chanelink logo
CHANELINK
Français

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

119
2024-07-10 14:33:18
Voir la traduction

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

Recommandations associées

  • 20W High Power Fiber Optic Frequency Comb with 10 to 19 Power Outside Ring Frequency Stability

    High power optical frequency combs play a crucial role in nonlinear precision spectroscopy, extreme ultraviolet optical frequency comb generation, nuclear atomic clock research, and other fields. Fiber optic femtosecond lasers are the preferred solution for achieving high power optical frequency combs due to their simple structure, stable performance, and easy amplification. However, due to the un...

    2023-10-20
    Voir la traduction

  • 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
    Voir la traduction

  • Swiitol Launches E24 Pro: A Breakthrough in Laser Engraving Technology

    In order to completely change the world of laser engraving, Swiitol has launched the E24 Pro, a 24W integrated laser engraving machine with cutting-edge features and functions. The Swiitol E24 Pro showcases an innovative integrated structure laser engraving machine made of durable aluminum alloy. It is worth noting that the device can be used out of the box without installation, providing users wi...

    2023-11-23
    Voir la traduction

  • Germany has developed a fast, accurate, and wear-resistant laser drilling CFRP process

    Recently, scientists from the Hanover Laser Center (LZH) in Germany announced the successful development of an automated laser drilling process that can promote the processing of carbon fiber reinforced plastics (CFRP). They stated that this is particularly valuable in applications such as lightweight structures and sound insulation.Composite materials such as carbon fiber reinforced plastics (CFR...

    2024-03-06
    Voir la traduction

  • LASIT's Laser Revolution: Illuminating the Path to a Greener Future

    In the breakthrough transformation towards sustainable industrial practices, LASIT is at the forefront of the ecological revolution in laser marking technology. This evolution is not just about labeling products; This is about marking a sustainable future.Environmental Innovation: A New Era of Industrial PrecisionLASIT's laser technology is a model of environmental protection. Unlike traditional m...

    2023-11-28
    Voir la traduction