期刊
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
卷 130, 期 6, 页码 S1-S6出版社
CERAMIC SOC JAPAN-NIPPON SERAMIKKUSU KYOKAI
DOI: 10.2109/jcersj2.22021
关键词
In flight melting; Oxygen; Glass; SEM-EDS; Soft X-ray XANES
This study observed and analyzed the glass produced by the in-flight-melting method using multiple techniques. It discovered specific oxygen chemical states and unique fiber structures that differ from traditional glass and natural silicate glass.
The special oxygen gas burner for the in-flight-melting method can produce glass within one second. The nature and the theoretical bases of this glass were not studied well. Then we observed this glass using a Raman spectra method, a soft X-ray absorption fine structure (XAFS) method, and a scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS) method. We found the specific oxygen chemical states with a large pre-edge structure at around 533 similar to 534 eV in oxygen K-edge X-ray Absorption Near Edge Structure (XANES) spectra which were made in the 1000 kcal/kg-glass specific energy making process and collected at the most upper-stream in the in-flight path. This pre-edge shape of oxygen was much different from the soda-lime glass made with the crucible/tank furnace nor natural silicate glass (tectosilicates, phyllosilicates, nesosilicates). We also found the needle-like fibers with from a few tens of nanometer to sub-micron in diameter and with more than a few tens of micrometer length which were produced in the 1000 or 1200 kcal/kg-glass specific energy making process and collected at the most upper-stream in the in-flight path. (c) 2022 The Ceramic Society of Japan. All rights reserved.
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