chanelink logo
CHANELINK
한국어

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

846
2024-07-10 14:33:18
번역 보기

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

관련 추천

  • Polarization of Laser Writing Waveguides Controlled by Liquid Crystal

    German researchers have developed a method for controlling and manipulating optical signals by embedding liquid crystal layers into waveguides created by direct laser writing. This work has produced devices capable of electro-optic control of polarization, which may open up possibilities for chip based devices and complex photonic circuits based on femtosecond write waveguides.Researcher Alexandro...

    2024-03-13
    번역 보기

  • Bodor Laser has been approved by Shandong Engineering Research Center

    Recently, the Development and Reform Commission of Shandong Province announced the list of Shandong Engineering Research Centers for 2024. bodor Laser has been recognized as the "Advanced Laser High end Intelligent Manufacturing and Application Shandong Engineering Research Center" and is the only enterprise in the laser intelligent manufacturing industry to be listed.As an important component of ...

    2024-07-17
    번역 보기

  • Lumiotive Launches New LiDAR Sensor LM10

    Recently, optical semiconductor developer Lumiotive, headquartered in Seattle, USA, launched a new LiDAR sensor LM10, which is its first fully produced product of light controlled metasurface (LCM) technology designed for digital beam steering.The developers stated that compared to mechanical systems, their digital beam steering method overcomes the limitations of traditional LiDAR sensors in term...

    2023-09-02
    번역 보기

  • Due to breakthroughs in microchip photonics, microwave signals have now become very accurate

    Zhao Yun/Columbia Engineering Company provided an advanced schematic of a photonic integrated chip, which aims to convert high-frequency signals into low-frequency signals using all optical frequency division.Scientists have built a small all optical device with the lowest microwave noise ever recorded on integrated chips.In order to improve the performance of electronic devices used for global n...

    2024-04-01
    번역 보기

  • Analysis of Development Prospects and Technological Trends in the Optical Industry

    As a core supporting field of modern technology, the optical industry has broad and diversified development prospects, benefiting from the cross drive of multiple emerging technologies. The following is a systematic analysis from the perspectives of technology trends, application areas, challenges, and opportunities: Core driving forces and growth areas1. Optical communication and 5G/6GDemand ex...

    04-30
    번역 보기