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Synthesis and optical properties of Yb0.6Y1.4O3 transparent ceramics
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriell miljö- och processteknik.ORCID-id: 0000-0003-4582-0902
Claude Bernard/Lyon1 University.
Claude Bernard/Lyon1 University.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap.ORCID-id: 0000-0002-2286-5588
2008 (engelsk)Inngår i: Journal of Alloys and Compounds, ISSN 0925-8388, E-ISSN 1873-4669, Vol. 464, nr 1-2, s. 407-411Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Transparent yttrium oxide ceramics doped with 30 at.% ytterbium were successfully produced by a combination of pre-sintering and hot isostatic pressing. The influence on the final transparency of different densification states and porosity configurations obtained by varying pre-sintering conditions were investigated by optical and electron microscopy. Our results show that densification prior to the final stage of sintering is necessary to limit final porosity. Samples showing open porosity were found to lead to pore entrapment because of the diffusion of argon inside the glass capsule during hot isostatic pressing. Transmittance measurements showed that the valence charge of the ytterbium ions was 3+ at the end of the process, indicating no effect of reduction when pre-sintering in vacuum was employed.

sted, utgiver, år, opplag, sider
2008. Vol. 464, nr 1-2, s. 407-411
HSV kategori
Forskningsprogram
Kemisk teknologi; Materialteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-10637DOI: 10.1016/j.jallcom.2007.10.005ISI: 000259715300078Scopus ID: 2-s2.0-49749152762Lokal ID: 9786e2f0-8653-11dd-8275-000ea68e967bOAI: oai:DiVA.org:ltu-10637DiVA, id: diva2:983582
Merknad
Validerad; 2008; 20080919 (ysko)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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