Title

Effect of nickel oxide on crystallization and mechanical properties of MgO-Al2O3-SiO2-MoO3 glasses

Author

Manuela Alejandra Zalapa Garibay

Ana María Arizmendi Morquecho

SIMON YOBANNY REYES LOPEZ

Access level

Open Access

Summary or description

Introduction

Crystallization is a well-recognized practical means of improving the brittleness of glass.

Many glass-ceramics have been investigated, and some have been incorporated into

practical materials. Glass-ceramics in the MgO–Al2O3–SiO2 (MAS) system have attracted

much interest on account of their superior mechanical and thermal properties, i.e., high

strength and stability at high temperatures.

To investigate the effect of nucleating agents, this study investigates the crystallization

behavior of an MgO–Al2O3–SiO2-MoO3 glass with high % wt molybdenum oxide and low

% wt nickel oxide addition. Under a not reducing condition, crystals formed in the bulk of

the super cooled liquids, whereas melting in air yielded only surface crystallization. The

purpose of using of Nickel oxide as nucleating to modify the mechanical properties, is

based on the manipulation of the grain size during the solidification process. The first

crystalline phase precipitated inside the glass was α-cordierite and β-cordierite in glasses

doped with nickel oxides. Nickel oxide yielded a finer microstructure of the glass-ceramic.

Publish date

September, 2017

Publication type

Article

Publication version

Published Version

Format

application/pdf

Language

English

Source repository

Fuente de Objetos Científicos Open Access

Downloads

10

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