chanelink logo
CHANELINK
Polski

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

844
2024-07-10 14:33:18
Zobacz tłumaczenie

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

Powiązane rekomendacje

  • Laser Swing Welding: Principles, Characteristics, and Applications

    Application backgroundLaser swing welding technology was born out of the urgent demand for welding quality and efficiency in modern manufacturing industry. Traditional welding technology has shortcomings in precision, strength, and complex structures, which has led to the rapid application of laser welding in various fields. However, it still has defects such as pores and cracks, and has limitatio...

    2024-12-30
    Zobacz tłumaczenie

  • Southeast University makes new progress in quantum efficiency research of van der Waals light-emitting diodes

    Recently, Professor Ni Zhenhua from the School of Electronic Science and Engineering at Southeast University, Professor Lv Junpeng from the School of Physics, Professor Liu Hongwei from the School of Physical Science and Technology at Nanjing Normal University, and Professor Zhou Peng from the School of Microelectronics at Fudan University collaborated to propose a van der Waals light-emitting dio...

    2024-10-28
    Zobacz tłumaczenie

  • Breakthrough development of terahertz quantum cascade lasers

    With the development of groundbreaking components for terahertz quantum cascade lasers, a huge leap has been made in the field of laser technology. A group of researchers have successfully designed a broadband single-chip external coupler with the potential to redefine the functionality of terahertz QCL.The new external coupler is fundamentally based on planar bimetallic waveguides. Its design is ...

    2024-01-04
    Zobacz tłumaczenie

  • Xunlei Laser 20000W Large Format Laser Cutting Machine Winning the Bid for YD Company, a Famous Enterprise in the Steel Structure Industry

    Recently, the Xunlei Laser HI series 20000W large format laser cutting machine won the bid of YD Company, a well-known steel structure company, to help YD steel structure improve quality, efficiency, and green transformation!Established in 2009, YD Steel Structure is a large-scale specialized steel formwork enterprise that has established deep business partnerships with leading construction indust...

    2023-11-06
    Zobacz tłumaczenie

  • China University of Science and Technology has made progress in the study of the regulatory mechanism of thermally induced delayed fluorescence

    Recently, Professor Zhou Meng's research group at the University of Science and Technology of China collaborated with Professor Fu Hongbing's team at the Capital Normal University to reveal the mechanism by which aggregation effects regulate the luminescent properties of thermally delayed fluorescent materials. The research findings, titled "Aggregation Enhanced Thermally Activated Delayed Fluoros...

    2024-06-28
    Zobacz tłumaczenie