Neutron-absorbing material and method of making same

Details Neutron-absorbing material and method of making same Neutron-absorbing material and method of making same

1986-07-10

1988-05-17

Lechert, Jr., Stephen J.

Compositions

X-ray or neutron shield

2505171, 2505181, 264 291, 264 295, 264 63, 264 65, 376339, 376419, 501 88, 501 90, 501 91, 501 92, 501 93, C04B 3568, G21F 106, G21C 1106

Patent

active

047449225

ABSTRACT:
A neutron-absorbing material is formed by a process which includes the steps of: mixing an absorptive material having a high thermal neutron capture cross-section (e.g., B.sub.4 C), a neutron-moderating material (e.g., graphite) and a binder (e.g., a phenol formaldehyde resin); shaping such mixture; curing such shaped mixture (e.g., to complete polymerization of the resin and to have only a carbon residue); and siliconizing such shaped and cured mixture. The resulting product has been formed to be denser and stronger, and more oxidation- and abrasion-resistant than prior art compositions.

REFERENCES:
patent: 3356618 (1967-12-01), Rich et al.
patent: 3887807 (1975-06-01), Poignant, Jr. et al.
patent: 4225467 (1980-09-01), McMurtry et al.
patent: 4252691 (1981-02-01), Lipp et al.
patent: 4293598 (1981-10-01), Hortman et al.
patent: 4474728 (1984-10-01), Radford
patent: 4514346 (1985-04-01), Luhleich et al.
patent: 4566989 (1986-01-01), Radford et al.

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