An electrical substrate material having a high dielectric constant (K 'greater than or equal to 4) and a low thermal coefficient of dielectric constant (TCK' less than or equal to 150 ppm / degreeC) is composed of a fluoropolymer filled with a particulate ceramic material which exhibits low ...
With strong dependences of dielectric constant on external applied electric fields, relaxor barium zirconium titanate (BaZrxTi1-xO3or BZT) and barium stann... QIWEI ZHANG,JIWEI ZHAI,LING BING KONG - 《Journal of Advanced Dielectrics》 被引量: 14发表: 2012年 The Electrochemical Hydrogen Storage...
The thermal decomposition temperature, dielectric constant, and dielectric loss increase with the addition of BN. For a given BN loading, the surface modification of BN by KH550 exhibits a positive effect on the thermal conductivity and mechanical properties of the BN/EP composites. Copyright © ...
wherekBis theBoltzmann's constant, andNis the total number of molecules. It gives a thermalexpansion coefficient ofan ideal gas as (3)αV=1V(NkBP)=1T. In contrast to this universal behavior of ideal gases,αVof different solids may even vary qualitatively. However, it is remarkable that th...
Thermodynamic and Kinetic Effects of Oxygen Removal on the Thermal Conductivity of Aluminum Nitride High thermal conductivity, low dielectric constant, high electrical resistivity, low density, and a thermal expansion coefficient that matches well with th... AV Virkar,TB Jackson,RA Cutler - 《Journal...
the poor thermal conduction of these dielectric materials. Notably, traditional high dielectric composites would lose their electromechanical stability and displayed a large variation in dielectric constant as well as dielectric loss at a broad temperature range, hindering their reliability and efficiency14....
The obtained mBN/PI composite with 30 wt% mBN presents relatively highly thermally conductive coefficient (λ), excellent dielectric constant (ε) & dielectric loss tangent (tan δ), and extremely outstanding thermal stability, λ of 0.696 W/m K, ε of 3.77, tan δ of 0.007, THeat-...
The results show that nanolubricant with 0.01 wt% MoS2 concentration showed the coefficient of friction, average wear scar diameter decreased by 19.24% and 19.52%, respectively, compared to the base oil. Furthermore, the nanolubricant with 0.01 wt% concentration of MoS2 nanoparticle showed an ...
ΠAB is the Peltier coefficient from A to B in the junction AB. Equation (4.29) is a vector equation and changes its polarity with the current flow direction. In 1854, William Thomson (later Lord Kelvin) described a third thermoelectric effect, Thomson effect, the thermoelectric effect that ...
thecure shrinkageis determined as a function of the degree-of-cure. We can also find thecoefficient of thermal expansionand the resin modulus as a function of the glass transition temperature. The process concludes by developing a material constitutive model that can be implemented in anyfinite ele...