FIELD: chemistry.
SUBSTANCE: invention relates to compositions of ceramic mixtures which can be used in making buttons. The ceramic mixture contains the following components, wt %: kaolin 71.3-75.5; potsherd 6.0-10.0; glycerol 0.5-0.7; bone ash 14.0-17.0; talc 3.0-4.0.
EFFECT: high strength of the buttons.
1 tbl
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|
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|
RU2481306C1 |
