Sintering behavior and mechanism of Sr-doped lanthanum chromites with A site excess composition in air

Sintering characteristics and mechanisms of lanthanum strontium chromites, (La 1− x Sr x ) 1+ y CrO 3 (0≤ x≤0.3, 0≤ y≤0.02), in air are discussed in comparison with the results for Ca-doped lanthanum chromites. The sinterability of La 0.9Sr 0.1+ y CrO 3 increased with increasing alkaline earth (AE)...

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Veröffentlicht in:Solid state ionics 1999, Vol.123 (1), p.103-111
Hauptverfasser: Mori, Masashi, Hiei, Yoshiko, Sammes, Nigel M
Format: Artikel
Sprache:eng
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Zusammenfassung:Sintering characteristics and mechanisms of lanthanum strontium chromites, (La 1− x Sr x ) 1+ y CrO 3 (0≤ x≤0.3, 0≤ y≤0.02), in air are discussed in comparison with the results for Ca-doped lanthanum chromites. The sinterability of La 0.9Sr 0.1+ y CrO 3 increased with increasing alkaline earth (AE) content, but was much lower than that of La 0.9Ca 0.1+ y CrO 3. It was found that the ratios of AE to Cr formed a second phase in the sample in the region 0.5< x
ISSN:0167-2738
1872-7689
DOI:10.1016/S0167-2738(99)00097-1