| The system of Ti-C-Ni and Ti-B4C-Ni FGMs(Functionally Gradient Materials) and AlMgB14 were successfully prepared by field-activated pressure-assisted synthesis (FAPAS).The microstructure of TiC-Ni, (TiC-TiB2) pNi and AlMgB composite materials were researched by Using SEM, EDS, XRD, TEM. The tribological properties of prepared sample were researched by using Ml-10 abrasive wear tester and MMS-IG high temperature friction and wear machine. Microstructure of the ceramic layer TiC-Ni and (TiC-TiB2) pNi in the FGMs were researched. The results show that TiC-Ni have been completely synthesised and the organization is very dense. TiC particles has size of 2-3μm uniformly distributes in the Ni matrix and combine tightly with the interface of the Ni matrix. No defects, impurities or other intermediate phase were detected. Only TiC, TiB2 and Ni phases were found in the synthesised (TiC-TiB2) pNi composite ceramics. TiC and TiB2 particles have an average size of about 1μm. TiB2 has the shape of hexagonal and TiC has the shape of rectangular or oval-shaped. TiC and TiB2 particles uniformly distributed in the Ni matrix. The maximum micro hardness reached 2450HV. In synthesised Al-Mg-B composites, the main phase is Al0.78Mg0.75B14 and spinel (MgAl2O4), Mg0.5AlB14, A5MgB14 were also found in the composite. The maximum micro hardness reached 2450HV.In the milling process, methanol used as atmosphere can effectively prevent the oxidation of Mg and Al. Not spinel composite but Only AlMgB14 and Al0.5MgB14 are detected in the synthesized AlMgB14.Effect of the content of ceramic particles and load on the wear resistance of TiC ceramic at room temperature was studied and The results show that the wear resistance of ceramic didn't increase with the increase of particles content. When the TiC content is 70%, the ceramic owns the best property of wear resistance. The wear rate also increases with an increase of the load. The wear mechanism is abrasive wear at room temperature.Effect of ceramic particle content, sliding velocity, temperature and load on the wear resistance of (TiC-TiB2) pNi composite ceramic were researched and the influence of friction conditions on the laws of friction and wear were compared. The results show that (TiC-TiB2)p-Ni cermet has good self-lubricating ability in the air. Friction and wear oxidation are the main mechanism. The phase of Ti8C5, TiO, TiO2, Fe2O3, B2O3 were detected. The oxide films of Fe2O3, TiO2 and B2O3 formed during the friction process play an important role in lubrication. Friction coefficient and wear rate decrease when the temperature increases. Wear mechanism changed from the abrasive wear to oxide and adhesion wear. The coefficent of friction have a sudden change when the load increases from 60N to 200N. Wear mechanism changed from the abrasive to fracture and friction oxidation. Effect of silding speed on wear rate and friction coefficient have the same trend with the load. By comparing the wear resistance of ceramic and cemented carbide, it can be concluded that the wear rate of the ceramic is just one sixth of that of cemented carbide.
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