Cu matrix composites with various contents of Ti2AlN were fabricated by powder metallurgy using spark plasma sintering (SPS) method. Ti2AlN ceramic particles were pre-treated by electroless copper plating, the result showed that Ti2AlN reinforcement and Cu matrix were strongly bonded. The effects of Ti2AlN content on microstructure, electrical resistivity and mechanical properties were systematically investigated. With the addition of low fraction of Ti2AlN, the hardness and tensile strength of matrix were improved without losing the fracture toughness too much. Tensile strength of Ti2AlN/Cu composites were about 380 MPa with the content of 7 wt. % reinforcing phase, and the conductivity of the composites remained about 61.5 % IACS. Moreover, the wear tests illustrated that the loads were effectively born by the Ti2AlN reinforcement, the main tribological mechanism changed from adhesive wear to abrasive wear compared with Cu, thus the friction and wear resistance was also obviously improved.

In order to deal with the field metrology, this paper proposed an information management system which contains daily work management section, human resource section, data management section, auto-reminding section and portable device. It combines the human resource management, equipment management, data processing and filed detection and embodies them in one system located in office and the other one in field. As an information system, it ensures the security and reliability of detection data.

By analyzing the current problems in equipment automatic test system, we describe the concept, the basic working principle and advantages of service-oriented architecture (SOA), then introduce the web service architecture and the standards of establishing service-oriented architecture. The architecture model of automatic test system on SOA-based equipment was designed, and was used to realize the unified description of equipment automatic test (including fault diagnosis) information. This effectively improves the equipment's capability in performance detection and maintenance support.

The mechanical model of a new spring locking mechanism was established. The optimum spring parameters of the locking mechanism which meet the design requirements were provided by optimization. Using the finite element method, numerical simulation of working process of the locking mechanism was carried out. The rationality of optimization result was verified by simulation results of numerical simulation.