effects of particle size and dispersion methods of In 2 O 3 ‐SnO 2 mixed powders on the sintering properties of indium tin oxide ceramics
Author(s) -
Mei Fangsheng,
Yuan Tiechui,
Li Ruidi,
Zhou Libo,
Qin Kai
Publication year - 2017
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12790
Subject(s) - materials science , ball mill , particle size , sintering , ceramic , grain size , relative density , particle size distribution , calcination , dispersion (optics) , metallurgy , chemical engineering , biochemistry , chemistry , physics , optics , engineering , catalysis
Three group samples were used to investigate the effects of particle size and dispersion methods of In 2 O 3 ‐SnO 2 mixed powders on the sintering properties of ITO ceramics by BET , SEM , XRD , and EPMA , etc. High‐density (99.8% of TD ) ITO ceramics, with dimensions of 350 × 250 × 8 mm 3 for the industrial application, were obtained by the mixed powders of In 2 O 3 calcined at 1000°C and SnO 2 with BET 6.0 ± 0.5 m 2 /g and collocation use of ball mill for 300 minutes, stirred mill for 60 minutes, and sand mill for 3 minutes. The results indicate that: (i) the larger the SnO 2 /In 2 O 3 particle size ratio, the higher the density of ITO ceramics, (ii) the dispersion of mechanical ball‐mill methods for nanosized In 2 O 3 and SnO 2 powders is beneficial to the densification and structural homogeneity, and (iii) the smaller the relative grain size, the more uniform the distribution of grain size.