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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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

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.

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

is the volumetric coefficient of expansion with concentration, K(T) is the thermal conductivity, [C.

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

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.

Materials & packaging

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.

Looking back in time inspires new protective coatings

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.

Breakthrough labware withstands the shock: robust fused quartz labware provides researchers with an accurate and safe testing vessel

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.

Metal lead frame

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.