Paper Title:
Thermal Expansion Behavior of Al Hybrid Composite Reinforced with Aluminum Borate Whisker and Magnetic Ceramic Particle
  Abstract

Magnetic ceramic particles (NiFe2O4) and aluminum borate whiskers reinforced aluminum matrix composite was fabricated by squeeze casting technique, which had lower coefficients of thermal expansion (CTEs). The components and microstructure were characterized by X-ray diffraction (XRD), optical microscopy (OM) and scanning electron microscopy (SEM). The results showed that the CTE of the composite was lower than that of the composite only reinforced by aluminum borate whisker, and with increasing the number of thermal cycling, the CTE of the composite became low. The results indicated that the lower CTEs of composite resulted from ferromagnetic-paramagnetic transformation of the magnetic ceramic particles.

  Info
Periodical
Key Engineering Materials (Volumes 280-283)
Edited by
Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li
Pages
1697-1700
DOI
10.4028/www.scientific.net/KEM.280-283.1697
Citation
G. Li, Z. J. Li, W. D. Fei, "Thermal Expansion Behavior of Al Hybrid Composite Reinforced with Aluminum Borate Whisker and Magnetic Ceramic Particle", Key Engineering Materials, Vols. 280-283, pp. 1697-1700, 2005
Online since
February 2007
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$32.00
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