Accession Number:

ADA058034

Title:

Development and Verification of Pyroelectric Materials with Low Thermal Diffusivity.

Descriptive Note:

Final technical rept. 15 Apr-15 Dec 77,

Corporate Author:

PHILIPS LABS BRIARCLIFF MANOR N Y

Personal Author(s):

Report Date:

1978-05-01

Pagination or Media Count:

63.0

Abstract:

The growth of TGS, DTGS, TGFB and DTGFB crystals from solutions containing Cd, Zn, Cu and Pd impurities 5 mole level has resulted in improved properties of these pyroelectric materials. Specifically, the optical quality and machinability of Zn and Cd doped crystals improved significantly. The thermal diffusivity and specific heat of the doped crystals were reduced by 10 and 25, respectively. The effectiveness of the dopants can be classified as CdCuZnPd. The evidence is clear that metal dopings do effect the thermal properties of these crystals even at the low concentrations incorporated into the host crystals. Further investigations at higher doping levels of both metallic and organic compounds are warranted. Samples of the doped crystals were supplied. Author

Subject Categories:

  • Crystallography
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE