Radioactive heat source and method of making same

Details Radioactive heat source and method of making same Radioactive heat source and method of making same

1975-07-17

1977-01-04

Borchelt, Archie R.

Radiant energy

Radiant energy generation and sources

250496, G21G 400

Patent

active

040015882

ABSTRACT:
A radioactive source of heat which is resistant to cremation conditions is made by encapsulating a radioisotope within a containment vessel and forming a refractory metal silicide diffusion coating exterior thereof. A secondary molybdenum vessel may be provided with a molybdenum silicide coating and then heated in air to oxidize its outer layer. A layer is applied exterior of the diffusion-coating which provides a continuous ceramic oxide layer upon subjection to cremation. This outer layer may be discrete silica carried in a hardenable binder of an organic polymer, and a minor amount of antimony is preferably also included.

REFERENCES:
patent: 3533913 (1970-10-01), Botts et al.
patent: 3697329 (1972-10-01), Bunker et al.
patent: 3767930 (1973-10-01), Sayell

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