Controlled Elasticity in Nano-Structured Metallic Glass by Ion Implantation Method

Abstract:

Article Preview

Different reactivity of ions has been implanted into Zr-Cu metallic glass to obtain nano-structured surface with controlled elasticity. The penetration of glass forming element of Ni+ into crystalline Zr-Cu stabilizes glassy phase to induce crystalline-amorphous (c-a) transition during implantation process. In the meanwhile, penetration of N+ into glassy matrix induces precipitation of (Zr, Cu)N at the mean penetration depth of N. Critical N concentration for nitride formation is estimated to be (Zr,Cu)-20at%N, which also suggests existing of N solid solution of glassy phase. Inert element of Ar+ yields dispersion of nano-voids among glassy matrix. Nano-indentation tests reveal that Young’s modulus of ion implanted glassy film dramatically changes with respect to the induced nano-structure, to decrease 0.4 times for Ar+, to increase 1.3 times for N+ as comparison with that for as-deposited state.

Info:

Periodical:

Materials Science Forum (Volumes 561-565)

Main Theme:

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee

Pages:

1315-1318

DOI:

10.4028/www.scientific.net/MSF.561-565.1315

Citation:

S. Muraishi et al., "Controlled Elasticity in Nano-Structured Metallic Glass by Ion Implantation Method", Materials Science Forum, Vols. 561-565, pp. 1315-1318, 2007

Online since:

October 2007

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.