Effect of Segment Length on Maximum Power of 2-Segmented n-PbTe with Different Carrier Concentrations
Year: 1999
Type: article
Abstract: The n-Pb Te joined compacts of two segments with carrier concentration n e of 1 × 10 25 and 3 × 10 25 /m 3 have been fabricated by hot pressing, and the effective maximum power P max has been evaluated in relation to the length ratio X of the segment(n c =1 × 10 25 /m 3 ) to the joined compact. X was changed to be 44, 50 and 62%. The P max of the joined compact was between the P max curves of the two segments at ΔT hc ≤420 ∼480K, while was larger at ΔT hc ≥420∼480K. ΔT hc is the temperature difference between the hot and the cool side temperatures. The optimum interface temperature of the joined compact was 640K. When ΔT hc =500K and also X=75%, T was 640K. The joined compact with X=75% was expected to generate 10% more power than the homogeneous compacts at ΔT he =500K.
Source: Materials science forum
Institution: National Institute for Materials Science
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W2078332996