X-Message-Number: 8167
From: 
Date: Fri, 2 May 1997 14:43:26 -0400 (EDT)
Subject: new insulation?

For years we have been hoping for a rigid open-cell foam, insulation
performance when evacuated as good as evacuated perlite, at affordable price.
The obvious reason
is that we could then make cryostats of almost any shape without worrying
about bearing a one atmosphere load. The rectangular CI cryostats, for
example, would then not need  reinforcing beams.

Possibilities we previously investigated, including one from Japan last year,
did not meet specs. But Andy Zawacki has now tracked down another
possibility, and will be testing it when we receive the promised samples. We
will report results when we have them.

Robert Ettinger
Cryonics Institute

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