Shiqing Xu

Numerous sources have already demonstrated that varying annealing rates can result in distinct toughness and brittleness in glass. To determine the underlying mechanisms driving this phenomenon, molecular dynamic (MD) simulations were employed to investigate the microstructure of aluminosilicate glasses under different cooling rates, and then uniax...

Rare earth-doped oxyfluoride glass-ceramic (GC) demonstrate the physical, chemical, and mechanical stabilities of oxide glass and excellent optical properties of fluoride crystals and is regarded as a potential material for developing advanced optical devices. In the present study, Li+-doped NaYF4:Er,Yb GC was prepared by the traditional melt-quenc...

Realizing high-sensitivity, accurate non-contact cryogenic optical thermometry based on upconversion (UC) luminescence holds significant application value in numerous advanced technology fields. Here, we report a novel temperature sensing strategy using...

A kind of float glass spot defect, characterized by small size, metallic luster, and difficult to clean, adheres only to the lower surface (contacts with molten tin) of the float glass ribbon. This defect causes serious production loss. Therefore, determining the precise source of this spot defect and the effective prevention of its occurrence is v...

Accurate simulation and measurement of the residual stress are pressing needs in ultrathin glass (UTG) industrial stable production. Herein, the heat transfer in an annealing lehr and the residual stresses at different positions along the width of the UTG ribbon were simulated by the finite element method and measured via the Vickers indentation. T...

All-optical logic gates operations are highly desired for optical communications and data processing because of the high computing speed, low power consumption, and parallel processing. Here, we develop a combinational upconversion (UC) all-optical logic system based on glass-ceramic (GC) material, which uses two external near-infrared excitation s...

First-principle theory was used to design NaGdF4:Yb³⁺/Er³⁺ crystal, where the density of state, X-ray diffraction and optical coefficient had been studied through a generalised gradient approximation within density functional theory to predicate the effect of rare earth ion doping on the electronic and optical performance. Besides, NaGdF4:Yb³⁺/Er³⁺...

A complex UC logic system using 1470 and 1550 nm dual‐wavelength as triggering signals has been developed to implement multilevel logic operations. Gd2(MoO4)3:Yb³⁺/Er³⁺ upconversion luminescence material can achieve significantly emission enhancement upon simultaneous excitation of 1470 and 1550 nm dual‐wavelength due to the synergistic effect of t...

The rational development of multicolor upconversion (UC) luminescent is particularly promising for achieving high-tech anti-counterfeiting and security applications. Here, the Ho3+ and Yb3+ ions co-doped KLa(MoO4)2 material can achieve multicolor UC luminescence by thermally manipulating the electron transition process, which could be developed to...

Realizing multicolor emissions of upconversion (UC) luminescence materials is of significant importance for information security and anticounterfeiting fields. Herein, a strategy is reported to achieve UC multicolor luminescence through manipulating the electronic transition process under dual‐wavelength excitation. The novel color can be produced...

The float glass contains various defects for reasons of raw materials and production process. These defects can be observed on the end images of the glass. Since the defects are correlated with specific links of the production process, it is possible to discover the process problems by identifying the location and type of defects in end images. Bas...

Bubbling has been a constant feature in the float glass furnace since the inception of this melting technology. Although bubbling can enhance glass quality, economize energy consumption, and stabilise the production process, the quality of products from some float glass production lines after using bubbling are worse than when they are not used. Th...

This study examines a float glass furnace model with an asymmetric lateral temperature distribution and a variable temperature difference at the botom of the working chamber using the FLOTRAN module of the ANSYS software package. Temperature fluctuations induced by the local density gradient fluctuations result in the redistribution of the main par...

In melting float glass, the presence of iron ions in the raw material cannot be avoided. The iron ions can be used as glass colourants and infrared light absorbers. However, when the iron content of the float glass liquid changes, the heat permeability of the glass will be significantly affected and this affects the entire glass fluid flow. Therefo...

Viscous molten glass with a high temperature flows into a tin bath through a complicated three-phase flow during the production of glass. It is very important to understand the characteristics of evolution for optimizing float-glass design as well as preparing high-quality flat glass. A three-phase flow system containing molten glass, molten tin un...

Two all-electric melting furnaces, 15t/d and 36t/d, were simulated and analyzed with the ANSYS FLUENT 14.0 software add-on MHD module. The electric power density distribution, temperature distribution, and velocity field in the glass furnaces of these two models were analyzed. Electric power density and temperature are found to increase initially a...

Silica (SiO2)/polymethyl methacrylate (PMMA) coating was prepared using sol-gel method and the influence of the coatings on the strength of glass was investigated. The SiO2/PMMA coatings were obtained from sols synthesized by tetraethylorthosilicate (TEOS), methyl methacrylate (MMA) and gamma-methacryloxypropyltrimethoxysilane (KH-570). The float g...