Methods of increasing strength of aluminosilicate ceramics based on semi-flint clay raw materials

Tatyana V. Vakalova, Larisa P. Devyashina, Anastasia P. Potapova

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The paper investigates the peculiarities of the chemical and mineralogical compositions of semi-flint kaolins and their behavior under heating up to 1500 °C. It was found that the sintering process of kaolin clay raw materials depends on the temperature of their preliminary calcining, method of milling after the thermal treatment and application of mineralizing additives. In the case of Borovichy kaolin, preliminary calcining at 850 °C and 980 °C and its subsequent milling increase the material strength after sintering calcining at the temperature of 1400-1450 °C at the expense of uniform sintering and the formation of a homogeneous microstructure of sintered material.

Original languageEnglish
Title of host publicationHigh Technology
Subtitle of host publicationResearch and Applications 2016 - HTRA-2016
EditorsGeorgii E. Osokin, Ekaterina A. Kulinich
PublisherTrans Tech Publications Ltd
Pages426-430
Number of pages5
ISBN (Print)9783035711356
DOIs
Publication statusPublished - 2017
Event5th International Science and Engineering Conference on High Technology: Research and Applications, HTRA 2016 - Tomsk, Russian Federation
Duration: 5 Dec 20167 Dec 2016

Publication series

NameKey Engineering Materials
Volume743 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

Conference5th International Science and Engineering Conference on High Technology: Research and Applications, HTRA 2016
CountryRussian Federation
CityTomsk
Period5.12.167.12.16

Keywords

  • Kaolin
  • Mineralizing additives
  • Mullite synthesis
  • Semi-flint clays
  • Sintering

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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