chanelink logo
CHANELINK
Ελληνικά

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

840
2024-07-10 14:33:18
Δείτε τη μετάφραση

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

Σχετικές προτάσεις

  • Outlook - Future of miniaturized lasers

    The disruptive miniaturization design of fiber lasers is feeding back into the handheld laser welding market. The handheld laser welding that enters the trunk is bathed in the luster of black technology, making traditional argon arc welding and electric welding tremble.In the early years, argon arc welding was the most commonly used thin plate welding method among our ancestors, but its drawbacks ...

    2023-12-19
    Δείτε τη μετάφραση

  • Researchers use lasers to measure and manipulate magnetic ripple interactions

    One vision for computing the future is to use ripples in magnetic fields as the fundamental mechanism. In this application, magnetic oscillators can be comparable to electricity and serve as the foundation of electronic products.In traditional digital technology, this magnetic system is expected to be much faster than today's technology, from laptops and smartphones to telecommunications. In quant...

    2024-03-05
    Δείτε τη μετάφραση

  • SPIE Optics and Photonics 2025: Kyle Myers from Puente elected as SPIE Chair

    The founder and principal of Puente Solutions Kyle J. Myers has been elected to serve as the 2026 Vice President of SPIE, the international society for optics and photonics. With her election, Myers joins the SPIE presidential chain. She will serve as president-elect in 2027, and as the Society’s president in 2028. Newly-elected: Myers, McNally, Rubinsztein-Dunlop, Wade, Medicus, and ErdmannTh...

    08-08
    Δείτε τη μετάφραση

  • LAP launches CAD-PRO Xpert, an industrial laser projector using cutting-edge technology platforms

    LAP launched its latest version of the industrial laser projection system CAD-PRO Xpert at this year's JEC World. This innovation signifies the company's commitment to providing the most advanced laser engineering for various industries to achieve precise, efficient, and reliable laser guidance and positioning tasks, which is an important milestone.Redefining laser projection in the production pro...

    2024-03-07
    Δείτε τη μετάφραση

  • Shandong Zhancheng Intelligent Manufacturing Laser Cutting Equipment is Popular Overseas

    The high-end laser cutting machine developed and produced by Dongying Lijin Zhancheng Laser Intelligent Manufacturing Company has become popular in overseas markets this spring. This equipment can not only use laser to quickly cut steel, but also freely swing on steel, "showing" beautiful pictures. The laser travels like a paintbrush flying, and the hard steel plate has been hollowed out into be...

    03-21
    Δείτε τη μετάφραση