Advances in Microwave and Radio Frequency Processing: Report from the 8th International Conference on Microwave and High-Frequency Heating Held in Bay

ISBN-13: 9783540432524 / Angielski / Twarda / 2006 / 792 str.

Monika Willert-Porada; M. Willert-Porada

Opis

Prometheus brought fire to mankind Arthur R. von Hippel Dielectrics and Waves, 1954 Our contribution? There are only few areas of research and development of a comparable scientific and technological extension as microwave and high frequency processing. Pr- essing means not only application of radiation of 300 MHz to 300 GHz f- quency to synthesis, heating or ionisation of matter but also generation, transm- sion and detection of microwave and radio frequency radiation. Microwave and high frequency sources positioned in the orbit are the foun- tion of modern satellite telecommunication systems, gyrotron tubes being pr- ently developed in different countries all over the world will most probably be the major devices to open up a new era of energy supply to mankind be means of - sion plasma. Although initiated by military purposes during the Second World War (RADAR, Radio Detection and Ranging), microwave and high frequency utilisation has spread over almost every important aspect of normal day life since than, from individual mobile phones and kitchen microwave ovens to industrial food processing, production of composites as sustainable building materials, green chemistry, medical applications and finally infrastructure installations like GPS and Galileo, to name only few examples. These different areas of microwave and high frequency radiation application can not be unified within one group of scientists and technologists. There are s- eral distinguished communities active e.g., in the area of telecommunication s- tems, strong microwaves for fusion plasma or plasma based materials processing."

