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Addition of ______ to aluminum improves fluidity.

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in Food Packaging Technology by (63.0k points)
Addition of ______ to aluminum improves fluidity.

(a) vanadium

(b) silicon

(c) manganese

(d) copper

The question was asked in unit test.

Question is from Metal as Packaging Material in section Metal Packaging Materials of Food Packaging Technology

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The correct choice is (b) silicon

The explanation is: Addition of silicon to aluminum improves fluidity. It does so by reducing the melting temperature of the alloy. Silicon alone has non-heat treatable effects. But, its combination with aluminum and magnesium makes a heat-treatable precipitation hardening alloy.

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