title: Preparation of multilayered materials in cross-section for in situ TEM tensile deformation studies.
abstract: The success of in situ transmission electron microscopy experimentation is often dictated by proper specimen preparation and sample design procedures. We have developed a novel technique permitting the production of tensile specimens of multilayered films in cross-section for in situ deformation studies. Of primary, importance in the development of this technique is the production of an electron transparent micro-gauge section. This micro-gauge section predetermines the position at which plastic deformation, crack nucleation and growth, and failure are observed. In short, we report in detail, a unique combination of specimen preparation procedural steps and the design of a multilayer foil sample. The ability of these procedures to facilitate the success of in situ TEM tensile studies of layered materials in cross-section is demonstrated using a Cu-Zr multilayer foil.
authors.affiliation: Chemistry and Materials Science Department, Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
authors.forename: M A
authors.initials: MA
authors.lastname: Wall
authors.forename: T W
authors.initials: TW
authors.lastname: Barbee
authors.forename: T P
authors.initials: TP
authors.lastname: Weihs
mesh_terms: D003300:Copper; D004595:Electroplating; D008422:Materials Testing; D008669:Metallurgy; D008854:Microscopy, Electron / Q000379:methods*; D008855:Microscopy, Electron, Scanning; D013718:Tensile Strength; D015040:Zirconium
chemical_list: D003300:Copper; D015040:Zirconium