Experimental Set up to find the

coefficient of linear expansionIn environments with wide temperature range, thermal stress due to the difference in the

coefficient of linear expansion between the chip resistor and the mounting board is repeatedly applied, causing cracks in the solder fillets, eventually resulting in a variation in resistance.

The following thermophysical properties of CM were investigated for determining the optimal ratio between the concentration of polyester resin (PR) and epoxy oligomer in the binder: the Martens thermal resistance temperature, the thermal

coefficient of linear expansion, the glass transition temperature, and the shrinkage.

While the track breaks due to

coefficient of linear expansion in summer, the same happens in winter due to contraction.

7) Average

coefficient of linear expansion [beta] = 1.15 x [10.sup.-5] 1/K;

The

coefficient of linear expansion a is the relative extension of a coupon at the temperature increase by 1[degrees]C.

It is good at damping out vibrations, and its along-grain temperature

coefficient of linear expansion rivals invar!

* Millennium V is based on a PC/ABS alloy with an exceptionally low

coefficient of linear expansion and outstanding dimensional stability in large, precisely fitting panels for transportation, recreational, and building applications.

The EMC 2600 has a lower

coefficient of linear expansion at 150 Fahrenheit degrees (83 Celsius degrees) above its [T.sub.g] than the polyetherimide has in its normal operating range.

where [alpha][.sub.1] is the

coefficient of linear expansion, and L[.sub.1] and L[.sub.2] are the lengths of the specimen at temperatures (or time) T[.sub.1] and T[.sub.2], respectively.

To obtain values for the volumetric thermal expansion coefficients, [[Beta].sub.m] and [[Beta].sub.p], thermomechanical analysis (TMA) of a sample that had previously been cured in the dilatometer was conducted to obtain the

coefficient of linear expansion for the cured polymer.

Processable with conventional RIM equipment, Bayflex 190 also promises low moisture absorption, low

coefficient of linear expansion, superior toughness, excellent self-release from the mold, and ease in painting.