Electron beam (EB) weldability study of Consil 995-a structural material for RE cavity applications of thin film high temperature superconductors

1991 ◽  
Vol 27 (2) ◽  
pp. 1295-1298
Author(s):  
R.J. Sinko ◽  
H.G. Campbell ◽  
P. Arendt ◽  
N. Elliot
Keyword(s):  
Thin Film ◽  
Electron Beam ◽  
High Temperature ◽  
Structural Material ◽  
High Temperature Superconductors

Thin Film Processing of Complex Multilayer Structures of High-Temperature Superconductors

MRS Bulletin ◽  
1992 ◽  
Vol 17 (8) ◽  
pp. 34-38 ◽  
Author(s):  
Ronald H. Ono
Keyword(s):  
Thin Film ◽  
High Temperature ◽  
Integrated Circuits ◽  
Integrated Circuit ◽  
High Temperature Superconductors ◽  
Dissimilar Materials ◽  
Film Structure ◽  
Monolithic Integrated Circuit ◽  
Fully Integrated ◽  
Economy Of Scale

The realization of a revolutionary generation of electronics based on high-temperature superconductors (HTS) crucially depends on the ability to make high-quality thin film microstructures. These will incorporate materials such as YBa2Cu3O7-δ (YBCO), TlBaCaCuO, or BiSrCaCuO in a fashion similar to the circuits and devices made of their low Tc counterparts Nb or NbN. Without exception, the most valuable structures will be composed of multiple layers of superconducting films and dielectrics, in some cases combined with normal metals, low-temperature superconductors, or a variety of semiconductors. Generically, these can be combined in two ways: in a hybrid design where specialized packages and bonding are used to attach dissimilar materials, or in a monolithic thin film structure such as the one seen in Figure 1.The division between hybrid and monolithic multilayers results from the historical development of electronic circuits. Hybrid designs typically require linewidths and alignment accuracy somewhat less demanding than those used in fully integrated circuits. The advantage of hybrid construction is the separation of incompatible processing steps onto different substrates or die. The monolithic integrated circuit, whether microelectronic, millimeter wave, or radio frequency, can be made in large batches with concomitant economy of scale and can be fabricated with fewer parasitic constraints. Superconducting integrated circuits have followed the semiconductor pattern of being developed in a hybrid fashion, then transferred to a fully integrated process.

Determination of current and flux distribution in squares of thin-film high-temperature superconductors

1994 ◽  
Vol 229 (3-4) ◽  
pp. 289-300 ◽  
Author(s):  
P.D. Grant ◽  
M.W. Denhoff ◽  
W. Xing ◽  
P. Brown ◽  
S. Govorkov ◽  
...  
Keyword(s):  
Thin Film ◽  
High Temperature ◽  
Flux Distribution ◽  
High Temperature Superconductors

Structure of Water and Electron Beam Damaged High Temperature Superconductors

1987 ◽  
Vol 99 ◽  
Author(s):  
J. P. Zhang ◽  
D. J. Li ◽  
L. D. Marks
Keyword(s):  
Electron Beam ◽  
High Temperature ◽  
Water Vapour ◽  
Amorphous Phase ◽  
Barium Carbonate ◽  
Ion Beam ◽  
High Temperature Superconductors ◽  
Barium Oxide ◽  
Oxide Surface ◽  
Preferential Formation

ABSTRACTHigh Resolution electron microscope observations of the effect of water vapour and the electron beam on high temperature superconductors indicate that the effects are very similar. Water vapour leads to the decomposition into a barium compound which in the microscope is barium oxide (presumably barium carbonate in air) which takes the form of whiskers on the surface and the green and brown phases. The electron beam first produces a true surface amorphous phase which on prelonged irradiation develops a barium oxide surface coating. Different from the results of ion beam damage, we have not seen any evidence for preferential formation of the amorphous phase at grain boundaries. These results indicate that as the oxygen content of the material is reduced, the barium cations become more mobile and can therefore diffuse out to the surface.

Photoluminescence from Electron-Beam Deposited CeO 2 Thin Film after High Temperature Thermal Annealing

2006 ◽  
Vol 23 (7) ◽  
pp. 1919-1922
Author(s):  
Fang Ying-Cui ◽  
Zhang Zhuang-Jian ◽  
Shen Jie ◽  
Lu Ming
Keyword(s):  
Thin Film ◽  
Electron Beam ◽  
High Temperature ◽  
Thermal Annealing
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