L.F Li
,
YY Li
,
O. Sbaizeroand S. Meriani(Cryoguic Laboratory Chinese Academy of Sciences
,
Beijing 100080
,
China )(Institute of Metal Research
,
Chinese Academy of Sciences
,
Shenyang 110015
,
China)(Materials Engineering Department
,
University of Triesty
,
Italy)
金属学报(英文版)
The use of zirconia-based ceramic materials as smpport materidls for superconducting magnets and in cryopenic engineeriny generally has been considered. The relationship between compsition and mechanical properties at cryogenic temperature has also been investigated.
关键词:
structural material
,
null
,
null
,
null
(C.Boulmer-Leborgne
,
J.Hermann and B.Dubreuil GREMI
,
Orleans University. CNRS
,
France)I. Ursu
,
M.Dinescu
,
N
,
Chitica and I.N.Mihailescu (Institute of Atomic Physics
,
Bucharest
,
Romania)(International Center for Theoretical Physics.Trieste
,
Italy)
材料科学技术（英文）
We have investigated the role of the ambient gas nature and pressure in the structure and appearance of the laser treated zone. and the influence of the total duration and temporal shape of laser pulse with the laser tight being λ= 10.6μm wavelength incident upon a metallic surface at intermediate taser intensities of 107-108 W / cm2. A plasma is accompanied by the action of the laser pulse, It acts as an active moderator among laser beam and target thus determining the final status of the contact surface
关键词:
M. P. Tosi(International Centre for Theoretical Physics
,
Strada Costiera 11
,
I-34014 Trieste
,
Italy)
材料科学技术（英文）
Solutions of metals in molten salts present a rich phenomenology: localisatlon of electrons in disordered ionic media, activated electron transport increasing with metal concentration towards a nonmetal-metal (NM-M) transition, and liquid-liquid phase separation. A brief review of progress in the study of these systems is given in this article, with main focus on the NM-M transition. After recalling the known NM-M behaviour of the component elements in the case of expanded fluid alkali metals and mercury and of solid halogens under pressure, the article focuses on liquid metal-molten salt solutions and traces the different NM-M behaviours of the alkalis in their halides and of metals added to polyvalent metal halides.
关键词:
