This readme file was generated on 2025-JULY-30 by Yong Li



GENERAL INFORMATION

Title of Dataset: Datasets for structural and mechanical properties of nanoporous networks from FIB reconstruction

DOI: 10.15480/882.15230

Author
Name: Yong Li
ORCID: 0000-0003-1472-9567
Institution: Institute of Hydrogen Technology, Hybrid Materials Systems, Helmholtz-Zentrum Hereon, Geesthacht, Germany 
Email: yong.li@hereon.de

Author
Name: Kaixiong Hu
ORCID: 0000-0001-9904-6137
Institution: School of Transportation and Logistics Engineering, Wuhan University of Technology, Hubei, China 
Email: kaixiong.hu@whut.edu.cn

Author
Name: Erica T. Lilleodden
ORCID: 0000-0002-4014-0986
Institution: Fraunhofer Institute for Microstructure of Materials and Systems, Halle, Germany
Email: erica.lilleodden@imws.fraunhofer.de

Author
Name: Norbert Huber
ORCID: 0000-0002-4252-9207
Institution: Bundesanstalt für Materialforschung und -prüfung, Berlin, Germany
Institution: Institute of Materials Physics and Technology, Hamburg University of Technology, Hamburg, Germany
Email: n.huber@tuhh.de

Information about funding sources that supported the collection of the data: 
This work was supported by Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) through Project Number 192346071 (SFB 986) and through the Cluster of Excellence EXC3120 BlueMat: Water-Driven Materials


SHARING/ACCESS INFORMATION

Licenses placed on the data: CC BY 4.0

Links to publications that cite or use the data: this dataset is a supplement to a dataset paper



DATA & FILE OVERVIEW

File List: 
	This dataset includes 3D tomographic reconstruction image files, volume mesh files for finite element simulations, and data on the structural and mechanical properties of nanoporous gold (NPG) structures. It serves as a supplement to a dataset paper, with the corresponding DOI provided in the “Related Identifiers” section. Detailed descriptions of the data, as well as the procedures for their preparation and curation, are presented in that paper.
	
	There are five sets of NPG samples, each with a different ligament size: 20nm, 50nm, 200nm, 350nm, and 400nm. For each set, six structures were generated from different regions of the same sample.
	
	For example, the sample s20nm_l600nm_1, the archived files are as follows:
		1, 3D tomographic image: s20nm_l600nm_1.tif
		2, Volume mesh file: s20nm_l600nm_1.inp
		3, Stress–strain data: s20nm_l600nm_1.stress_strain.txt
		4, Poisson’s ratio data: s20nm_l600nm_1.poisson_ratio.txt
	In the sample name s20nm_l600nm_1: “s” stands for "sample", “20nm” indicates a ligament size of ~20 nm, “l600nm” denotes the sample edge length of 600 nm, and “1” refers to the first 3D reconstruction region within this NPG sample.




METHODOLOGICAL INFORMATION

Description of material/methods/softwares used for collection/generation of data: 
	Comprehensive descriptions are provided in the dataset paper. Here is a brief summary:
		Material: nanoporous gold, method: dealloying and thermal annealing;
		3D tomographic reconstruction: Focused Ion Beam/Scanning Electron Microscopy (FIB/SEM), detailed in Philosophical Magazine 2016 96 (32-34), 3322-3335;
		Volume meshing: Simpleware (Synopsys, Inc. version Q-2020.06-1);
		Finite element simulation: Abaqus (Dassault Systems Simulia Corp. version 2023)
		Topological connectivity: "Betti number" -- CHomP (version 1.00), "Skeleton" -- BoneJ plugin for FIJI (version 6.5), "Fast Fourier Transform  (FFT)" -- FFTW (version 3.3.8) 
		Visualization: Ovito (version 3.0.0)