chanelink logo
CHANELINK
Português

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

188
2024-07-10 14:33:18
Ver tradução

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

Recomendações relacionadas

  • The global laser technology market is expected to reach 29.5 billion US dollars by 2029

    Recently, Markets And Markets released a five-year assessment report on the global laser industry. According to the report, the global laser technology market is expected to reach $20 billion by 2024 and is projected to reach $29.5 billion by 2029, with a compound annual growth rate of 8.0% during the forecast period.Global Laser Technology Market ForecastThe reasons for market growth include: the...

    2024-07-25
    Ver tradução

  • Shanghai Institute of Optics and Fine Mechanics has made progress in the field of femtosecond laser air filamentation self focusing threshold research

    Recently, the research team of the State Key Laboratory of Intense Field Laser Physics of the Chinese Academy of Sciences Shanghai Institute of Optics and Fine Mechanics has made progress in the research on the repetition rate dependent femtosecond laser air filamentation self focusing threshold. The relevant research results were published in Optics Express under the title "Pulse repetition rate ...

    2024-08-02
    Ver tradução

  • Laser&Photonics Reviews New Type Quartz Crystal Space Harmonic Modulation for Efficient Vacuum UV Laser

    Professor Zhang Huaijin and Yu Haohai from the Institute of Crystal Materials of Shandong University (the State Key Laboratory of Crystal Materials) proposed a spatial harmonic modulation strategy, which realizes the phase matching conditions that can be manipulated artificially in the new quartz crystal, and realizes the effective frequency doubling within the VUV range. The relevant research is ...

    2023-08-30
    Ver tradução

  • EO Technologies from South Korea enters the glass substrate processing market

    Recently, EO Technologies, a well-known semiconductor laser processing equipment manufacturer in South Korea, is emerging in the glass substrate processing market.It is understood that EO Technologies is entering the glass substrate TGV market based on its UV laser drilling equipment originally used in PCB substrate technology. TGV technology is the core process for drilling holes inside glass sub...

    2024-06-18
    Ver tradução

  • Topological high-order harmonic spectroscopy in Communications Physics

    It is reported that researchers from the University of Salamanca in Spain have demonstrated a high-order harmonic spectroscopy scheme generated by the interaction between a structured driving beam and a crystal solid target. This work promotes the topological analysis of high-order harmonic fields as a spectroscopic tool to reveal nonlinearity in the coupling of light and target symmetry. The rele...

    2024-01-15
    Ver tradução