Japanese Journal of Applied Physics · 1987 · 33 citations · 8 references
Natural SciencesChemistryMaterials ScienceInorganic ChemistryPhase TransformationsThermal AnalysisCrystal ChemistryCrystal GrowthCrystal LatticeCrystalline MaterialsCrystallization AnalysisCrystallization ProcessesCrystallizationCrystallization BehaviorIncongruent MeltingMeltingPeritectic DecompositionPeritectic EquilibriaPeritectic Growth MechanismsPeritectic Solidification
Melting and crystallization behavior of a high- T c compound Ba 2 YCu 3 O x was investigated by microstructural observation, and compositional, thermal and X-ray analyses. Because of an incongruent melting, Ba 2 YCu 3 O x decomposes into a solid phase, Ba 2 YCuO 5 , and a liquid at 1266 K in air. Ba 2 YCu 3 O x crystals are formed around the primary crystals, BaY 2 CuO 5 , by a peritectic reaction on cooling from 1473 K in air.
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