IMPROVEMENT IN FLOWABILITY, OXIDATION RESISTANCE AND WATER WETTABILITY OF GRAPHITE POWDERS BY TIO2 COATING

Authors
YU JK UENO S HIRAGUSHI K
Citation
Jk. Yu et al., IMPROVEMENT IN FLOWABILITY, OXIDATION RESISTANCE AND WATER WETTABILITY OF GRAPHITE POWDERS BY TIO2 COATING, Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 104(6), 1996, pp. 481-485
Citations number
11
Categorie Soggetti
Material Science, Ceramics
Journal title
Nippon Seramikkusu Kyokai gakujutsu ronbunshi → ACNP
ISSN journal
09145400
Volume
104
Issue
6
Year of publication
1996
Pages
481 - 485
Database
ISI
SICI code
0914-5400(1996)104:6<481:IIFORA>2.0.ZU;2-T
Abstract
Surface treatment is one of the most efficient ways to improve the wat er wettability, flowability and oxidation resistance of graphite powde rs used in castable refractories. In this study, the above properties of graphite powders coated with TiO2 (formed by heating Ti(OCH2CH2CH2C H3)(4) at 120 degrees C in air) were investigated. The results showed that the wettability and flowability of the graphite powders were grea tly improved when the amount of TiO2 coated was more than 0.5 mass%, a nd the oxidation resistance increased with increasing amount of TiO2 c oated. The above improvement in the properties of the graphite powders was considered to be related to the changes in the size, shape and su rface state of the powders.