# Granule size and shape data from SOPAT for publication "Impact of Feed Rate and Binder Concentration on the Morphology of Spray Dried Alumina-Polymer Nano-composites"

## SOPAT Equipment
Measurements were performed at the Institute of Mechanical Process Engineering and Mineral Processing, TU Bergakademie Freiberg
- Device: SOPAT PL (SOPAT GmbH, Berlin, Germany)

## Sample Material
The dataset includes calculated size and shape of granules from the following sample material:
- *Spray dried powder of alumina and polyvinylpyrrolidone-30 binder*
  - Granule size: 2 – 15 µm 

## The maximum feret diameter and aspect ratio were calculated from SOPAT images using Python programming (https://gitlab.hrz.tu-chemnitz.de/rm19lohi-at-tu-freiberg.de/2d-image-processing)

## Folder and Data Structure
This dataset contains the calculated maximum feret diameter and aspect ratio from the SOPAT images of the granules formed during spray drying.

**Folder Naming Convention:**
- The folder name structure is as follows: \`datafiles\`
  - \`datafiles\particle_size_shape_data_[Measurement_ID].json` data file containing the calculated maximum feret diameter and aspect ratio from SOPAT images of granules.
  - [Measurement_ID] indicates the ID of the spray drying parameters used. For example, "F1", "F2", "F3" and "F4" refer to feed rate for the 4 experiments: 11, 14, 17, 20 mL/min, respectively. "B1", "B2", "B3", "B4" refer to binder concentration for the experiments: 0.4, 0.8, 1.6, 3.2 w/w%, respectively.
  - So, "F1B1" means the experiment was done at feed rate F1 and binder concentration B1.
  - Each JSON file has three columns: label, max_feret, aspect_ratio, which are self-explanatory.