When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Thermal expansivities of the elements - Wikipedia

    en.wikipedia.org/wiki/Thermal_expansivities_of...

    As quoted in an online version of: David R. Lide (ed), CRC Handbook of Chemistry and Physics, 84th Edition.CRC Press. Boca Raton, Florida, 2003; Section 4, Properties of the Elements and Inorganic Compounds; Physical Properties of the Rare Earth Metals

  3. Titanium nitride - Wikipedia

    en.wikipedia.org/wiki/Titanium_nitride

    TiN has a Vickers hardness of 1800–2100, hardness of 31 ± 4 GPa, [6] a modulus of elasticity of 550 ± 50 GPa, [6] a thermal expansion coefficient of 9.35 × 10 −6 K −1, and a superconducting transition temperature of 5.6 K. [7] [6] TiN oxidizes at 800 °C in a normal atmosphere.

  4. Thermal expansion - Wikipedia

    en.wikipedia.org/wiki/Thermal_expansion

    A number of materials contract on heating within certain temperature ranges; this is usually called negative thermal expansion, rather than "thermal contraction".For example, the coefficient of thermal expansion of water drops to zero as it is cooled to 3.983 °C (39.169 °F) and then becomes negative below this temperature; this means that water has a maximum density at this temperature, and ...

  5. List of thermal conductivities - Wikipedia

    en.wikipedia.org/wiki/List_of_thermal_conductivities

    TPRC Tin is well annealed 99.999+% pure white tin with residual electrical resistivity ρ 0 =0.000120, 0.0001272 & 0.000133 μΩ cm respectively for the single crystal along directions perpendicular and parallel to the c axis and for polycrystalline tin P. The recommended values are thought to be accurate to within 3% near room temperature and ...

  6. Low emissivity - Wikipedia

    en.wikipedia.org/wiki/Low_emissivity

    As it is an opaque material, the remaining 10 percent must be reflected. Conversely, a low-e material such as aluminum foil has a thermal emissivity/absorptance value of 0.03 and as an opaque material, the thermal reflectance value must be 1.0 - 0.03 =0.97, meaning it reflects 97 percent of radiant thermal energy. Low-emissivity building ...

  7. FR-4 - Wikipedia

    en.wikipedia.org/wiki/FR-4

    Coefficient of thermal expansion – x-axis: 1.4 ... (PCBs). A thin layer of copper foil is typically laminated to one or both sides of an FR-4 glass epoxy panel ...

  8. Glass-to-metal seal - Wikipedia

    en.wikipedia.org/wiki/Glass-to-metal_seal

    The thermal expansion of the glass and metal must be closely matched so that the seal remains solid as the assembly cools. Thinking for example about a metal wire in a glass bulb sealing, the metal glass contact can break if the coefficients of thermal expansion (CTE) are not well aligned.

  9. Elastic properties of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Elastic_properties_of_the...

    Elastic properties describe the reversible deformation (elastic response) of a material to an applied stress.They are a subset of the material properties that provide a quantitative description of the characteristics of a material, like its strength.