Amorphous, properties

Intense research has in recent years been devoted to noncrystalline materials. It was discovered also that the majority of semiconducting boron-rich borides display several properties that resemble those of the noncrystalline solids. Among the amorphous properties are the temperature and field dependencies of electrical conductivity at low temperature, the temperature dependence of thermal conductivity at high temperatures, and the temperature dependence of the magnetic susceptibility. In addition, the boron-rich semiconductors display crystalline properties, for example, the temperature dependence of the thermal condnctivity at low temperatures, the lattice absorption spectra and the possibility to change... 

Poor safety-related decision making on the part of management, for example, is commonly related to inadequate feedback and inaccurate process models. As such, risk is potentially knowable and not some amorphous property denoted by probability estimates. This new definition of risk can be used to create new risk assessment procedures. 

An alternating copolymer of phenylene vinylene and biarylene vinylene has been described, which has high solubility in an organic solvent and exhibits partial coplanarity to thus realize amorphous properties and superior tt-stacking properties when formed into a film. 

For polymers 57-59, depending on the number of phe-nylene units in the rigid segment, the connection point of the terphenyl unit onto the main chain, and the length of the aliphatic spacer, the polymers showed either liquid crystalline or amorphous properties. 

We may assume that the crystalline propertieB c, and c, remain constant with increasing temperature. At the glass transition temperature, the amorphous properties c, and c, change with inaeasing temperature. The increase of c, results in the increase of both e and d. but the increase of c, results in the increase of r and the deaease of d. Wrious examples of piezoelectric relaxation will be described later. 

Cross-links at 238X (air) Amorphous Properties of cast film ... 

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