Mechanism Research of Pr6O11 Addition on Wear Resistance of Alumina Ceramics

Yang Wu; Bo Lin Wu; Si Long Bi

doi:10.4028/www.scientific.net/AMR.1104.27

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Interface Reaction between Nd₂O₃ and Alumina Single Crystal
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Computational Results Show Gas Phase Reactions Have Great Impact on the Deposition Rate of Silicon in Siemens CVD Reactors
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1104Mechanism Research of Pr6O11 Addition on Wear...

Mechanism Research of Pr₆O₁₁ Addition on Wear Resistance of Alumina Ceramics

Abstract:

Many literatures reported rare earth ions would segregate at grain boundaries toinhibit grain growth and improve the ceramic performance. However, the mutualinfluence between segregation and alumina grains was rarely seen in thereports. In this article, interface reaction between single crystal alumina (inorder to eliminate the influence of grain boundaries) and praseodymium oxidewas designed to further understand the influence mechanism. The resultssuggested that a composite oxide was formed at the junctions. Besides, largestresses produced between the composite oxide and alumina because of the thermalexpansion coefficient difference. This stresses would weaken grain boundariesbonding strength and reduce wear resistance.

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Periodical:

Advanced Materials Research (Volume 1104)

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27-30

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https://doi.org/10.4028/www.scientific.net/AMR.1104.27

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Online since:

May 2015

Authors:

Yang Wu, Bo Lin Wu*, Si Long Bi

Keywords:

Ceramic, Grain Boundaries, Segregation, Wear Resistance

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References

[1] Cho. J, Wang. C, Chan. H, Rickman. J, Harmer. M. Role of segregating dopants on the improved creep resistance of aluminum oxide. Acta. mater. 1999 (47) 4197-207.

DOI: 10.1016/s1359-6454(99)00278-5

Google Scholar

[2] Takigawa. Y, Ikuhara. Y, Sakuma. T. Grain boundary bonding state and fracture energy in small amount of oxide-doped fine-grained Al2O3. J. Mater. Sci. 1999 (34) 1991-7.

Google Scholar

[3] French. J D, Zhao. J, Harmer. M P, Chan. H M, Miller. G A. Creep of duplex microstructures. J. Am. Ceram. Soc. 1994 (77) 2857-65.

Google Scholar

[4] Cho. J, Harmer M P, Chan H M, Rickman J M, Thompson A M. Effect of yttrium and lanthanum on the tensile creep behavior of aluminum oxide. J. Am. Ceram. Soc. 1997 (80) 1013-7.

DOI: 10.1111/j.1151-2916.1997.tb02936.x

Google Scholar

[5] Li. Y Z, Wang. C, Chan. H M, Rickman. J M, Harmer. M P, Chabala. J M et al. Codoping of alumina to enhance creep resistance. J. Am. Ceram. Soc. 1999 (82) 1497-504.

DOI: 10.1111/j.1151-2916.1999.tb01947.x

Google Scholar

[6] West. G, Perkins. J, Lewis. M. The effect of rare earth dopants on grain boundary cohesion in alumina. J. Eur. Ceram. Soc. 2007 (27) 1913-8.

DOI: 10.1016/j.jeurceramsoc.2006.07.001

Google Scholar

[7] Krefetz. S B, Fischer. T E. Wear of yttria-doped α-alumina: effects of grain-boundary composition and machine stiffness. Wear. 1997 (211) 141–145.

DOI: 10.1016/s0043-1648(97)00063-x

Google Scholar

[8] Moya. E, Moya. F, Lesage. B, Loudjani. M, Grattepain. C. Yttrium diffusion in α-alumina single crystal. J. Eur. Ceram. Soc. 1998 (18) 591-4.

DOI: 10.1016/s0955-2219(97)00170-2

Google Scholar

[9] Dogan. C P, Hawk. J A. Effect of grain boundary glass composition and devitrification on the abrasive wear of Al2O3. Wear. 1995 (181-183) 129-137.

DOI: 10.1016/0043-1648(94)07008-3

Google Scholar

[10] Goswami. A P, Roy S, Mitra. M, Das. G C. Influence of powder, chemistry and microstructure on the wear resistance of liquid-phase-sintered Al2O3. Wear. 2000 (244) 1-14.

DOI: 10.1016/s0043-1648(00)00407-5

Google Scholar

[11] Dickey. E C, Frazer. C S, Watkins. T R, Hubbard. C R. J. Eur. Ceram. Soc. 1999 (19) 2503-2509.

Google Scholar

[12] Xiong. Y, Wu. B L. Preparation of the system of MgO-CaO-SiO2-Al2O3-Y2O3 wear-resistant alumina ceramics. Adv Mater Res. 2014 (941-944) 542-546.

Google Scholar