The Research Between Iron Fibre-oxide And Properties Relationship In Composite Material

With the rapid development of science and technology,to meet the material needs of the development of the ceramic matrix composite performance by increasing the requirements of metal fiber-reinforced ceramic matrix composite development of more and more rapidly.But for the Study of metal fiber materials in the conduct of the current system has not yet conducted the study.In this study,source of rich,low prices Al₂O₃ -based body,by adding iron fiber and various properties of regulator,the atmospheric temperature by the iron sintering Al₂O₃ fiber reinforced ceramic matrix composite.XPS technology to use iron oxide acts as well as fiber extent of characterization,based on the ratio of different body,different content and different additives molding pressure on iron fiber-reinforced ceramic matrix composite Al₂O₃ in the oxidation of iron and fiber will conduct more systematic Research,combined with TG-DTA,XRD and SEM analysis discussed the iron fiber-reinforced ceramic matrix composite Al₂O₃ the microstructure and properties.Preparation for the iron fiber-reinforced ceramic matrix composite Al₂O₃ the application see the basis for the application.The results showed that with the reduction Al₂O₃ content,SiO₂ of the increase, the dense material for the degree of overall declining trend;fiber materials in the iron oxide level increases the mechanical properties decreased.With the reduction in Al₂O₃,iron fiber content increases,the material obtained by the density and porosity volatile,iron fiber content of 15 per cent when the greatest density,porosity minimum content of 25 per cent when the minimum density,Porosity largest fiber content with the increase of iron,iron oxide fiber level decreases,but the iron fiber content of 25 percent,its level of the largest and the mechanical properties of density and porosity corresponding:density,Porosity of small,low levels of iron oxide fiber;density,porosity,and a high degree of iron oxide fibers.Research in the iron fiber-reinforced ceramic matrix composite Al₂O₃ the introduction of the CaO,MgO,SiC,ZrO₂ different additives such as the ceramic structure and performance of and analysis of its mechanism.The results showed that ZrO₂,SiC and the addition of these two additives have led to a dense material increase in the degree of increased density,porosity decreases,and joined CaO,MgO have led to a dense material increase in the degree of reduced density,porosity by Large,and this result,SiC,ZrO₂ both the addition of additives in the degree of reduction of iron fibers,CaO and MgO to iron fiber materials in the extent of increase;SiC,ZrO₂ the accession of these two additives to the material Strength and toughness has been enhanced,adding MgO and CaO led to a material decline in the strength and toughness.