Spis treści

Hardware.- Understanding Microwave Heating Systems: A Perspective on State-of-the-Art.- Millimeter-Wave-Sources Development: Present and Future.- 3.5 kW 24 GHz Compact Gyrotron System for Microwave Processing of Materials.- Design Guidelines for Applicators Used in the Microwave Heating of High Losses Materials.- Design Parameters of Multiple Reactive Chokes for open Ports in Microwave Heating Systems.- Microwave High-Power Four Post Auto-Matching System.- Design of an Applicator for Processing of Nanoscale Zeolite/Polymer Composites with Superposed Static Magnetic Field.- Measurement Techniques and Regulations.- Measurement Techniques for Microwave and RF Processing.- Dielectric Characterisation of High Loss and Low Loss Materials at 2450 MHz.- European Regulations, Safety Issues in RF and Microwave Power.- Future Prosperity of Industrial, Scientific and Medical (ISM) Applications of Microwaves.- Electric Field Measurements for Commercially-Available Mobile Phones.- Use of the Dielectric Properties to Detect Protein Denaturation.- Sandalwood Microwave Characterisation and oil Extraction.- Dielectric Spectroscopy and Principal Component Analysis as a Method for Oil Fraction Determination in oil-in Water-Emulsions with Varying Salt Content.- Microwave Non-Destructive Evaluation of Moisture Content in Liquid Composites in a Cylindrical Cavity at a Single Frequency.- Millimeter Wave Spectroscopy of Alumina-Zirconia System.- A Modified Cavity Perturbation Technique for Measurement of the Dielectric Constant of High Permittivity Materials.- Modelling.- Finite Elements in the Simulation of Dielectric Heating Systems.- Examination of Contemporary Electromagnetic Software Capable of Modeling Problems of Microwave Heating.- A Hybrid Approach for Resolving the Electromagnetic Fields Inside a Waveguide Loaded with a Lossy Medium.- A Novel FDTD System for Microwave Heating and Thawing Analysis with Automatic Time-Variation of Enthalpy-Dependent Media Parameters.- Simulation of Microwave Sintering with Advanced Sintering Models.- Finite Element Modelling of Thin Metallic Films for Microwave Heating.- Analysis of Coupled Electromagnetic and Thermal Modeling of Pressure-Aided Microwave Curing Processes.- Selective Heating and Moisture Levelling in Microwaveassisted Drying of Laminar Materials: an Explicit Model.- Microwave Heating of Ready Meals – FDTD Simulation Tools for Improving the Heating Uniformity.- Food Processing and Environmental Engineering Applications.- Novel and Traditional Microwave Applications in the Food Industry.- Microwave Drying: Process Engineering Aspects.- Quality of Microwave Heated Multicomponent Prepared Foods.- Sensory Evaluation of Dried Bananas Obtained from Air Dehydration Assisted by Microwaves.- Microwave Method for Increasing the Permeability of Wood and its Applications.- Selective Heating of Different Grain Parts of Wheat by Microwave Energy.- Microwave in Situ Remediation of Soils Polluted by Volatile Hydrocarbons.- Bio-Dielectric Soil Decontamination.- Waste Treatment under Microwave Irradiation.- Environmental Aspects of Microwave Heating in Polyelectrolyte Synthesis.- Microwave Applications in Chemistry.- Role of Microwave Radiation on Radiopharmaceuticals Preparations.- Fast Synthesis of Biodiesel from Triglycerides in Presence of Microwaves.- Alteration of Esterification Kinetics under Microwave Irradiation.- Multistep Microwave-Assisted Solvent-Free Organic Reactions: Synthesis of 1,6-Disubstituted-4-Oxo-1,4-Dihydro-Pyridine-3-Carboxylic Acid Benzyl Esters.- Recent Applications of Microwave Power for Applied Organic Chemistry.- Liquid Phase Catalytic Hydrodechlorination of Chlorobenzene under Microwave Irradiation.- Conventional and New Solvent Systems for Microwave Chemistry.- Industrial Microwave Applications.- State of the Art of Microwave Applications in the Food Industry in the USA.- Microwave Vacuum Drying in the Food Processing Industry.- Development of an Industrial Solid Phase Polymerization Process Using Fifty-Ohm Radio Frequency Technology.- RF World Tour.- Fundamentals of Microwave Application to Materials Processing.- How the Coupling of Microwave and RF Energy in Materials can Affect Solid State Charge and Mass Transport and Result in Unique Processing Effects.- Enhanced Mass and Charge Transfer in Solids Exposed to Microwave Fields.- Thermal Runaway and Hot Spots under Controlled Microwave Heating.- Densification and Diffusion Processes in the Ba,Sr-Titanate System under Microwave Sintering.- Observation of the Microwave Effect On the Diffusion Behavior in 28 GHz Millimeter-Wave Sintered Alumina.- Dilatometer Measurements in a mm-Wave Oven.- In Situ Determination of Shrinkage under Microwave Conditions.- Multistable Behaviour in Microwave Heating of Ceramics.- Microwave Sintering of Ceramics and Metals.- Microwave Sintering of Silicon Nitride Ceramics.- Novel Materials Processing by Millimeter-Wave Radiation - Present and Future.- Correlation Between Densification and ? - Phase Formation at Microwave Sintering of Si3n4 Ceramics.- Sintering Behaviour and Mechanical Properties of Microwave Sintered Silicon Nitride.- Millimeter-Wave Sintering of High Pure Alumina – Microstructure and Mechanical Properties.- Microwave Sintering of Large-Size Ceramic Workpieces.- Microwave Assisted Sintering of Al2O3.- Absorption of Millimeter Waves in Composite Metal-Ceramic Materials.- Microwave Sintering of PM Steels.- Formation of Functionally Graded Cemented Carbides by Microwave Assisted Sintering in Reactive Atmosheres.- Synthesis and Microwave Processing of Powders.- Microwave Plasma Synthesis of Ceramic Powders.- Microwave and Conventional Hydrothermal Synthesis of Zirconia Doped Powders.- Microwave Decomposition of Metal Alkoxides to Nanoporous Metal Oxides – a Mechanistic Study.- Characterization of SIC Produced by Microwaves.- Microwave Assisted Synthesis of Catalyst Materials for Pem Fuel Cells.- Excitation of Sodium in Powderlike Silicates by Microwave Heating.- New Applications and Processes Related to Microwave and RF Heating.- RF and Microwave Rapid Magnetic Induction Heating of Silicon Wafers.- Industrial Higher Frequency Microwave Processing of Composite Materials.- Drilling Into Hard Non-Conductive Materials by Localized Microwave Radiation.- Design of Avionic Microwave De-/Anti-Icing Systems.- Application of Microwave to Glaze and Ceramic Industry.- Microwave Assisted Binder Burnout.- CVD-Processes in Microwave Heated Fluidized Bed Reactors.- Processing of Carbon-Fiber Reinforced Composite (CFRP) Materials with Innovative Millimeter-Wave Technology.- Basic Research and Industrial Production Using the Spark Plasma System (SPS).- Combined Processes: Laser Assisted Microwave Processing and Sintercoating.

Blurb

Advances in Microwave and Radio Frequency Processing presents innovative reviews as well as technical papers based on contributions presented at the 8th International Conference on Microwave and High Frequency Heating, September 3-7, 2001 at the University of Bayreuth, Germany.

Recent applications of microwave and high-frequency radiation in the field of materials processing, chemical synthesis, food processing and in the biomedical area are presented. The book also covers fundamentals of matter radiation interaction, modeling of processes, hardware development, measurement techniques as well as current regulations for industrial applications of microwave and radio frequency heating. It is a valuable tool not only for specialists in this area but also for researchers from universities and industries, who are interested in entering this interdisciplinary field of research and development.