An electron microprobe study of inclusions in lead telluride thermoelectric elements
Donald Beers Evans, Lawrence Kobren, Goddard Space Flight Center, United States. National Aeronautics and Space Administration
National Aeronautics and Space Administration, 1969 - Science - 10 pages
Electron microprobe study of inclusions in lead telluride thermoelectric elements.
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alloy atomic number atomic weight average oxidation number Backscatter pattern backscattered electron batches carbon concentration carbon X-ray scan chemical association contacting process containing Type electron and sample electron beam element lot Evans TRW Systems Figure 11 Function of position Goddard Space Flight graphite I I I I i i i i I I included phase inclusion area INCLUSIONS IN LEAD indicates Intensity of manganese Kobren Goddard Space Lawrence Kobren Goddard lead telluride matrix line profile trace magnification 1700X magnification 450X manga manganese and carbon manganese and oxygen manganese concentration Manganese X-ray scan microprobe analysis Mn braze layer nese nickel nonmetallic inclusions oscilloscope oxygen X-rays p-type lead telluride percent Mn braze Photomicrograph position across Sample Sample 1 7B sample current signals scan of Type shows a backscatter signal is sent Space Flight Center specimen spectrometers TEGS-3P material TEGS-3P thermoelectric tellurium thermoelectric material Tin X-ray scan Type I inclusions X-ray signal