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- W2091128099 abstract "The objective of this work was to investigate the applicability of instrumental physical methods for chemical analysis of the combustion products of a solid fuel ramjet and to find out the advantages and disadvantages of the different techniques. The measurements were done using a solid fuel ramjet test facility. Vitiated hot air was used for combustion of a solid fuel grain consisting of HTPB and boron. Samples of the combustion products were taken by a water-cooled probe which was driven into the afterburning chamber. The collected material was analysed by wet chemical analysis , subsequently subjected to analysis by Auger Electron Spectroscopy (AES), X-ray Photoelectron Spectroscopy (XPS), and X-ray Dfiaction (XRD). Detailed spectra including Our investigations show that the boron content is increasing with increasing depth whereas the boron oxide content is decreasing. X-ray diffraction is the method providing the most details. Since it covers the whole volume of the sample it is the best method for determining combustion efficiencies if it is applied quantitatively. With AES it should be possible to do single particle analysis , but in our case this was not possible because the boron particles in the fuel pro- duction had a size of 1 micron. Another conclusion from our results is that the main combustion products are always unburned boron and boron oxide respectively boron acids. Boron carbides and boron nitride are by-products. .-' depth profiles were obtained." @default.
- W2091128099 created "2016-06-24" @default.
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- W2091128099 date "1995-07-10" @default.
- W2091128099 modified "2023-09-23" @default.
- W2091128099 title "Instrumental diagnostics of solid fuel ramjet combustor reaction products containing boron" @default.
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- W2091128099 doi "https://doi.org/10.2514/6.1995-3107" @default.
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