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false4DOIDB.FID 10.5880/fidgeo.2023.019 Springsklee, Christina Christina Springsklee 0000-0001-7830-9794 Ludwig-Maximilians-Universität München, Munich, Germany Scheu, Bettina Bettina Scheu 0000-0002-0478-1049 Ludwig-Maximilians-Universität München, Munich, Germany Seifert, Christoph Christoph Seifert 0009-0006-6921-3727 Ludwig-Maximilians-Universität München, Munich, Germany Manga, Michael Michael Manga 0000-0003-3286-4682 University of California, Berkeley, USA Cimarelli, Corrado Corrado Cimarelli 0000-0002-5707-5930 Ludwig-Maximilians-Universität München, Munich, Germany Gaudin, Damian Damian Gaudin 0000-0001-5888-9269 Ludwig-Maximilians-Universität München, Munich, Germany Trapp, Oliver Oliver Trapp 0000-0002-3594-5181 Ludwig-Maximilians-Universität München, Munich, Germany Dingwell, Donald B. Donald B. Dingwell 0000-0003-3683-7083 Ludwig-Maximilians-Universität München, Munich, Germany GFZ Data Services 2023 ash electric charge Faraday cage shock-tube jet rapid decompression glass beads EPOS multi-scale laboratories rock and melt physical properties EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC ELECTRICITY > LIGHTNING EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PHENOMENA > LIGHTNING EARTH SCIENCE > HUMAN DIMENSIONS > NATURAL HAZARDS > VOLCANIC ERUPTIONS EARTH SCIENCE > SOLID EARTH > TECTONICS > VOLCANIC ACTIVITY > ERUPTION DYNAMICS > ASH/DUST DISPERSION EARTH SCIENCE > SOLID EARTH > TECTONICS > VOLCANIC ACTIVITY > ERUPTION DYNAMICS > VOLCANIC EXPLOSIVITY EARTH SCIENCE SERVICES > ENVIRONMENTAL ADVISORIES > GEOLOGICAL ADVISORIES > VOLCANIC ACTIVITY EARTH SCIENCE SERVICES > ENVIRONMENTAL ADVISORIES > WEATHER/CLIMATE ADVISORIES > DUST/ASH ADVISORIES Springsklee, Christina Christina Springsklee 0000-0001-7830-9794 Ludwig-Maximilians-Universität München, Munich, Germany Springsklee, Christina Christina Springsklee 0000-0001-7830-9794 Ludwig-Maximilians-Universität München, Munich, Germany Scheu, Bettina Bettina Scheu 0000-0002-0478-1049 Ludwig-Maximilians-Universität München, Munich, Germany Fragmentation Lab (Ludwig-Maximilians-University Munich, Germany) 9cd562c216daa82792972a074a222c52 Ludwig-Maximilians University of Munich, Munich, Germany Springsklee, Christina Ludwig-Maximilians-Universität München, Munich, Germany Scheu, Bettina Ludwig-Maximilians-Universität München, Munich, Germany 2020-08-18 Dataset 10.30909/vol.06.02.437445 10.1007/s004450050149 10.1130/G34802.1 10.1016/j.epsl.2019.02.024 10.5880/fidgeo.2022.009 10.1029/2022JB024390 10.1029/2019GL084678 CC BY 4.0 This data publication provides data from 39 experiments performed in 2021 to 2022 in the Gas-mixing lab at the Ludwig Maximilian University of Munich (Germany). The experiments were conducted to investigate the charging and discharging potential of decompressed soda-lime glass beads in varying enveloping gas composition and two different transporting gas species (argon and nitrogen).
The experimental setup is a modified version of an apparatus first developed by Alidibirov and Dingwell (1996) and further modified by Cimarelli et al. (2014), Gaudin and Cimarelli (2019), and Stern et al. (2019) to enable the detection and quantification of discharges caused by the interaction of the discharging particles. The latest modifications enable the setup to perform experiments under gas-tight conditions allowing to test different atmospheric composition and pressure and to sample the gas within the particle collector tank.

The sample material was ejected from the autoclave into the particle collector tank that is insulated from the autoclave and works as a Faraday cage. Discharges going from the jet to the nozzle were recorded by a datalogger. Additionally, the ejection of the decompressed material was recorded by a high-speed camera. The gas composition in the collector tank was changed from air to CO2 and a mixture of CO2 and CO. The particle collector tank was conditioned in two different modes: purging three times the tank with the desired gas composition or three times of purging and applying a vacuum in between. Analysis of gas samples taken from the collector tank before conducting the experiments revealed that in both cases a complete removal of the air was not achieved, but significantly reduced by the evacuation-purging method. Two gases were used to pressurize the sample within the autoclave: Nitrogen and Argon. The experimental results were compared to previous experiments (Springsklee et al., 2022a; Springsklee et al., 2022b).