Investigation on Properties of the Silica Ceramic Cores for the Hollow Blades Prepared by the Conversion of the Silicon Resin

Jian Bo Yu; Zhi Gang Yang; Chuan Jun Li; Kang Deng; Zhong Ming Ren

doi:10.4028/www.scientific.net/KEM.680.267

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 680Investigation on Properties of the Silica Ceramic...

Investigation on Properties of the Silica Ceramic Cores for the Hollow Blades Prepared by the Conversion of the Silicon Resin

Abstract:

The working conditions of the ceramic cores are extremely harsh with the development of the preparation technology and improvement of the use conditions in the hollow blades, which brings forward high request for the preparation and properties of the ceramic cores. In this paper, silica ceramic powders were firstly coated by the silicon resin. The obtained composite powders were used to prepare the ceramic cores by the dry pressing method. And the phase compositions, microstructure and properties of the ceramic cores with the sintering temperatures were investigated. The results showed that the composite powders prepared by the coating showed good formability. The sintering temperature promoted the formation of the cristobalite. With the increase of the sintering temperature, the porosity of ceramic cores gradually decreased, the shrinkage rate and bulk-density increased. The prepared ceramic cores at 1250°C had highest bend strength of 19.25Mpa.

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Periodical:

Key Engineering Materials (Volume 680)

Pages:

267-271

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.680.267

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Online since:

February 2016

Authors:

Jian Bo Yu, Zhi Gang Yang, Chuan Jun Li, Kang Deng, Zhong Ming Ren*

Keywords:

Bend Strength, Ceramic Cores, Coating, Dry Pressing Method, Silicon Resin

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* - Corresponding Author

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