Phases Transformation Analysis of ZrO2 Ceramics after Laser Shock Processing

Abstract:

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Through phrase transformation analysis on ceramics samples after applied laser shock wave, study was made on micro-structure and mechanical performance transformation and transformation laws. Thus conclusions were drawn through analysis as follows: tensile stress was caused on back surface of TZP ceramics sample by laser shock wave, and further transformation was generated under tensile stress in a way that about 48% tetragonal phrases t-ZrO2 transformed into monoclinic phrases m-ZrO2, which expanded volume of and gave rises to micro-cracks, and relief stress and micro-cracks caused will absorb the energy of main cracks, which can impede expansion of main cracks and realize the aim of phrase transformation toughening.

Info:

Periodical:

Edited by:

Long Chen, Yongkang Zhang, Aixing Feng, Zhenying Xu, Boquan Li and Han Shen

Pages:

632-636

DOI:

10.4028/www.scientific.net/KEM.464.632

Citation:

L. F. Zhang et al., "Phases Transformation Analysis of ZrO2 Ceramics after Laser Shock Processing", Key Engineering Materials, Vol. 464, pp. 632-636, 2011

Online since:

January 2011

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Price:

$35.00

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