Hey everybody, just wanted to know if anyone had any experience with superconductor fabrication? I know the whole crystal lattice structure thing is more chemistry than physics but I figured I could post in both places. Anyways, I am currenty trying to fabricate a 1-2-3 YBCO superconductor. Some of my samples have come out of the oven green which is due to the powder not being mixed well enough, but even when there is hardly any green I am having problems getting my superconductors to show any signs of superconductivity. I was just wondering if anyone else here has attempted this and run into the same problems. Any assistance would be greatly appreciated.