Development and Verification of Pyroelectric Materials with Low Thermal Diffusivity.
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 Cd>Cu>Zn>Pd. 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)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1978
- Accession Number
- ADA058034
Entities
People
- G. M. Loiacono
- J. P. Dougherty