adapt to long-term behaviour which the turbines and blades undergo. These researches focuses on the durability of the turbines and degrading reactions at fibre-matrix interfaces as well as internal protective layers. This means that they test the materials under extreme conditions e.g. high temperatures or duration periods, which will enable them to find the stress points which will be more prone to damage than other areas as well as disintegration points.By conducting these research experiments, engineers have been able to produce a fibre reinforced material that is oxidation resistant (rusting) and damage tolerant for a long duration of time and for temperature up to 1400OC, which accommodates the thermal resistance. In order to improve the efficiency of the engine, introduction of metallic and ceramic coatings can be added as well as thermal protection layers. The fibre-reinforced materials are used for thermal protection in the coating of the blades and inside the combustion chamber of the thrust engines. Special ceramic coatings have to be adjusted when considering increasing the resistance to high temperatures the metallic turbine blade.The materials which turbine blades are made from are titanium alloys. Titanium alloys have good corrosion resistance to most conditions substances including nitric acid in all concentrations to boiling point; sea water; and to alkalis in all concentrations to boiling point. Stress corrosion can occur in some alloys if chlorine salts are added onto stressed parts. These parts are therefore subjected to high temperatures. Titanium alloys also provides well understood processing and handling characteristics....
