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Assisted Synthesis of Nanolayer Carbides and Nitrides

3 Transition Metal Carbides and Nitrides Intriguing Catalysts.143 [Pg.141]

2 Carbides Prepared from Argon Fluidization of Metal [Pg.141]

This section briefly describes microwave-material interactions and provides a general understanding of the phenomena that occur during MAFBS. A number of references offer an in-depth explanation of microwave processing. - [Pg.142]

Several quantities describe the extent of dielectric polarization that will occur in a material. The dielectric constant, is the polarizability of a molecule. Polar molecules like water that have localized charges have greater e than nonpolar molecules like benzene. The second quantity, f , is the dielectric loss. It reflects how efficiently energy from an electromagnetic field is converted into heat within the material. As f increases, the material will heat more effectively in a microwave. [Pg.142]

The temperature rise in a solid or liquid exposed to microwave heating is dependent on the dielectric loss. Equation 7.1 relates f to temperature rise (AT), processing time (At), and properties of the material and electric field  [Pg.143]


Microwave-Assisted Synthesis of Nanolayer Carbides and Nitrides... [Pg.141]




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