coefficient of expansion

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coefficient of expansion

(General Physics) the amount of expansion (or contraction) per unit length of a material resulting from one degree change in temperature. Also called: expansivity

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Noun

coefficient of expansion - the fractional change in length or area or volume per unit change in temperature at a given constant pressure

expansivity

coefficient - a constant number that serves as a measure of some property or characteristic

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There was also a belief among owners of cars with aluminum engines that suggested the metal be warmed up before normal driving because of the different coefficient of expansion between steel and aluminum components.

Common misconceptions about cars in Nigeria!

'Ours are usually made of a copper-tungsten alloy, which has almost the same coefficient of expansion as GaAs,' says Dr Jorg Neukum, marketing director at Coherent-Dilas.

Chilling out: Barbara Stumpp rounds up the latest methods of cooling laser diodes efficiently

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.

Understanding Weld Failures: Hard-surfacing failures without evidence of burrs indicate possible weld bond issues

Researches in [5-7] demonstrated that the friction coefficient of expansion bearings together with other factors should be considered during the fragility analysis of the bridge system.

Characterization of Nonstationary Mode Interaction of Bridge by Considering Deterioration of Bearing

[alpha] = coefficient of expansion of piping and other system components, per degree

The Fundamentals of Expansion Tanks

This is facilitated by a fortunate coefficient of expansion compatibility between the copper and the nonconductive fill.

Conductive inks vs. nonconductive inks for via fill: many nonconductive inks have CTE and TG values that more closely match the board material

The coefficient of expansion of the elastomer sheet n can be between 1.1 and 1.5.

Mathematical modelling of the performance of a twisting-ball display/Twisting-ball'i tuupi kuvari matemaatiline modelleerimine

And coefficient of expansion was determined by the following formula{(cheese bread volume - dough volume)/dough volume}x100.

Modified starches or stabilizers in preparation of cheese bread/ Amidos modificados ou estabilizantes na elaboracao de pao de queijo

[[beta].sup.*]: Coefficient of expansion with concentration

On the Influence of Soret and Dufour Effects on MHD Free Convective Heat and Mass Transfer Flow over a Vertical Channel with Constant Suction and Viscous Dissipation

Chris Liddiard, director of Acoustics & Structures, Henkel automotive group, "You can't join aluminum to steel without adhesive." 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.

Addressing automotive lightweighting: developments at Henkel--particularly in the area of resins--can have a significant impact on lightweighting autos

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.