Synthesis and Reaction Mechanism of Ti3SiC2 by Molten Salt Method from Ti-Si-Fe Alloy

Titanium silicon carbide (Ti3SiC2) were obtained by molten salt synthesis method using the Ti-Si-Fe alloy extracted from high titania blast furnace slag and natural graphite as the raw materials. The phase composition, microscopic structure of the products were characterized by powder X-ray diffract...

Full description

Saved in:
Bibliographic Details
Published in:Key engineering materials 2018-04, Vol.768, p.159-166
Main Authors: Wu, Hong Dan, Xiong, Si, Ke, Chang Ming, Lei, Xin Rong, Zhang, Jin Hua
Format: Article
Language:English
Subjects:
Aluminum
Blast furnace practice
Blast furnace slags
Chemical synthesis
Crystal growth
Electron microscopes
Iron
Molten salts
Morphology
Phase composition
Raw materials
Reaction mechanisms
Silicon carbide
Titanium base alloys
Titanium dioxide
Titanium silicon carbide
X ray powder diffraction
X-ray diffraction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Titanium silicon carbide (Ti3SiC2) were obtained by molten salt synthesis method using the Ti-Si-Fe alloy extracted from high titania blast furnace slag and natural graphite as the raw materials. The phase composition, microscopic structure of the products were characterized by powder X-ray diffraction, scanning electron microscope and transmission electron microscope. The influence of firing temperature and chloride salts species on the phase and morphology of the products were investigated. The results indicated that the synthetic temperature of Ti3SiC2 by molten salt synthesis method was about 100 °C, which was lower than that without molten salts. The “dissolution-precipitation” mechanism governed the overall molten salt synthesis process. The lamellar Ti3(Si,Al)C2 crystal growth obeyed by a two-dimensional ledge growth mechanism.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.768.159