Provided here is a comprehensive treatise on all aspects of
dielectric properties of wood and wood products. The topics
covered include: Interaction between electromagnetic field
and wood. - Wood composition and dielectric properties of
its components. - Measurement of dielectric parameters of
wood. - Dielectric properties of oven-dry wood. - Dielectric
properties of moist wood. - Effect of different kinds of
treatment on dielectric properties of wood. - Dielectric
properties of bark. - Dielectric properties of wood-based
materials. - Recommendations for determination of dielectric
parameters of wood based materials and for their use in
calculations.
Several appendices comprise reference data onthe dielectric
characteristics of wood and wood-based materials in the wide
range of frequencies, temperatures, and moisture content.
Inhaltsverzeichnis
1 Interaction between the Electromagnetic Field and Wood. Main Features of Dielectric Properties of Wood. - 1. 1 Polarization of Wood. - 1. 2 Dielectric Parameters of Wood. - 1. 3 Some Principal Formulas Reflecting Interactions Between an Electromagnetic Field and a Material. - 2 Wood Composition and Dielectric Properties of Its Components. . - 2. 1 Physical Model of Wood as a Multicomponent Dielectric. - 2. 2 Dielectric Parameters of the Cell Wall Substance and Its Elements. - 2. 3 Dielectric Characteristics of Air, Free and Bound Water, and Ice. - 3 Measurement of the Dielectric Properties of Wood. - 3. 1 Measurement of the Dielectric Constant and Loss Tangent at Low Frequencies. - 3. 2 Measurements of the Dielectric Constant and Loss Tangent at High Frequencies. - 3. 3 Measurement of the Dielectric Constant and Loss Tangent at Super High Frequencies. - 3. 4 Preparation of Samples. - 4 Dielectric Properties of Oven-Dry Wood. - 4. 1 Influence of Anisotropy, Density, and Frequency on the Dielectric Constant, Loss Tangent, and Loss Factor. - 4. 2 Influence of Temperature on Dielectric Properties. - 5 Dielectric Properties of Moist Wood. - 5. 1 The Dielectric Constant of Moist Wood. - 5. 2 The Dielectric Loss Tangent of Moist Wood. - 5. 3 The Dielectric Loss Factor of Moist Wood. - 5. 4 Mechanism of the Influence of Moisture Content on the Dielectric Properties of Wood. - 6 Effect of Different Kinds of Treatment on the Dielectric Properties of Wood. - 6. 1 Dielectric Properties of Compressed Wood. - 6. 2 Dielectric Characteristics of Modified Wood. - 6. 3 Influence of Gamma-Radiation on the Dielectric Properties of Wood. - 7 Dielectric Properties of Bark. - 8 Dielectric Properties of Wood-Based Materials. - 8. 1 Cellulose, Paper and Board. - 8. 2 Fiberboards. - 8. 3 Particleboards. - 8. 4 Materials Containing Wood, Cellulose, Paper (as a Filler), and Cellulose Derivatives. - 9 Recommendations for the Determination of the Dielectric Parameters of Wood and Wood-Based Materials and for Their Use in Calculations. - 9. 1 Dielectric Parameters and Density of Oven-Dry Wood. - 9. 2 Averaging the Dielectric Parameters Values. - 9. 3 Choice of Frequency on Microwave Treatment of Wood. - Appendices. - References.
