An Assessment of the Use of Ceramics in Heat Engines

摘要: Abstract : The starting point for this assessment was the failure of DARPA/ Navy/Garrett Ceramic Turbine Program to meet 50 hour engine demonstration goal. Of particular pertinence is that rotating components appear have been successful, but success and its extent were hidden by static component leading complete failure. basic ceramics in heat engines extensive application feasible extremely important. Feasibility shown various different programs which often not totally successful because ambitious, complex nature these programs. importance demonstrated impact ceramic usage on consumption both fuel strategic metals, as well potential large industrial sectors United States serious economic competition with Europe especially Japan. immediate need from Garrett program determine bladed metal rotors. This has practical payoff since some applications blades may be used only a over 50% benefit using vanes. However, hardware an important contribution make, solutions problems, much appears due contact stresses between components, must sought.