A Novel Glass Ceramic Back Plate Embedded with Needle-like Tetragonal TiO₂

Abstract

In this smart era, more severe challenges have been brought to the mechanical performance of glass ceramic (GC)-based back plate. Herein, a new kind of GCs, the GCs embedded with high-aspect-ratio needle-like tetragonal TiO₂, is developed. A comprehensive study was conducted to unearth the microstructure, glassy structure, crystallisation properties, and mechanical performance. Remarkably, in comparison with the precursor glass, the optimized GCs exhibits much stronger mechanical performance with Vickers hardness of 6.83 GPa, elastic modulus of 80.64 GPa, and fracture toughness of 2.63 MPa·m^1/2, because of the constructured net-shaped microstructure via needle-like morphologied crystals with high aspect ratio among glass matrix.

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