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A simple constant stress, high precision compression creep machine is described for use at very low stress levels. The primary advantage of this machine is that it can be operated upto a temperature of 2023K under a minimum feasible load of about 1MPa.Some typical creep results are present for MgO single crystals with measured steady state strain rates down to about 10-8S-1. It is shown that the results obtained from this machine coincide with those from an ordinary creep machine at high stress levels. This machine has an additional advantage of studying stress-change behavior during creep.[Received October 11, 1985]

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