NDLI: The Morphologies and Adhesion of Ceramic Films on CLAM Steel Substrates for Nuclear Fusion Applications

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Song, Binbin Wu, Ping Chen, Sen Zhang, Shiping
Copyright Year	2011
Abstract	In the dual-function lithium-lead test blanket module (DFLL-TBM) thin and durable coatings with a large tritium permeation reduction factor (PRF) and high resistivity are usually used to segregate the structural wall from the liquid Li-Pb. Al2O3, Cr2O3, SiC, Er2O3, et al. are considered as the promising functional coating materials for DFLL-TBM. Due to the thermal expansion coefficients and lattice constants of ceramic and metal materials are quite different, the mechanical properties of ceramic coatings on metal substrates can be reduced by poor adhesion. In this study, Al2O3, Cr2O3, SiC, Er2O3 films were fabricated on China low activation martensitic (CLAM) steel substrates by magnetron sputtering. Atomic force microscope (AFM) was used to study the surface morphologies of ceramic films. The adhesion strength of the films, deposited on CLAM steel, was also studied by scratch test. Results indicate that the surface of SiC films is smoother than the others. While the surface morphologies of Al2O3, Cr2O3, Er2O3 films are similar. The critical load of SiC film, with a minimum value, is about 12.0 mN, while the critical load of Al2O3 reaches about 16.4 mN.
Starting Page	47
Ending Page	50
Page Count	4
File Format	PDF
ISBN	9780791854976
DOI	10.1115/IMECE2011-65106
Volume Number	Volume 11: Nano and Micro Materials, Devices and Systems; Microsystems Integration
Conference Proceedings	ASME 2011 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2011-11-11
Publisher Place	Denver, Colorado, USA
Access Restriction	Subscribed
Subject Keyword	Atomic force microscopy Metals Mechanical properties Lithium Ceramics Steel Coatings Adhesion Stress Manganese (metal) Thermal expansion Nuclear fusion Ceramic coatings Electrical resistivity China Sputtering (irradiation)
Content Type	Text
Resource Type	Article

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