Creep of silicon nitride

“…Si 3 N 4 based ceramics typically show only primary and secondary creep [13]- [15]. Stress rupture occurs in the secondary creep region because of the relatively brittle nature of Si3N4 based ceramics.…”

Section: Resultsmentioning

confidence: 99%

SiAlON Ceramics for the High Temperature Applications: High Temperature Creep Behavior

Uludağ¹,

Turan²

2015

IJMMM

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Abstract-Gas turbine engines have been widely used in electricity power generation in industry and aviation. The performance of gas turbine engines is limited by the temperature and strength capabilities of the materials used in the engine. Silicon nitride based ceramics have been expected to be candidates for gas turbine engine components due to their promising mechanical properties at high temperatures. On this basis, over the last 40 years large number of programs in the world has been working to produce ceramic components for gas turbines with the goals of increasing efficiency and lowering emissions. But there are some difficulties that limit the use of structural ceramics based silicon nitride in gas turbine components. Creep performance is one of those problems and creep performance of a material is one of the major factors for determining its high temperature application. In this study creep behavior of SiAlON ceramics, which are solid solutions of silicon nitride ceramics, were investigated at temperatures from 1100 ˚C to 1400 ˚C under stresses from 50 to 150 MPa in air.

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“…Companies often have their in-house crucible coating system, but ready-to-use crucibles might be purchased as well. A detailed analysis of the chemistry of silicon nitride in general might be found in Meléndez-Martínez and Domínguez-Rodríguez (2004).…”

Section: Crucible Coatingmentioning

confidence: 99%

Silicon Crystallization Technologies

Dold

2015

Semiconductors and Semimetals

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Creep of silicon nitride

Cited by 78 publications

References 220 publications

Competitive precipitation of amorphous and crystalline silicon nitride in ferrite: Interaction between structure, morphology, and stress relaxation

Competitive precipitation of amorphous and crystalline silicon nitride in ferrite: Interaction between structure, morphology, and stress relaxation

SiAlON Ceramics for the High Temperature Applications: High Temperature Creep Behavior

Silicon Crystallization Technologies

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