DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click
HERE to register or log in.
Accession Number:
AD0909444
Title:
Pb-SnTe Single Crystals.
Corporate Author:
TEXAS INSTRUMENTS INC DALLAS
Report Date:
1973-01-01
Abstract:
This program was undertaken to produce large, homogeneous crystals of PbSnTe by a closed-tube vapor transport process. High purity starting elements were further purified by zone refining and were compounded to produce Pb sub 1-X Sn sub XTe, nominally 21 SnTe, which was used as the charge in the vapor transport. Conditions were found to produce crystal boules 25 mm in diameter and up to 25 mm long at rates as high as 4 gday. Material of high crystalline perfection was identified by metallographic examination and by large-area Laue x-ray photographs. Electron microprobe analysis indicated that the point-to-point compositional variation would give less than or - 0.5 micrometers spread in cut-off wavelength around an average of 11 micrometers cut-off.
Descriptive Note:
Final technical rept. 20 Apr-20 Dec 72,
Pages:
0044
Contract Number:
DAAK02-72-C-0389
File Size:
0.00MB
