Production and thermal stability of lithium metasilicate pellets with controlled grain size and porosity

A. J. Flipot; E. Brauns; P. Diels

doi:10.1016/S0920-3796(89)80137-1

Production and thermal stability of lithium metasilicate pellets with controlled grain size and porosity

A. J. Flipot, E. Brauns, P. Diels

Research output › peer-review

Abstract

Lithium metasilicate pellets with tailored grain size and open porosity have been produced with densities from 60% TD to more than 95% TD. These characteristics are obtained by choosing appropriate preparation conditions among the five fabrication routes discussed in this paper. An investigation of the influence of deviations from stoichiometry shows that density, grain size, porosity and recrystallization are affected by the type of the secondary phase but not by its quantity. The effect of the fabrication conditions on specific surface area and moisture content is also mentioned. Thermal stability tests were performed between 500 °C and 925 °C. Dimensional and structural changes were not detected up to 700 °C. Above 750 °C, changes were observed in pellet weight, dimension and density as well as in grain size and porosity. These changes depend on the type of the secondary phase, the fabrication conditions, the pellet structure and texture. Minor changes in stoichiometry were also established.

Original language	English
Pages (from-to)	387-391
Number of pages	5
Journal	fusion engineering and design
Volume	8
Issue number	C
DOIs	https://doi.org/10.1016/S0920-3796(89)80137-1
State	Published - 1989

ASJC Scopus subject areas

Civil and Structural Engineering
Nuclear Energy and Engineering
General Materials Science
Mechanical Engineering

Access to Document

10.1016/S0920-3796(89)80137-1

Cite this

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title = "Production and thermal stability of lithium metasilicate pellets with controlled grain size and porosity",

abstract = "Lithium metasilicate pellets with tailored grain size and open porosity have been produced with densities from 60% TD to more than 95% TD. These characteristics are obtained by choosing appropriate preparation conditions among the five fabrication routes discussed in this paper. An investigation of the influence of deviations from stoichiometry shows that density, grain size, porosity and recrystallization are affected by the type of the secondary phase but not by its quantity. The effect of the fabrication conditions on specific surface area and moisture content is also mentioned. Thermal stability tests were performed between 500 °C and 925 °C. Dimensional and structural changes were not detected up to 700 °C. Above 750 °C, changes were observed in pellet weight, dimension and density as well as in grain size and porosity. These changes depend on the type of the secondary phase, the fabrication conditions, the pellet structure and texture. Minor changes in stoichiometry were also established.",

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AU - Brauns, E.

AU - Diels, P.

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AB - Lithium metasilicate pellets with tailored grain size and open porosity have been produced with densities from 60% TD to more than 95% TD. These characteristics are obtained by choosing appropriate preparation conditions among the five fabrication routes discussed in this paper. An investigation of the influence of deviations from stoichiometry shows that density, grain size, porosity and recrystallization are affected by the type of the secondary phase but not by its quantity. The effect of the fabrication conditions on specific surface area and moisture content is also mentioned. Thermal stability tests were performed between 500 °C and 925 °C. Dimensional and structural changes were not detected up to 700 °C. Above 750 °C, changes were observed in pellet weight, dimension and density as well as in grain size and porosity. These changes depend on the type of the secondary phase, the fabrication conditions, the pellet structure and texture. Minor changes in stoichiometry were also established.

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