Effect of milling time on the crystallite size and microstructure of Al2O3/Mo Nano composite

Mortazavi, Ali; Razavi, Mansour; Ebadzadeh, Touraj; Sedaghat Ahangari Hossein Zadeh, Ali

doi:10.30501/acp.2016.70025

Effect of milling time on the crystallite size and microstructure of Al2O3/Mo Nano composite

Authors

Ali Mortazavi ¹

Mansour Razavi ²

Touraj Ebadzadeh ³

Ali Sedaghat Ahangari Hossein Zadeh ¹

¹ MERC, MERC

² Ceramic Division, MERC

³ Ceramic , Merc

10.30501/acp.2016.70025

Abstract

In this paper, the production of Al2O3-Mo nano-composites via mechanical milling was investigated. Molybdenum and alumina powders with certain ratios were grounded in a planetary ball mill at different times. XRD technique was used to determine the crystallite size of the milled powders. The microstructure of milled powders was studied using optical and electron microscopes. The crystallite sizes of milled powders were in nano-meter scale and increasing the milling time led to decreasing of crystallite size. Microstructural investigations showed uniform distribution of ultrafine second phase in matrix.

Keywords

Nano

Composite

Alumina matrix

Microstructure

Subjects