Effect of MgO Coating on Whisker Preform Strength of Aluminum Matrix Composite Fabricated by Squeeze Casting

Lei Zhang; Rui Wu Zhang; Li Dong Wang; Ying Jie Qiao; Shi Chong Xu; Wei Dong Fei

doi:10.4028/www.scientific.net/AMR.750-752.2126

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 750-752Effect of MgO Coating on Whisker Preform Strength...

Effect of MgO Coating on Whisker Preform Strength of Aluminum Matrix Composite Fabricated by Squeeze Casting

Abstract:

In this paper, MgO with different contents was coated on the surface of magnesium borate whisker using chemical precipitation method. The resistance to compression of whisker perform was measured, and the effect of MgO coating on the deformation resistance of magnesium borate whisker perform was studied. The result shows that the compression strength of whisker perform sintered at 900°C was enhanced with increasing MgO coating ratio to magnesium borate whisker. The compression strength was increased from 0.80MPa for coating ratio of 0 to 1.34Mpa for coating ratio of 1:10. Then magnesium borate whisker-reinforced pure aluminum (MBOw/Al) composite without apparent microscopic defects was fabricated using modified whisker perform. The tensile strength and elastic modulus at room temperature attain 240MPa and 130GPa, respectively.

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Periodical:

Advanced Materials Research (Volumes 750-752)

Pages:

2126-2130

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.750-752.2126

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Online since:

August 2013

Authors:

Lei Zhang, Rui Wu Zhang, Li Dong Wang, Ying Jie Qiao, Shi Chong Xu, Wei Dong Fei

Keywords:

Metal Matrix Composite (MMC), MgO Coating, Perform, Squeeze Casting

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