advanced structural ceramicsceramic machiningcomponent reliabilitymachining-induced damagesilicon nitride
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Abstract (AI)
Advanced structural ceramics, such as silicon nitride, are attractive for many advanced applications due to their high strength at elevated temperatures, resistance to chemical degradation, wear resistance, and low density. Despite these advantages, there are considerable impediments to the introduction of advanced ceramics. With current technology, fabrication costs are high, compared to other materials, and component reliability is uncertain. The cost of machining can be as high as 90 percent of the total cost of some high precision components; and damage produced during machining can be detrimental to the performance and can produce premature failure.
Key Findings
1
Advanced structural ceramics such as silicon nitride offer high-temperature strength, chemical and wear resistance, and low density.
2
High fabrication costs and uncertain component reliability remain major barriers to the broader adoption of advanced ceramics.
3
Machining can account for up to 90 percent of the total cost of some high-precision ceramic components.
4
Machining-induced damage can impair component performance and cause premature failure.
Research Object
Advanced structural ceramics, particularly silicon nitride components
Research Subject
The high cost of machining and machining-induced damage affecting the reliability, performance, and failure of high-precision ceramic components
Publication Details
Publication Date
1992-01-01
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