coefficient of expansion


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coefficient of expansion

n
(General Physics) the amount of expansion (or contraction) per unit length of a material resulting from one degree change in temperature. Also called: expansivity
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.coefficient of expansion - the fractional change in length or area or volume per unit change in temperature at a given constant pressure
coefficient - a constant number that serves as a measure of some property or characteristic
References in periodicals archive ?
Some radial cracking of the hard-surfacing overlay is normal-the overlay usually has a greater coefficient of expansion than the base metal, and upon cooling shrinks more than the base metal, which is relieved by the radial cracking.
This is facilitated by a fortunate coefficient of expansion compatibility between the copper and the nonconductive fill.
And coefficient of expansion was determined by the following formula{(cheese bread volume - dough volume)/dough volume}x100.
Among the reasons is the coefficient of expansion diference between the two metals, which can be accommodated by the bonding provided by high-performance adhesives.
However, pure copper, limits you to small packages of 1-mm square or less due to the difference in the coefficient of expansion between the die and the copper.
At the same time, they have unique high performance characteristics not associated with OPC, such as greater chemical and thermal resistance, acid and alkali resistance, bacteria retardancy, maintenance of alkali condition and therefore retardation of oxidation and rust, water retardancy, a low coefficient of expansion, and other improved mechanical properties, according to Panitz.
Flasks made of fused quartz, because of the high temperature properties and the low coefficient of expansion, will not break due to the heat or temperature shock.
Not only does the thermal coefficient of molding material expansion match the coefficient of expansion of the boards, but there is also an ESD protective diode concealed in the molding.
Not only does the thermal coefficient of expansion of the molding material precisely match the coefficient of expansion of the boards, but there is also an ESD protective diode concealed in the molding.

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