Program

O.17 -- Oral, NCTP-40

Date: Wednesday, 29 July 2015

Time: 14h20 - 14h40

Structure correlation and mechanical properties in Al1-xSixN materials under densification

N. T. Trang, N. T. Giang, N. T. Thao, N. M. Hung, L. V. Vinh*

Department of Computational Physics, Hanoi University of Science and Technology, Hanoi, Vietnam

Molecular dynamics simulations of Al1-xSixN materials under densification were carried out to investigate their structure and mechanical properties. Such effects on other microscopic characteristics, such as bond-length distance, bond-angles and coordination number distribution have been observed. Based on the common neighbour analysis, we found that AlN and Si3N4 samples have amorphous state, whereas the remained Al1-xSixN samples show the structure of crystalline AlN mixed amorphous AlN which segregated with amorphous Si3N4. The strengthening enhancement is clearly observed in the sample with rich crystalline AlN and denser amorphous Si3N4.

Presenter: Le Van Vinh