Novel rare earth-bearing ultra-high-temperature ceramics tested in a solar furnace above 2,200 °C in air
| hal.structure.identifier | Laboratoire des Composites Thermostructuraux [LCTS] | |
| dc.contributor.author | REBILLAT, Francis | |
| hal.structure.identifier | Laboratoire des Composites Thermostructuraux [LCTS] | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | ANDRÉANI, Anne-Sophie | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | POULON-QUINTIN, Angeline | |
| dc.date.issued | 2013 | |
| dc.identifier.issn | 0030-770X | |
| dc.description.abstractEn | A novel method for testing ultra-high-temperature ceramics (UHTC) at very high temperature (above to 2,200 °C) in air with an exposure time of several minutes is used. The well-known ZrB2 + SiC material shows a limited temperature of use in an oxidizing environment due to the low stability above 2,000 °C of any silica that is formed. A few new systems without silicon are proposed, starting with the Hf or Zr, C, B and rare earth elements. The choice of rare earths is motivated by the formation of oxides with melting points higher than 2,000 °C. The complex oxide scales formed during oxidation are accurately described, in terms of presence of porosity and gradients of composition. Similarities with the mechanism of oxidation described for ZrB2 + SiC materials are shown. A significantly higher thermal stability of rare-earth oxide containing ceramics compared to silica is highlighted. As a consequence, the protective capacity of the oxide scale is improved. | |
| dc.language.iso | en | |
| dc.publisher | Springer Verlag | |
| dc.subject.en | Solar furnace | |
| dc.subject.en | Dysprosium | |
| dc.subject.en | Oxidation mechanism | |
| dc.title.en | Novel rare earth-bearing ultra-high-temperature ceramics tested in a solar furnace above 2,200 °C in air | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1007/s11085-013-9383-1 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Oxidation of Metals | |
| bordeaux.page | 257-266 | |
| bordeaux.volume | 80 | |
| bordeaux.issue | 3-4 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00867115 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00867115v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Oxidation%20of%20Metals&rft.date=2013&rft.volume=80&rft.issue=3-4&rft.spage=257-266&rft.epage=257-266&rft.eissn=0030-770X&rft.issn=0030-770X&rft.au=REBILLAT,%20Francis&ANDR%C3%89ANI,%20Anne-Sophie&POULON-QUINTIN,%20Angeline&rft.genre=article |
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