chanelink logo
CHANELINK
Nederlands

Progress has been made in the corrosion mechanism of alkali aluminum phosphate glass at Shanghai Optics and Machinery Institute

123
2024-07-10 14:33:18
Bekijk vertaling

Recently, the Advanced Laser and Optoelectronic Functional Materials Department of the Shanghai Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, has made new progress in the corrosion mechanism of alkali aluminophosphate glass. The research findings were published in The Journal of Physical Chemistry C under the title "Formation Mechanism of Crystal Phase during Corrosion of Aluminum Phosphate Glasses".

Alkaline aluminum phosphate glass has important applications in the solidification of nuclear waste glass and other fields. Among them, chemical stability is crucial for its application. To gain a deeper understanding of the chemical stability of glass, it is necessary to understand its chemical corrosion mechanism. The study of glass corrosion mechanisms has a long history, but there are still many controversies. Previous research has mainly focused on borosilicate glass, while there has been less research on the corrosion mechanism of phosphate glass.

In this study, researchers conducted atomic scale analysis of the structure of alkali aluminum phosphate glass before and after corrosion using various advanced nuclear magnetic resonance techniques, and found that there were two different dissolution modes of the Q1 and Q0 groups in the glass in aqueous solution. This confirms that the crystal layer on the surface of phosphate glass originates from the dissolution of glass components and subsequent deposition on the glass surface. Revealed the dissolution mechanism of alkaline aluminum phosphate glass in aqueous solution and the formation mechanism of surface crystal layer. The research results deepen our understanding of the chemical stability mechanism of alkaline aluminum phosphate glass.

(a) The two dissolution modes of glass. (b) 27Al {27Al} 2D WURST 2Q-1Q spectrum of corroded glass

Source: Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences

Gerelateerde aanbevelingen

  • Fraunhofer ISE develops a faster laser system for wafer processing

    By using a new type of laser, the processing speed of wafers can be 10 to 20 times faster than before. This is the result of a research project at the Fraunhofer Institute for Solar Systems in Germany.Researchers have developed a prototype that can use ultraviolet waves to carve the most intricate structures on silicon wafers. The new system concept enables solar cell manufacturers to perform lase...

    2023-12-23
    Bekijk vertaling

  • Samsung Heavy Industries Developing a Laser High Speed Welding Robot for Liquefied Natural Gas Ships

    South Korea's Samsung Heavy Industry announced on Thursday that it has developed the first laser high-speed welding robot in the maritime field, aimed at significantly improving the construction efficiency of liquefied natural gas (LNG) transport ships.This new technology is specifically designed for rapid welding of thin film panels used in cargo compartments of liquefied natural gas transport sh...

    2023-09-22
    Bekijk vertaling

  • Laser engraving: Researchers have created a revolutionary technology

    Recently, a group of researchers from the University of Cambridge developed an innovative method of using high-energy lasers to improve 3D printing of metals. This discovery has the potential to change the way we design and manufacture complex metal objects.3D printing has completely changed the landscape of the manufacturing industry. However, it faces obstacles, especially in terms of the charac...

    2023-11-24
    Bekijk vertaling

  • Ultrafast laser technology continues to reach new heights

    Ultra short pulse lasers, such as femtosecond lasers, are increasingly becoming easy-to-use plug and play devices suitable for a wide range of industrial and biomedical applications. Fifteen years ago, the volume of these lasers was still very large, requiring daily cleaning of optical components, regular maintenance of cooling water, and continuous optimization of laser parameters. Nowada...

    2023-11-06
    Bekijk vertaling

  • Researchers use laser doping to enhance the oxidation of IBC solar cells

    Researchers from the International Solar Research Center at Konstanz and Delft University of Technology have discovered a method to pattern the back end of a cross finger rear contact battery, improving its efficiency by making certain parts of the solar cell thicker.Researchers have developed a new technology that enhances oxidation in selected areas by patterning the back or back of IBC solar ce...

    2024-02-20
    Bekijk vertaling