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Plasma‐Sprayed Strontium‐ and Magnesium‐Doped Lanthanum Gallate Ceramics
Author(s) -
Majewski Peter,
Maldener Thorsten
Publication year - 2010
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2010.02595.x
Subject(s) - materials science , microstructure , ceramic , lanthanum , strontium , magnesium , amorphous solid , doping , chemical composition , gallate , evaporation , plasma , phase (matter) , analytical chemistry (journal) , metallurgy , mineralogy , chemical engineering , nuclear chemistry , inorganic chemistry , crystallography , optoelectronics , chemistry , physics , organic chemistry , chromatography , quantum mechanics , nuclear physics , engineering , thermodynamics
La 1− x Sr x Ga 1− y Mg y O 3− d (LSGM) powder of different composition and a grain size of about 5–10 μm were plasma sprayed on Ti substrates in order to study the effect of plasma spraying of LSGM on the microstructure and chemical composition of the resulting ceramic LSGM layers. As‐sprayed LSGM layers contain a considerable amount of amorphous phase besides LSGM grains, whereas postannealed layers mainly consist of LSGM besides very small amounts of second phases. Evaporation of mainly Ga was observed, which considerably altered the chemical composition of the layers.