Japanese Journal of Applied Physics · 1988 · 63 citations · 8 references
Natural SciencesChemistryMaterials ScienceMaterials CharacterizationMaterials ChemistryPhysical ChemistryAmorphous SolidsCrystal ChemistryInorganic MaterialsSolid-state ReactionsAmorphous AlloysChemical Interaction EffectsInorganic Substrate MaterialsOxide Solid-state ChemistryReactivitySubstrate MaterialsX-ray Diffraction Analysis
The solid phase chemical reaction between Ba 2 YCu 3 O 7-δ (BYCO) and substrate materials has been investigated quantitatively by X-ray diffraction and ac-susceptibility measurements. The twelve substrate materials examined can be classified into four groups in the order of chemical reactivity with BYCO:SrTiO 3 , MgO<YSZ, Stainless steel (SUS-316), ZrO 2 , TiO 2 , Al 2 O 3 <Si, amorphous SiO 2 <WC, Cr 2 O 3 , CaF 2 . X-ray analysis indicates that Ba in BYCO is primarily responsible for the reactions with substrate materials. The electronegativity of a component in the substrate has a qualitative correlation with the reactivity of BYCO toward the substrate materials.
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