dchip95/diw_rheology

---
language:
- en
license: other
task_categories:
- tabular-classification
- tabular-regression
pretty_name: DIW Rheology Database
size_categories:
- n<1K
tags:
- chemistry
dataset_info:
features:
- name: author
dtype: large_string
- name: year
dtype: int64
- name: journal
dtype: large_string
- name: ink_solid_phase
dtype: large_string
- name: shear_thinning_index
dtype: float64
- name: consistency_index
dtype: float64
- name: static_yield_stress
dtype: float64
- name: storage_modulus
dtype: float64
- name: loss_modulus
dtype: float64
- name: is_printable
dtype: int64
splits:
- name: train
num_bytes: 35492
num_examples: 311
download_size: 13083
dataset_size: 35492
configs:
- config_name: default
data_files:
- split: train
path: data/train-*
---

# DIW Rheology Database

## Dataset Summary

The **DIW Rheology Database** is a curated tabular dataset of rheological parameters for inks used in **Direct Ink Writing (DIW)**. The dataset was assembled from literature collected during the author's PhD research and is intended to support analysis of relationships between rheology and printability in yield-stress fluids.

This database is a **work in progress** and will continue to expand as additional literature is reviewed and incorporated.

The present version focuses on rheological quantities associated with the **Herschel-Bulkley model**, together with bibliographic metadata, material descriptors, and a binary printability label.

Potential uses include exploratory analysis, literature comparison, printability modeling, and broader materials informatics workflows for extrusion-based additive manufacturing.

## Dataset Structure

The dataset is distributed as a single CSV file.

### