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After short term tensile test at 823–923 K, microstructure, fractography and fracture mechanism of the T92/Super304H dissimilar steel weld joints were studied. In the high temperature tensile process, the fracture location of all joints is in the T92 base metal; however, the fracture mechanism of these joints changes from a normal mode to a shear mode with the increase of the temperature. Moreover, an equation of the creep rupture strength related to the short term tensile strength of the joints was firstly derived in terms of the Goldenberg model. And then the creep rupture strength of the joints was obtained, = 42·7 MPa.

A convenient and efficient method for the hydrogenative cleavage of azo compounds to corresponding amine (s) using chitosan-supported formate as hydrogen donor in conjunction with low-cost magnesium powder is reported. This method was found to be highly facile with selectivity over several other functional groups, such as halogen, alkene, nitrile, carbonyl, ether, amide, methoxy, and hydroxyl groups. Furthermore, this mild, exceedingly efficient, and highly chemoselective method simplifies the handling and separation procedures.

C60 single-crystal is obtained directly from the mixture solution of C60 and C70 by a simple method. The structure, morphology and property of the singl-crystal C60 are investigated.

In this communication, an attempt to synthesize C60-contained Pearl Necklace-Polymer was made. The reaction of C60 with diphenyl with acid catalyst (AlCla) was studied by IR, NMR, MS, UV-Vis, DSC-TG, VPO and TEM. Experimental results show that polysubstituted fulleroid was formed. Its structure and properties remains unknown.