Title :
Exploring the Next Neighbourhood Relationship in Metallic Glasses utilizing the Atom Probe Tomography
Author :
Shariq, A. ; Al-Kassab, T. ; Kirchheim, R. ; Safarik, D.J. ; Schwarz, R.B.
Author_Institution :
Institut fur Materialphysik, Gottingen
Abstract :
The chemical short range order in rod of Pd40.5Cu40.5P19 bulk amorphous alloy is investigated using the next neighborhood evaluation (NNE), an algorithm developed to extract information about next neighborhood from 3D tomographic atom probe data. NNE algorithm is processed for 10times10times10 nm3 volume chosen from the centre of the analyzed volume of cast sample. Selecting only Cu-Cu elemental correlation, histograms are drawn for the first five neighbors with distances exhibiting a Gaussian distribution. The algorithm is successfully utilized to elucidate next neighborhood
Keywords :
Gaussian distribution; atom probe field ion microscopy; copper alloys; glass structure; metallic glasses; palladium alloys; phosphorus alloys; short-range order; 3D atom probe tomography; Cu-Cu elemental correlation; Gaussian distribution; Pd40.5Cu40.5P19; chemical short range order; histograms; metallic glass; next neighborhood evaluation; Algorithm design and analysis; Amorphous materials; Chemicals; Copper alloys; Data mining; Gaussian distribution; Glass; Histograms; Probes; Tomography;
Conference_Titel :
Vacuum Nanoelectronics Conference, 2006 and the 2006 50th International Field Emission Symposium., IVNC/IFES 2006. Technical Digest. 19th International
Conference_Location :
Guilin
Print_ISBN :
1-4244-0401-0
DOI :
10.1109/IVNC.2006.335313
