Addressing the Manufacturing Issues Associated with the use of Ceramic Materials for Diesel Engine Components.

McSpadden, SB

Oak Ridge National Laboratory

关键词: Mechanical Properties;    Silicon Nitrides;    Performance Testing;    Grinding;    Machining;   

DOI  :  10.2172/814147
RP-ID  :  C/ORNL98-0501
RP-ID  :  AC05-00OR22725
RP-ID  :  814147

美国|英语

来源: UNT Digital Library

【 摘 要 】

This CRADA supports the objective of selecting appropriate ceramic materials for manufacturing several diesel engine components and addressing critical manufacturing issues associated with these components. Materials that were evaluated included several varieties of silicon nitride and stabilized zirconia. The critical manufacturing issues that were addressed included evaluation of the effect of grain size and the effect of the grinding process on mechanical properties, mechanical performance, reliability, and expected service life. The CRADA comprised four tasks: (1) Machining of Zirconia and Silicon Nitride Materials; (2) Mechanical Properties Characterization and Performance Testing; (3) Tribological Studies; and (4) Residual Stress Studies. Using instrumented equipment at the High Temperature Materials Laboratory (HTML) Machining and Inspection Research User Center (MIRUC), zirconia and silicon nitride materials were ground into simulated component geometries. These components were subsequently evaluated for mechanical properties, wear, and residual stress characteristics in tasks two, three, and four.