Studies On The Titanium Matrix Biofunctionability Medical Composites With Potassium Titanium Oxide Reinforced Surface

In this paper, the base material of biofunctionability medical composites have been fabricated by non-consumable arc-melting technology, adding the no harm lrace elements Al, Sn, Zr and B into the titanium. The stress, texture, harness, density, lattice distortion and the effect of trace element was studied. Then honeycomb K2Ti206 was formed by an in situ reaction in high temperature camera and the forming process and bonding was studied. The results are as follows: 1. Utilizing the self-propagation high-temperature synthesis reaction between titanium and boron, in situ TiB reinforced titanium matrix composites have been produced by non- consumable arc-melting technology; 2. The composites have high strength for significant solution-strengthening, fine-grain- strengthening and in situ 憆iB particle reinforced effects by adding elements Al, Sn, Zr and B into the titanium. 3. The as-cast composites have a certain macro stress for the varied cooling rate in different part of the composites. The macro stress decrease significantly by annealing treatment at 450CC. 4. Lattice distortion in composites appears due to the stress, in situ reinforced particle and the adding of solution elements. 5. The orientation distribution of ciystal (001) plane paralleling to sample surface appears due to directional solidification and oriented growth during the solidification of composites. 6. (100) and (001) texture form after deformation of samples. 7. By the reaction between 1102 and K2C03, K21i206 layer and 0, K dispersion layer generate on the surface of composites. Therefore the biofunctionability medical composites has been made.