High Volume Fraction Al2O3/Al Composite Thixoforging in Pseudo-Semi-Solid State

Article Preview

Abstract:

In this paper the authors propose a new technology for high volume fraction ceramic/metal composites—pseudo-semi-solid thixoforging, based on metal semi-solid process combing with traditional powder metallurgy technology, and explain the differences with other technologies and characters in detail. At the same time the authors prepare the cup shells with high volume fraction Al2O3/Al composite by this technology. It proves that it is feasible for the high volume fraction ceramic/metal composites forming through metallographic analyses and three-point bending tests. The results show that the tough strength and degree of hardness of the samples with certain plasticity are high. It will play a very big role in accelerating the ceramics composites and high melt point materials being used in more fields and tamp the foundation for further studies of this technology.

You might also be interested in these eBooks

Info:

Periodical:

Solid State Phenomena (Volumes 116-117)

Pages:

725-729

Citation:

Online since:

October 2006

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2006 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Rankin D T, Stiglich J J , Peter D R et al.: Hot-Pressing and Mechanical Properties of Al2O3 with an Co-Dispersed Phase, J. Am. Ceram. Soc. Vol. 54(6) (1971), pp.277-281.

DOI: 10.1111/j.1151-2916.1971.tb12290.x

Google Scholar

[2] Sigl SL, Mataga P A, Dalgleish B J et al.: On the Toughness of Brittle Materials with a Ductile Phase, Acta Metall. Vol. 36(4) (1988), pp.945-953.

DOI: 10.1016/0001-6160(88)90149-6

Google Scholar

[3] Xudong Sun and Yeomans: Ductile Phase Toughened Brittle Materials, Mater. Sci. Technol. Vol. 12 (1996), pp.124-134.

Google Scholar

[4] Flinn B, Ruhle M and Evans A G: Toughening in Composites of Al2O3 Reinforced with Al, Acta Metall. Vol. 37(4) (1989), pp.3001-3006.

DOI: 10.1016/0001-6160(89)90336-2

Google Scholar

[5] Evans A G: Perspective on the Development of High-Toughness Ceramics, J. Am. Ceram. Soc. Vol. 73(2) (1990), pp.187-206.

Google Scholar

[6] LUO Shou-jing�CHENG Yuan-sheng and DU Zhi-ming: Pseudo-semi-solid thixoforging of Al/ SiCp ceramic matrix composite, Special casting and nonferrous alloy Vol. 25(1) (2005), pp.13-15.

Google Scholar

[7] LUO Shou-jing, CHENG Yuan-sheng and DU Zhi-ming: Pseudo-semi-solid thixoforging of ceramic matrix composite, Chinese Journal of nonferrous metal Vol. 14(8) (2004), p.1286� 1294.

Google Scholar

[8] LUO Shou-jin, CHENG Yuan-sheng and DU Zhi-ming: Pseudo-semi-solid thixoforging of ceramic matrix composite, Journal of Chinaes journal of materials research Vol. 19(2) (2005), p.107�112.

Google Scholar

[9] LUO Shou-jing, CHENG Yuan-sheng and DU Zhi-ming: Pseudo-semi-solid thixoforging of ceramic matrix composite and its use in satellite angle frames, Materials and engineering Vol. (1) (2005), pp.45-49.

Google Scholar

[10] DU Zhi-ming, CHENG Yuan-sheng and LUO Shou-jing: Experimental Study on the Thixoforging of High Silicon-Aluminum Alloy and Its Application in Automobile Piston, Proceedings of the 8th S2P Advanced Semi-Solid Processing of Alloy (2004).

Google Scholar

[11] CHENG Yuan-sheng, DU Zhi-ming and LUO Shou-jing: Rheological Behavior of Al2O3n/Alµ Composites in Pseudo-Semi-Solid State, Transactions of Nonferrous Metals Society of China Vol. 15(Special 2) (2005), pp.142-146.

Google Scholar

[12] XIE Shui-sheng and HUANG Sheng-hong: Technology of semi-solid metal process and its use, (Publishing house of metallurgy industry, 1999).

Google Scholar