Mechanical Properties of Silicon Nitride Using RUS & C-Sphere Methodology

Mark Hadfield; Wei Wang; Andrew Wereszczak

doi:10.4028/www.scientific.net/AST.64.71

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Advanced Evaluation Methods of Residual Stress in Bioceramics Wear Surfaces
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Characterization of Wear Mechanisms of Silicon Carbide Materials
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Effect of Polymorphic Zirconia Phases on the Mechanical and Wear Properties of Cr₃C₂-NiCr Cermets
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Study on the Development of Resource-Saving High Performance Slurry - Polishing/CMP for Glass Substrates in a Radical Polishing Environment, Using Manganese Oxide Slurry as an Alternative for Ceria Slurry
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Characterization and Performance of Glass-Ceramic Sealants for SOECs
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In Situ HRTEM Observations of Spreading Reactive Molten Alloy on Ceramic Substrates
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Ultrarapid Transient-Liquid-Phase Bonding of Advanced Ceramics
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HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 64Mechanical Properties of Silicon Nitride Using RUS...

Mechanical Properties of Silicon Nitride Using RUS & C-Sphere Methodology

Abstract:

Silicon nitride is a type of engineering ceramic which has been used in ball bearing and other rolling contact applications owing to its good fatigue life, high temperature strength and tribological performance. In this paper, the mechanical properties of Hot Isostatically Pressed (HIPed) and Sintered and Reaction Bonded Silion Nitride (SRBSN) have been studied. The elastic modulus and poisson’s ratio of three types of commerical grade HIPed silicon nitride, and ground SRBSN with three surface condidtions were measured using a Resonance Ultrasound Spectroscopy (RUS). The RUS measurement reveals the variation of elastic properties across different types of HIPed silicon nitride specimens. The surface strength of silicon nitride are studied using a C-sphere specimen, and the results show that SRBSN with three different surface finishing conditions show varied surface strength. The RUS and C-sphere techniques can potentially be used to sample the quality and consistency of ball bearing elements.

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Periodical:

Advances in Science and Technology (Volume 64)

Pages:

71-75

DOI:

https://doi.org/10.4028/www.scientific.net/AST.64.71

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Online since:

October 2010

Authors:

Mark Hadfield, Wei Wang, Andrew Wereszczak

Keywords:

C-Sphere, Elastic Property, RUS, Silicon Nitride, Surface Strength

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