FIELD: casting of articles with oriented and mono-crystalline structure, for example blades of gas turbine engines and plants.
SUBSTANCE: suspension contains, mass %: silicon sol binder including 20 - 30.8% of silica, 20 - 40; aluminum powder, 2 - 25; saturated aqueous solution of magnesium hydroxide, 1 - 8; refractory filler, the balance.
EFFECT: increased period of suspension "tenacity", improved strength of molds, increased yield of suitable cast products, enhanced ecological safety.
2 cl, 1 ex, 2 tbl
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