Paper Title:
Electronic Binding Energy Changes of Elements in Al2O3-MgAlON Composite during the Crack Healing Process
  Abstract

Using Al, MgO and Al2O3 as raw materials, Al2O3-MgAlON composite was synthesized in N2 atmosphere by hot-press sintering at 900°C. Cracks prepared on the sample surface were healed at 1200°C×6hrs. Phase composition and element chemical state of sample were studied before and after healing. The results showed that: after healing process Al and MgO phase disappeare, and AlN and MgAlON phase appear, all kinds of elements in Al2O3-MgAlON material change their chemical state after the healing treatment, the changed electronic binding energy is Al 0.05ev, Mg 0.08ev, O 2.58ev or N 1.02ev respectively, and the chemical composition and crystal structure of MgAlON phase also change, all these change are helpful for crack healing process of Al2O3-MgAlON material.

  Info
Periodical
Advanced Materials Research (Volumes 287-290)
Chapter
New Functional Materials
Edited by
Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li
Pages
205-208
DOI
10.4028/www.scientific.net/AMR.287-290.205
Citation
D. Y. Yang, H. Y. Yuan, F. L. Qian, G. H. Wei, K. Zhu, J. Wu, J. W. Liu, "Electronic Binding Energy Changes of Elements in Al2O3-MgAlON Composite during the Crack Healing Process", Advanced Materials Research, Vols. 287-290, pp. 205-208, 2011
Online since
July 2011
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$32.00
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