It is expected on very general grounds that superflow will break down along a curve on the superfluid side of the Q (heat flux) - T (temperature) plane, and it has been shown that the heat capacity at constant Q, CQ, should diverge along that same curve, which we refer to as Tc(Q). The fundamental purpose of the CQ experiment is to measure CQ as close as possible to TdQ). Earthbound measurements to determine Tc(Q) have given results that disagree with theory. Our own laboratory measurements of CQ yield a much larger enhancement of the heat capacity than predicted by theory but, for a variety of gravity-related reasons, measurements could not be made close to TC(Q). The CQ experiment will make use of the microgravity environment to resolve both of these discrepancies between theory and experiment. It will be conducted as a guest experiment using the hardware that has been developed for the Critical Dynamics in Microgravity Experiment (DX), described in a separate paper in this session.
|State||Published - 2001|
|Event||2001 Conference and Exhibit on International Space Station Utilization - Cape Canaveral, FL, United States|
Duration: Oct 15 2001 → Oct 18 2001
|Conference||2001 Conference and Exhibit on International Space Station Utilization|
|City||Cape Canaveral, FL|
|Period||10/15/01 → 10/18/01|