Published February 2010 | Version v1
Journal article

Development of a cryogenic load frame for a neutron diffractometer

  • 1. Quantum Beam Center, Neutron Scattering Group, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 (Japan)
  • 2. Quantum Beam Science Directorate, Neutron Residual Stress Analysis Group, Japan Atomic Energy Agency, Tokai-mura, Naka-gun, Ibaraki 319-1195 (Japan)
  • 3. Taiyo Nippon Sanso Corporation, 10 Okubo, Tsukuba, Ibaraki 306-2611 (Japan)
  • 4. Department of Mechanical Engineering, Daido University, 10-3 Takiharu-cho, Minami-ku, Nagoya, Aichi 457-8530 (Japan)
  • 5. Research Institute for Applied Sciences, 49 Sakyo-ku, Tanaka Ohi-cho, Kyoto 606-8202 (Japan)

Description

Strain measurements under loading at cryogenic temperatures are much requested for investigation of the stress/strain effect on the critical current for composite superconductors. In order to provide in-situ measurements of the lattice strain, a cryogenic load frame with a GM refrigerator has been developed, which is suitable for the neutron diffraction facility RESA equipped at JRR-3 in JAEA. The lowest temperature of 4.8 K was achieved, while the capacity of the load frame was 10 kN. Using the present cryogenic load frame, plane spacing measurement was performed under loading for two specified samples of 316 stainless steel and engineering Y–Ba–Cu–O (YBCO) coated conductor. The relation between applied stress/strain and lattice strain has been made clear in a wide range of temperatures

Availability note (English)

Available from http://dx.doi.org/10.1088/0957-0233/21/2/025904

Additional details

Identifiers

DOI
10.1088/0957-0233/21/2/025904;
PII
S0957-0233(10)30794-6;

Publishing Information

Journal Title
Measurement Science and Technology
Journal Volume
21
Journal Issue
2
Journal Page Range
[4 p.]
ISSN
0957-0233
CODEN
MSTCEP