scholarly journals Effect of cold isostatic pressing on superconductivity of Y-Ba-Cu-O system.

1989 ◽  
Vol 36 (5) ◽  
pp. 611-614
Author(s):  
Yoshinari Kaieda ◽  
Hitoshi Wada ◽  
Kikuo Itoh ◽  
Tsuneo Kuroda ◽  
Osamu Odawara
2015 ◽  
Vol 57 (6) ◽  
pp. 495-498 ◽  
Author(s):  
Lidija Ćurković ◽  
Marijana Majić Renjo ◽  
Damir Ciglar

1995 ◽  
Vol 10 (10) ◽  
pp. 2433-2443 ◽  
Author(s):  
Wai Lo ◽  
R. Stevens ◽  
R. Doyle ◽  
A.M. Campbell ◽  
W.Y. Liang

High textured (Bi,Pb)2Sr2Ca2Cu3Ox ceramics have been fabricated by aligning deflocculated flakes of (Bi,Pb)2Sr2Ca2Cu3Ox suspended in an organic medium by means of a high de magnetic field (6 T) at room temperature followed by cold isostatic pressing. The proportion of the (Bi,Pb)2Sr2Ca2Cu3Ox phase in the precursor powder was carefully controlled, and the characteristics of the powder, such as size distribution and morphology, were determined. A high degree of grain alignment was found in the specimens after the magnetic alignment, although the bulk density of the materials was low. Cold isostatic pressing substantially increased the density of the magnetically prealigned specimens which also resulted in a slight decrease in the degree of grain alignment. This minor realignment was found to be due to the various kinds of processing defects that appeared in the specimens during compaction due to the grinding and cracking of the grains and their interlocking. The microstructural and superconducting properties of the sintered ceramic have been studied using texture goniometry, high resolution scanning electron microscopy, transmission electron microscopy, ac magnetic susceptometry, and critical current measurements.


2015 ◽  
Vol 50 ◽  
pp. 25-31 ◽  
Author(s):  
Lin Ge ◽  
Jiang Li ◽  
Zhiwei Zhou ◽  
Binglong Liu ◽  
Tengfei Xie ◽  
...  

AIP Advances ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 047806 ◽  
Author(s):  
Trong Trung Le ◽  
Zarel Valdez-Nava ◽  
Thierry Lebey ◽  
Frédéric Mazaleyrat

2017 ◽  
Vol 888 ◽  
pp. 126-130 ◽  
Author(s):  
Nurul Khairunnisa Su ◽  
Muhammad Fadhlullah Al Amin Abdul Razak ◽  
Johar Banjuraizah ◽  
Muhammad Asri Idris ◽  
Zainal Arifin Ahmad

The microstructure and mechanical properties of zirconia toughened alumina (ZTA) ceramic added with niobia (Nb2O5) through cold isostatic pressing (CIP) method was investigated. The amount of Nb2O5 is varied from 0 wt.% to 7 wt.%. The phase composition of the sintered bodies was analyzed with an x-ray diffractometer, while their microstructure was observed with a scanning electron microscope. It is found that up to 3 wt.% of Nb2O5 addition, the secondary phase of Nb2Zr6O17 presence as square shape particles confirm by SEM and EDX. The addition of 3 wt.% showed the highest Vickers hardness value with 1600HV. It was observed that, further addition of Nb2O5 (> 3 wt.% ) deteriorates the Vickers hardness of ZTA. While the fracture toughness value increased at 3 wt.% until 5 wt.% of Nb2O5 addition (6.71 MPa · √m and 6.80 MPa · √m respectively). It was also found that the value for bulk density increased and porosity decreased with the increasing of Nb2O5 addition.


1986 ◽  
Vol 94 (1094) ◽  
pp. 1092-1098 ◽  
Author(s):  
Osami ABE ◽  
Shoichi IWAI ◽  
Shuzo KANZAKI ◽  
Masayoshi OHASHI ◽  
Hideyo TABATA

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