Modifying La–Mg–Ni alloy thin film microstructure using combinatorial methods
| Autor: | C. H. Olk, Haddad Daad B |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Materials science
Mechanical Engineering Alloy Metals and Alloys Nucleation engineering.material Microstructure Nanocrystalline material Amorphous solid chemistry.chemical_compound Crystallography chemistry Chemical engineering Mechanics of Materials Impurity Materials Chemistry engineering Thin film AFm phase |
| Zdroj: | Journal of Alloys and Compounds. 417:235-240 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2005.08.082 |
| Popis: | We have grown an array of discrete La–Mg–Ni thin films using combinatorial methods to modify the film microstructure by fine-tuning the composition. This method for creation of nanocrystalline/amorphous microstructure is significantly different from the usual energetic mechanical methods. Electron probe microanalysis measurements showed that our films have a wide range of compositions. The structures and surfaces of the different alloy films were studied using X-ray diffraction (XRD) and atomic force microscopy (AFM). XRD measurements revealed that the Mg-rich alloys consist of a main phase of (La, Mg)Ni3 with the hexagonal PuNi3-type structure and minor impurity phases of LaNi5. However, XRD of the La-rich alloys showed the formation of amorphous and nanocrystalline phases. AFM phase images showed different phases corresponding to different nucleation processes for the Mg-rich and La-rich alloys. |
| Databáze: | OpenAIRE |
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