Structural analysis of molten materials by a remote fiber optic Raman sensor

Bohong Zhang; Hanok Tekle; Ronald J. O'Malley; Todd Sander; Jeffrey D. Smith; Rex E. Gerald II; Jie Huang

doi:10.1117/12.2663853

13 June 2023 Structural analysis of molten materials by a remote fiber optic Raman sensor

Bohong Zhang, Hanok Tekle, Ronald J. O'Malley, Todd Sander, Jeffrey D. Smith, Rex E. Gerald II, Jie Huang

Proceedings Volume 12532, Optical Waveguide and Laser Sensors II; 125320N (2023) https://doi.org/10.1117/12.2663853
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

Abstract

This study presents a novel in situ high-temperature fiber optic Raman probe that enables the study of the physical properties and structure of molten samples at temperatures up to 1400 °C. To demonstrate the functionality of the high-temperature fiber optic Raman probe, different composition mold fluxes were evaluated in this report. The Raman spectra at flux molten temperature were successfully collected and analyzed. A deconvolution algorithm was employed to identify peaks in the spectra associated with the molecular structure of the components in each sample. The experimental results demonstrate that the composition-dependent Raman signal shift can be detected at high temperatures, indicating that molten materials analysis using a high-temperature Raman system shows significant promise. This flexible and reliable high-temperature Raman measurement method has great potential for various applications, such as materials development, composition and structure monitoring during high-temperature processing, chemical identification, and process monitoring in industrial production.

Conference Presentation

Citation Download Citation

Bohong Zhang, Hanok Tekle, Ronald J. O'Malley, Todd Sander, Jeffrey D. Smith, Rex E. Gerald II, and Jie Huang "Structural analysis of molten materials by a remote fiber optic Raman sensor", Proc. SPIE 12532, Optical Waveguide and Laser Sensors II, 125320N (13 June 2023); https://doi.org/10.1117/12.2663853

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