Ion mixing of near surface layers in AuCu, CuMo systems irradiated by HPIB

• Published in: Physics letters. A 1988-08, Vol.131 (1), p.73-77
• Main Authors: Chistjakov, S.A., Gagarin, A.M., Koishibaev, R.G., Krjuchkov, Yu.Yu, Kuzminikh, V.A., Milutin, V.M., Pirogov, V.A., Petrov, V.A., Pogrebnjak, A.D., Plotnikov, S.V., Remnev, G.E., Rusin, Yu.G., Janovskii, V.P.
• Format: Article
• Language: English
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Materials science; Metals, semimetals and alloys; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Other interactions of matter with particles and radiation; Physics; Solid surfaces and solid-solid interfaces; Specific materials; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties)
• ISSN: 0375-9601; 1873-2429
• DOI: 10.1016/0375-9601(88)90639-1

New results on mixing in single layered metal structures exposed to nanosecond high power ion beams (HPIB) are presented. Au/Cu and Cu/Mo structures have been investigated using RBS, SIMS, AES and transmission electron microscopy. It is shown that HPIB-induced mixing was initiated at the substrate-deposited-layer interface in contrast to laser melting which starts at the surface. Cu 3Au superstructure phase, CuAu metastable state and an amorphous structure have been revealed. Cu/Mo structures which cannot produce equilibrium alloys and compounds and strongly differ in their thermophysical properties, can be mixed in the gaseous and liquid phases by three HPIB pulses with 0.95 J/cm 2 energy density.