chanelink logo
CHANELINK
Русский

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

678
2024-07-10 14:33:18
Посмотреть перевод

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

Связанные рекомендации

  • Researchers are studying lasers for controlling 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...

    2024-02-11
    Посмотреть перевод

  • Researchers have developed a quantum cascade laser in Italy

    The first all-Italian quantum cascade laser was born at the National Research Center in Pisa. The protagonists of this milestone are two researchers from the Nanoscience Institute, Lucia Sorba and Miriam Serena Vitiello, who together with their research team designed and developed this innovative device.In fact, quantum cascade lasers have unique potential for detecting gases and other molecules, ...

    2023-08-04
    Посмотреть перевод

  • Halo Industries raises 580 million yuan to achieve significant breakthrough in SiC laser processing field

    Recently, Halo Industries, an innovative technology company based in California, announced that it has successfully raised $80 million in Series B venture capital, marking a significant breakthrough in its use of laser technology to revolutionize the production of silicon carbide (SiC) semiconductor wafer substrates.This financing is led by the US Innovation Technology Fund (USIT) and involves hea...

    2024-07-18
    Посмотреть перевод

  • Nankai University makes progress in the field of free electron photon interactions

    Recently, a research team led by Professor Cai Wei and Professor Xu Jingjun from the School of Physical Sciences at Nankai University has experimentally confirmed for the first time the generation of polaritons, also known as Smith Purcell radiation, at the two-dimensional scale, and further demonstrated the ability of free electrons to regulate two-dimensional Smith Purcell radiation. The researc...

    02-11
    Посмотреть перевод

  • The new Casiris H6 4K UST tricolor laser projector is about to be launched through Indiegogo

    Casir is about to launch the H6 4K UST tricolor laser projector through Indiegogo. The new laser projector has a brightness of up to 3000 ANSI lumens and a BT.2020 color gamut coverage of 110%. It is an ultra short focus projector that runs on Android TV.The Casiris H6 4K UST tricolor laser projector is a brighter and more accurate version of the Casiris A6. It also has greater image projection ca...

    2023-09-18
    Посмотреть перевод