A home made semi-automatic feeding plasma arc reactor was used for the mass production fullerenes. Large, high quality single crystals of C60 up to 3mm in length have been grown by both the open-end and sealed vapor transport techniques. Millimeter-sized superconducting single crystals of K3C60 were successfully produced by a sophisticated vacuum doping method. Magnetic and superconducting properties were obtained. Information on the field and temperature dependences of the critical ...
The immersed focus shear-wave testing is widely applied to the longitudinal defects testing of thin-wall tubing with small and medium diameter in the world. This paper point out that the principle of the method presents some problems in theory as a result of the effect of tubing refraction on the beam. And there are notable problems on the operational rules and the testing results by this method. (Author).
Reports by Author
