CRYOSTAT FOR MECHANICAL TESTING OF MATERIALS AT 4.2 K.

Author(s) : VALSAKUMAR M. C., KANNAN N., RADHAKRISHNAN T. S.

Type of article: Article

Summary

THE SAMPLE IS HELD BETWEEN TWO GRIP ASSEMBLIES, THE TOP ONE BEING CONNECTED TO THE LOAD CELL BY A LONG PULL-ROD. THE BOTTOM GRIP IS CONNECTED TO A TUBE WHICH IN TURN IS ATTACHED TO THE MOVING CROSS-HEAD. THE EFFECT OF MAGNETIC FIELD ON YIELD CHARACTERISTICS ESPECIALLY DUE TO THE VISCOUS DRAG OF DISLOCATIONS BY ELECTRON CLOUD, CAN BE STUDIED BY A 10 KILOG SUPERCONDUCTING MAGNET AROUND THE SAMPLE. RESULTS OF TESTS DONE ON ANNEALED COPPER ARE IN AGREEMENT WITH THE LITERATURE. TEMPERATURE STABILITY AT LIQUID NITROGEN TEMPERATURE MAKES IT POSSIBLE TO DO STRESS RELAXATION EXPERIMENTS FOR A DURATION OF 15 MINUTES.

Details

  • Original title: CRYOSTAT FOR MECHANICAL TESTING OF MATERIALS AT 4.2 K.
  • Record ID : 1984-0451
  • Languages: English
  • Source: Indian J. Cryog. - vol. 7 - n. 4
  • Publication date: 1982
  • Document available for consultation in the library of the IIR headquarters only.

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