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Can I read The Ratcheting of Compressed Thermally Grown Thin Films on Ductile Substrates on EtoBox?
The Ratcheting of Compressed Thermally Grown Thin Films on Ductile Substrates by M.Y. He; A.G. Evans; J.W. Hutchinson is a Engineering article available to read on EtoBox.
What is The Ratcheting of Compressed Thermally Grown Thin Films on Ductile Substrates about?
AbstractÐAn analysis of the displacements experienced by undulating thermally grown thin ®lms upon thermal cycling has been presented. The ®lm has been assigned a thermal expansion coecient that causes it to be compressed upon cooling. It has also been allowed to thicken at high temperature by oxidation of the substrate. It is shown that, in some circumstances, ratcheting occurs, wherein the undulation amplitude, a, increases with each thermal cycle. When such a response happens, undesirable cyclic failure modes are induced. The analysis reveals that there is a critical undulation amplitude, a c , below which ratcheting does not occur. This critical size is related to the expansion mis®t, the substrate yield strength and the growth strain in the ®lm per cycle. Connections between these variables and a c are derived.
Who reads The Ratcheting of Compressed Thermally Grown Thin Films on Ductile Substrates?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- M.Y. He; A.G. Evans; J.W. Hutchinson
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 1359-6454)
- Published
- 2000
- Language
- EN
- Field
- Engineering (Physical Sciences)