LM of superconducting ceramic material
Numéro d’image : 11519290
| Polarised light micrograph of the high temperature superconducting ceramic yttrium-barium-copper- oxide (Y-Ba2-Cu3-O-x). Discovered in 1986,the new superconducting ceramic materials are expected to lead to a technological revolution & are being intensively researched worldwide. Superconducting behaviour depends on oxygen content (x in the formula); this sample has a value of x=6.9 & has a superconducting transition temperature of around 93 degrees Kelvin. The gold areas are pores (holes) in the material. The sample was made by the reaction of yttrium oxide,barium carbonate,& copper (II) oxide at 950 degrees C in oxygen. Magnification: x200 at 35mm size | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / SHEFFIELD UNIVERSITY, DRS P. WARD & T. BUTTON |
| Taille de l’image : | 4749 px × 3719 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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