Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Michael Rozumek"'
Autor:
Klaus Künstler, Fritz Aldinger, G. Tomandl, Heike Schluckwerder, Peter Majewski, Michael Rozumek
Publikováno v:
Journal of the American Ceramic Society. 87:1795-1798
Ceramics of the melilite-type compound La1+xSr1−xGa3O7−δ were prepared by conventional ceramic processing. Samples prepared represented the entire homogeneity region of the phase (i.e., x=−0.15 to 0.60). Electrochemical characterization under
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8879a6c66a717bd1125766b27c00935
https://doi.org/10.1111/j.1551-2916.2004.01795.x
https://doi.org/10.1111/j.1551-2916.2004.01795.x
Publikováno v:
Journal of the American Ceramic Society. 87:656-661
The metastable crystal structure of strontium- and magnesium-substituted LaGaO3 (LSGM) was studied at room and intermediate temperatures using powder X-ray diffractometry and Rietveld refinement analysis. With increased strontium and magnesium conten
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56841ebfbf2890a17b9e4baa2147fc96
https://doi.org/10.1111/j.1551-2916.2004.00656.x
https://doi.org/10.1111/j.1551-2916.2004.00656.x
Publikováno v:
Journal of the American Ceramic Society. 87:662-669
Ceramic samples of the melilite-type La 1+x Sr 1-x Ga 3 O 7-δ (x = -0.15 to 0.60) compound were prepared by conventional ceramic processing. Sintering characteristics and microstructural evolution were studied. A phase diagram study was performed to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f990ab2473960f09624676fe8117898
https://doi.org/10.1111/j.1551-2916.2004.00662.x
https://doi.org/10.1111/j.1551-2916.2004.00662.x
Publikováno v:
Journal of the American Ceramic Society. 86:1940-1946
Phase stability studies were performed within the quasi-ternary system LaGaO3-SrGaO2.5-“LaMgO2.5”. Emphasis was cast on the temperature dependence of the homogeneity region of La1−xSrxGa1−yMgyO3−δ perovskite solid solutions. Isothermal sec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ec4dae8459ac50d112ad138e6d80208
https://doi.org/10.1111/j.1151-2916.2003.tb03585.x
https://doi.org/10.1111/j.1151-2916.2003.tb03585.x
Publikováno v:
Materialwissenschaft und Werkstofftechnik. 33:348-354
The reactions between Sr and Mg substituted LaGaO 3 , Sr substituted LaMnO 3 , Ca substituted LaCrO 3 , and Ni annealed at 650 and 1000°C for up to 1000 h have been studied. The experiments show that solid state reactions between the original phases
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83571c5c1ea567e3b23c21aa9a3421c2
https://doi.org/10.1002/1521-4052(200206)33:6<348::aid-mawe348>3.0.co
https://doi.org/10.1002/1521-4052(200206)33:6<348::aid-mawe348>3.0.co
Publikováno v:
Journal of Electroceramics. 8:65-73
The preparation of La0.8Sr0.2Ga0.8Mg0.2O3 (LSGM) powders by the mixed oxide route requires significantly longer annealing times of about 60 h compared to the combustion synthesis and Pechini method which requires less than 6 h. In comparison to the m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db424c499dcf9d2544ed67aa205b8124
https://doi.org/10.1023/a:1015507520661
https://doi.org/10.1023/a:1015507520661
Publikováno v:
Journal of Materials Research. 15:1161-1166
The quasi binary systems LaMnO3–SrMnO3 and LaMnO3–CaMnO3 were studied. Both systems show a miscibility gap at intermediate La:Sr and La:Ca ratios below about 1400 °C in air. This phenomenon causes the decomposition of single-phase (La,Sr)MnO3−
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0a88a67897ac744c1419d3ce4d4b6c0
https://doi.org/10.1557/jmr.2000.0164
https://doi.org/10.1557/jmr.2000.0164
Publikováno v:
Synthesis, Properties, and Crystal Chemistry of Perovskite-Based Materials
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::947c71ef38e8bd623f891ba5324bb0b5
https://doi.org/10.1002/9781118408476.ch12
https://doi.org/10.1002/9781118408476.ch12
Publikováno v:
ChemInform. 32
The ternary systems La2O3–SrO–Ga2O3, La2O3–MgO–Ga2O3, and SrO–MgO–Ga2O3 were studied at 1400°C in air, with emphasis on LaGaO3. The compound exhibited a small solid solubility of strontium substituting for lanthanum and also of magnesium
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a86398510dcee68d9979c5922c3edc1
https://doi.org/10.1002/chin.200134017
https://doi.org/10.1002/chin.200134017
Publikováno v:
ChemInform. 33
The ternary systems La 2 O 3 –SrO–Ga 2 O 3 , La 2 O 3 –MgO–Ga 2 O 3 , and the quaternary system La 2 O 3 –SrO–Ga 2 O 3 –MgO were studied at 1350–1400°C in air with emphasis on the solid solubility of Sr and Mg in LaGaO 3 . In both te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::afe6133057b961d3ad45187b855c401a
https://doi.org/10.1002/chin.200224022
https://doi.org/10.1002/chin.200224022