| 释义 |
superconˈductor Physics.
[f. super- 6 c, tr. Du. suprageleider (H. K. Onnes 1913, in Versl. van de gewone Vergad. d. Wis- en Natuurk. Afdeeling, K. Akad. v. Wetensch. te Amsterdam XXI. 1390).]
A substance that becomes superconducting at sufficiently low temperatures; also, such a substance in the superconducting state.
1913H. K. Onness in Proc. Sect. Sci. K. Akad. Wetensch. Amsterdam XV. 1429 A pushing forward of the electrons in the galvanic current through a super-conductor without performance of work. 1931Ann. Reg. 1930 61 Meissner discovered that copper sulphide is a superconductor. Ibid., Niobium carbide becomes a superconductor at 10° A. 1955H. B. G. Casimir in W. Pauli Niels Bohr 119 At temperatures above the transition point..superconductors behave in all respects like these normal metals. 1959Sci. News LI. 21 The real difficulty in the use of superconductors in magnetic devices is the fact that superconductivity is destroyed by fields of only a few hundred oersted. 1969Rose-Innes & Rhoderick Introd. Superconductivity i. 5 About half the metallic elements are known to be superconductors and..a large-number of alloys are superconductors. 1983New Scientist 24 Mar. 802/1 Like most of the organic superconductors already known, the new material loses its resistance only under high pressure. |