<p>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 TiO<sub>2</sub>, 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<sup>1/2</sup>, because of the constructured net-shaped microstructure via needle-like morphologied crystals with high aspect ratio among glass matrix.</p>

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

  • Youfeng Zhong,
  • Mingzhong Wang,
  • Yu Rao,
  • Yinsheng Xu,
  • Xianghua Zhang,
  • Dong Wu,
  • Shisheng Lin,
  • Ping Lu

摘要

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·m1/2, because of the constructured net-shaped microstructure via needle-like morphologied crystals with high aspect ratio among glass matrix.