OF b-SPODUMENE COMPOSITION GLASS CERAMIC SYNTHESIS.
PART 2. STUDY OF THE POSSIBILITY OF USING PRODUCTION WASTE
IN THE STAGE OF SLIP PREPARATION AND WORKPIECE FORMATION
E. I. Suzdal’tsev
Translated from Novye Ogneupory, No. 2, pp. 41 – 46, February 2015.
Original article submitted June 11, 2014.
Results are given for a study of features of workpiece casting technology from aqueous lithium aluminum sili
cate glass slips. Production examples are developed reducing raw material loss to a minimum during slip prep
aration and workpiece molding.
Keywords: slip, amorphous and crystallized glass, density, grain size composition, workpiece molding.
Production methods for preparing highly-concentrated
slips of inorganic materials are not new, and considerable at-
tention has been devoted to them in the pages of domestic
and overseas publications. At the same time, known publica-
tions are aimed at studying suspension rheological properties
without considering and analyzing the possibilities of prepar-
ing specific objects.
In view of this study of technology for preparing aqueous
slips of lithium aluminum silicate glass is of considerable
practical interest since for more than ten years it has served
as a basis for preparing objects for radio engineering pur
poses. Recently the main technical questions have been re
solved connected with milling conditions for starting mate
rial (amorphous glass or glass crystallized to b-spodumene
phase), stabilization of original slips, workpiece molding,
and production parameters have been determined for slips
applied to a mold and size of a specific object [1 – 5]. How
ever, questions of saving raw material during product manu
facture, as for technology questions, are important since to a
considerable extent they affect the cost of a production unit
and determine its competitiveness. Therefore under mass
production conditions for objects of this material it is neces
sary to turn attention to all forms of operations in slip prepa
ration and workpiece molding stages with the aim of reduc-
ing starting material losses.
Refractories and Industrial Ceramics Vol. 56, No. 1, May, 2015
1083-4877/15/05601-0085 © 2015 Springer Science+Business Media New York
Part 1 of the article published in Novye Ogneupory No. 12,
24 – 28 (2014).
GNTs RF OAO ONPP Tekhnologiya, Obninsk, Kaluga Region,
Fig. 1. Generalized scheme for lithium aluminum silicate glass sus
pension quality due to moisture content during milling. Region: 1 )
suspension transition into solid condition; 2 ) highly dense high-vis
cosity suspensions; 3 ) highly dense suspensions with satisfactory
casting properties; 4 ) suspension transition from high-density to
low-density; 5 ) low-density suspensions with pronounced sedimen