Effects of acoustic shock waves on the structural and optical properties of cadmium borate

• Published in: Journal of solid state chemistry 2024-12, Vol.340, p.125029, Article 125029
• Main Authors: Britto Dhas, S. A. Martin, Pradeepa, A., Oviya, S., Bincy, F. Irine Maria, Muthuvel, V., Sridhar, Jayavel, Kumar, Raju Suresh, Almansour, Abdulrahman I., kim, Ikhyun
• Format: Article
• Language: English
• Subjects: Acoustic pressure; Cadmium borate; Shock waves
• ISSN: 0022-4596
• DOI: 10.1016/j.jssc.2024.125029

Cadmium borate (CdB₂O₄), an inorganic compound combining transition metals and non-metals, has a broad range of optical applications. In this study, CdB₂O₄ was subjected to acoustic transient pressure using a semi-automatic Reddy tube, with shock pulses applied at counts of 100, 200, 300, and 400 at a Mach number of 1.5, corresponding to a transient pressure of 0.59 MPa and a temperature of 520 K. Control and shock-treated samples were analyzed using XRD, Raman, FTIR, SEM, UV-DRS, and photoluminescence spectroscopy to investigate shock wave effects. The XRD analysis revealed peak disappearance, the formation of new peaks, increased crystallinity, and instability in crystallite size. Raman spectroscopy showed peak disappearance, shifts, and broadening of lattice modes. SEM indicated increased particle size and agglomeration under shock conditions, consistent with changes in crystallinity. UV-DRS analysis shows a slight change in their band gap. Photoluminescence exhibited fluctuating trends in luminescent properties after the shock treatment. The findings reveal that CdB₂O₄'s structural and optical properties are sensitive to acoustic pressure, suggesting its potential for tailored optical behavior in specific applications. These results enhance our understanding of how acoustic pressure affects CdB₂O₄ and open new possibilities for optimizing its use in high-pressure applications. [Display omitted] •CdB2O4 was subjected to acoustic shock pulses at counts of 100, 200, 300, and 400 at a Mach number of 1.5, transient pressure of 0.59 MPa.•Shock pulses caused minor changes in CdB2O4's properties while preserving its structural stability.•CdB2O4's resilience to shock suggests its potential for high-pressure optical and electronic applications.