Silver and platinum diffusion in alumina single crystals

• Published in: Acta materialia Vol. 49; no. 4; pp. 637 - 644
• Main Authors: Gontier-Moya, E.G, Bernardini, J, Moya, F
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 23.02.2001; Elsevier Science
• Subjects: Alumina; Applied sciences; Chemical interdiffusion; diffusion barriers; Condensed matter: structure, mechanical and thermal properties; Diffusion; Diffusion in solids; Exact sciences and technology; Lattice defects; Metals. Metallurgy; Physics; Secondary ion mass spectroscopy (SIMS); Transport properties of condensed matter (nonelectronic); Lattice defects; Diffusion; Alumina; Secondary ion mass spectroscopy (SIMS); Diffusion profile; Silver; Monocrystals; Tracer techniques; Temperature effects; Platinum; SIMS; Diffusion coefficient; Experimental study

Silver and platinum diffusion in α-alumina single crystals have been investigated using SIMS technique in 800–1150°C and 900–1200°C temperature ranges. Previous radiotracer measurements yielded higher diffusion coefficients of silver than those presented here. This difference is attributed to the re...