New PDF release: Advanced Materials Research QiR 12

By Bondan Tiara Sofyan

ISBN-10: 3037851791

ISBN-13: 9783037851791

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5] M. S. Patent 6497966, (2001). [6] E. di Russo, M. Burrati, S. Veronelli: Aluminium Alloys Composite Plates, US Patent 4426429, (1981). [7] G. S. Patent 44264294111097, (1974). : On the Effect of Additions of Cu and Mg on the Ductillity of AlSi Foundry Alloy Cast with A Cooling Rate of Approximately 3 K/s, Materials Science and Engineering A, 413-414, (2005), p. 561-566. D. Love: High-Velocity Impact of Low-Density Projectiles on Structural Aluminium Armor,” International Journal of Impact Engineering, Vol.

15]. The increase of hardness with SiC content is to be expected as SiC is significantly harder than Al. In addition the region of increased hardness had reduced porosity; again this is to be expected. Bondan Tiara Sofyan 25 a b Figure 7 : Hardness is not uniform from bottom to the top of samples (a) and b) hardnes is as a function of the percentage of Si external doped system in pure Al/SiC MMC’s after pressureless infiltration at 900oC for 1 hour and grey bar is for Al-Si based alloy internal doped system.

6. 6c (M:200x). The porosity was formed in the cluster of SiC and increased with higher volume fraction of SiC. al [12], the porosities were formed not only because of increasing of volume fraction of reinforcement, but also they were caused by conventional stir casting method which could not distribute particles well in the matrix. This results was in line with Zhou and Xu [13] who found that during stirring some of 48 Advanced Materials Research QiR 12 SiC particles was go toward to the top of aluminum liquid and accumulated when stirring was stopped.

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Advanced Materials Research QiR 12 by Bondan Tiara Sofyan


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