Low-temperature sintering of high-siliceous clay under conditions of oxygen deficiency

In the work, the processes of phase reconstruction and properties of ceramics obtained from high-siliceous clay-sand, clay-cullet, and clay-sand-cullet mixtures are considered. It is possible to perform plastic molding of blanks from the given mixtures due to the presence of montmorillonite in clay...

Full description

Saved in:
Bibliographic Details
Published in:Science of sintering 2021, Vol.53 (2), p.137-153
Main Authors: Aguilar, Pedro, Nicolas, Mario, Kakazey, Mykola, Tapia, Rene, Cano, Marcos, Matus, Roberto, Pi, Puig, Nava, Manuel, Vlasova, Marina
Format: Article
Language:English
Subjects:
Clay
Feldspars
Glass ceramics
high-siliceous clay
Hypoxia
Infrared spectroscopy
Low temperature
low-melting glass
Microscopy
Montmorillonite
properties of ceramics
Sand
Sintering
Sintering (powder metallurgy)
Spectrum analysis
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In the work, the processes of phase reconstruction and properties of ceramics obtained from high-siliceous clay-sand, clay-cullet, and clay-sand-cullet mixtures are considered. It is possible to perform plastic molding of blanks from the given mixtures due to the presence of montmorillonite in clay and sand and sintering at 800 oC for 8 h under conditions of oxygen deficiency. Depending on the composition of the initial mixtures, specimens ranging in color from gray to black can be obtained. It has been established by the XRD, IR spectroscopy, and electron microscopy methods that the synthesized material is glass ceramics consisting of quartz, feldspars, and a glass phase. Depending on the content of the initial components in the mixtures, it is possible to obtain glass ceramics with high strength properties or coarse-pored glass ceramics whose properties are similar to those of foamed ceramics.
ISSN:0350-820X
1820-7413
DOI:10.2298/SOS2102137A