Thermoelectric devices and materials have potential applications in refrigeration and power generation. An X-ray diffraction study was made documenting the phase and the lattice parameter of both some new thermoelectric compounds and some previously known compositions. The materials contained primarily Ir, Rh, Sb, Sn, and Pt. Improvements in the measurement procedures resulted in improved accuracy in lattice parameter measurements and in peak intensity measurements.
This report summarizes the progress made during the second year of AFOSR contract support in growing single crystals and producing ceramic samples of aluminum nitride for use as electronic heat sinks and surface acoustic wave (SAW) devices. An improved aluminum pellet-drop technique for making 70-g quantities of ALN starting material has been developed. By subliming and recondensing this material in sealed tungsten crucibles at temperatures between 2100 C and 2350 ...
Reports by Author
