These 38 papers from the April 2000 symposium study granular structure, granular flows, nonlinear waves in granular media, vibrated and rotated granular media, and stress distributions. Topics include jamming in liquids and granular materials, nuclear magnetic resonance studies of granular flows, the blueprint of a concept for a nozzle- free inkjet printer, mixing and segregation processes in a Turbula blender, persistence of granular structure during die compaction of ceramic powders, and humidity-induced cohesion effects in granular media. c. Book News Inc.
Interest in wide-bandgap semiconductors for high-power/high-temperature electronics remains prominent. For such applications, SiC is by far the most mature semiconductor material. GaN and diamond, however, have also become prime candidates. While diamond has several advantages over the other two materials, producing large single crystals, as well as the inability to achieve n-type doping, have limited device fabrication. For GaN, recent advances in crystal growth and processing capabilities, as well as excellent transport properties, have yielded a great deal of device development, yet thermal conduction remains an issue. SiC has excellent thermal conductivity, high-breakdown voltages, and well-developed substrates and processing techniques. This book deals with a wide range of technical activity in the area of wide-bandgap high-power/high-temperature electronic devices and covers topics including the fabrication and performance of GaN-based and SiC-based devices, as well as issues related to growth, characterization, and processing of wide-bandgap materials. Several summaries of the current status of the field are provided.