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Silicon has a Brittle-to-Ductile transition at around ~500 C.
Impact test determines the amount of energy absorbed by a material during fracture. This absorbed energy is a measure of a given material's toughness and acts as a tool to study temperature-dependent brittle-ductile transition. It is to determine whether the material is brittle or ductile in nature.
is polythene ductile or brittle?
it is ductile. For hardened stainless steel it gets less ductile, but not brittle.
Brittle
Impact test determines the amount of energy absorbed by a material during fracture. This absorbed energy is a measure of a given material's toughness and acts as a tool to study temperature-dependent brittle-ductile transition. It is to determine whether the material is brittle or ductile in nature.
Ductile and brittle are NOT the same thing. In fact, almost the opposite.
It varies. Firstly, it's only present in ferrittic steels like carbon steel, not in most kinds of stainless. Secondly, it depends on the grain size of the steel microstructure, with smaller grains giving a lower transition temperature. The third factor is alloying elements. Silicone and Nickel content tends to raise transition temperature. With modern steels the transition temperature is about -60 degrees celcius. Older steels may have a transition temperature at room temperature, or, more often, at 0 or -10 degrees.
Doubtful. Ductile by definition means "not brittle, easily stretched, malleable".
Sulfur is brittle.
A fluoride salt is brittle.
brittle