NIST-TTU Torsional Dilatometer
This rheometer was built by Duran and Mckenna with the aim of measuring the volume change during stress relaxation. It has a strain gauge transducer with 1000 N Normal force and 39 N-m torque capacity. The mercury immersion dilatometer was replaced by a Laser scan micrometer in order to avoid the use of mercury immersion dilatometry for safety and health reasons.
Specs of laser scan micrometer LSM 501-H
- Measuring range of 0.05 to 10 mm
- Resolution of the device is 10 nm
Experimental Application
Related Publications
- A. Flory, G. B. McKenna, "Microscopic Origins of the Normal Force responses of Glassy Polymers in the Subyield Range of Deformation", Macromolecules, 38(5), 1760 (2005).
Polymers and Condensed Matter Physics Group
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Address
P.O. Box 43121, Lubbock, TX 79409−3121 -
Phone
806.742.3553 -
Email
che@ttu.edu