Investigation of the primary crystallization of Ni-17 at.% P alloy by ASAXS

• Published in: Journal of applied crystallography Vol. 38; no. 5; pp. 787 - 794
• Main Authors: Tatchev, D., Goerigk, G., Valova, E., Dille, J., Kranold, R., Armyanov, S., Delplancke, J.-L.
• Format: Journal Article
• Language: English
• Published: 5 Abbey Square, Chester, Cheshire CH1 2HU, England Munksgaard International Publishers 01.10.2005; Blackwell; Blackwell Publishing Ltd
• Subjects: amorphous alloy; anomalous small-angle X-ray scattering; Condensed matter: structure, mechanical and thermal properties; Crystalline state (including molecular motions in solids); Exact sciences and technology; nucleation and growth; particle composition; particle size distribution; Physics; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; Theory of crystal structure, crystal symmetry; calculations and modeling; Particle size; Nickel alloys; Crystallization; Electroless deposition; Composition effect; Amorphous alloy; Amorphous state; Crystal symmetry; Particle size distribution; Unit cell; Eutectics; Chemical composition; Transition element alloys; Crystal structure
• ISSN: 1600-5767; 0021-8898; 1600-5767
• DOI: 10.1107/S0021889805024489

Primary crystallization of Ni(P) particles in hypoeutectic Ni–P amorphous alloy obtained by electroless deposition has been investigated with ASAXS. The particle size distribution, the size dependence of the particle composition and the amorphous matrix composition were found simultaneously. The size distribution consists of a peak at particle radius of ∼1 nm and a tail spanning from ∼2 to 15 nm. The composition of the particles of the peak changes from ∼14 to ∼2 at.% P as their radius grows from 0.7 to about 3 nm. The particles in the tail of the size distribution (2–15 nm) have nearly constant P content in the range of 0–2 at.%. The matrix composition tends to the eutectic one at the end of the primary crystallization process.