coefficient of thermal expansion


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coefficient of thermal expansion

The change in the dimensions of a material when its temperature is raised 1°C. In dentistry, if the relative expansion and contraction of restorative materials, casts, or appliances are not accounted for, the patient may have problems with improper fitting, microleakage, or adhesive debonding.
See also: coefficient

coefficient of thermal expansion,

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8 @ 1 GHz), a thermal conductivity of 170 W/mK, a coefficient of thermal expansion (4.
It exhibits high stiffness and a low coefficient of thermal expansion.
Some tools may be made entirely of aluminum so the coefficient of thermal expansion matches that of the aluminum aircraft parts they are assembling.
Tachyon-100G has identical electrical properties as its predecessor Tachyon; however, the Z-axis coefficient of thermal expansion (CTE) on Tachyon-100G is more than 30% lower than Tachyon, making it more suitable for fabricating high-layer count, 0.
The other features of this exotic material include being tailor-made coefficient of thermal expansion, high thermal conductivity and treated precision surface.
the device is designed to measure the coefficient of thermal expansion, phase transitions, measurement of shrinkage during the sintering process in the production of advanced ceramic materials in the temperature range min.
It is three times less than what was observed when overcasting steel rod, probably because of the lower coefficient of thermal expansion of steel and the higher resistance opposed by steel to the compressive thermal stresses applied by the surrounding aluminum as it cools to room temperature.
The first material has a different coefficient of thermal expansion than the second material.
After aging, the changes in the structure of the polymers were studied by determining different material parameters, such as modulus of elasticity, glass transition temperature, melting point, coefficient of thermal expansion, water absorption, and crystallinity, and changes in the chemical structure with several techniques, including thermomechanical analysis, differential scanning calorimetry, Fourier-transform infrared spectroscopy, moisture analysis, and a precision scale.
The commissioner said the disadvantage of leadite, however, is that it has a different coefficient of thermal expansion than that of the pipe it seals.
Its coefficient of thermal expansion is 45-55 ppm/degree C, and it is serviceable from negative 60 degrees F to positive 275 degrees F.
An example of such a composite is Invar, an iron-nickel alloy with a uniquely low coefficient of thermal expansion.

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