Microstructure Investigation on the Triple Junction with an Adjoining Twin Boundary in Nanocrystalline Palladium

J Mater Sci Technol ›› 2010, Vol. 26 ›› Issue (11): 1047-1050.

• Nanomaterials and Nanotechnology • Previous Articles Next Articles

Microstructure Investigation on the Triple Junction with an Adjoining Twin Boundary in Nanocrystalline Palladium

Yuchen Wang, Zhenxing Su, Dehai Ping

Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

Received:2010-01-08 Revised:2010-04-23 Online:2010-11-30 Published:2010-11-22
Contact: Yuchen Wang
Supported by:
the National Natural Science Foundation of China (No. 51071149) and the National Basic Research Program of China (No. 2006CB605103).

Abstract

Abstract: By using high-resolution transmission electron microscopy, a [¹110] triple junction (TJ) containing a twin boundary (TB) in nanocrystalline palladium has been observed along the common axis direction. Molecular statics calculation and imaging simulation were performed to determine the atomic structure of the TJ. The modeling structure exhibits that the adjoining TB is a distorted one, whilst other two adjoining grain boundaries (GBs) exist in steady equilibrium states. The present observation gives a clear example demonstrating that the adjoining TB can release the larger stresses residing at the junction.

Key words: Triple junction, Grain boundary, Molecular statics, High-resolution transmission electron microscopy (HRTEM)

Yuchen Wang, Zhenxing Su, Dehai Ping. Microstructure Investigation on the Triple Junction with an Adjoining Twin Boundary in Nanocrystalline Palladium[J]. J Mater Sci Technol, 2010, 26(11): 1047-1050.

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Microstructure Investigation on the Triple Junction with an Adjoining Twin Boundary in Nanocrystalline Palladium

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