Snap-shots of YBCO Preparation and Characterization





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1.World Wide Web and library search for background information


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2.  Weight of starting compounds is determined




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3.  Powder components are mixed and carefully ground





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4.  Mixed powder is heated in furnace for 24 hrs.  Powder is reground and the procedue is repeated 2-3 times until materials has a uniform gray color.






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4.  X-ray Diffraction and Raman Scattering (above, Thanks to Prof. J. J. Federici's Lab.) are used to characterize sample.






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5.  The Meissner Effect is a key test of superconductivity and serves as a neat demonstration