The railroad industry is investigating the use of ceramics as a means of increasing the ability of the medium speed diesel engine to consume a wider range of fuels. On behalf of the railroad industry, the Association of American Railroads (AAR) has included the study of ceramics within its co-operative medium speed diesel engine research program. Tests have been conducted, as part of the AAR program to evaluate the ability of ceramic coatings to: 1) protect engine components against corrosion and erosion; 2) determine the effectiveness of using ceramic coatings as thermal barriers/ and 3) increase engine efficiency and reduce maintenance costs. This paper will report on the ceramic coating research undertaken by Southwest Research Institute (SwRI) and by the National Research Council of Canada (NRC) as part of the comprehensive AAR research program.

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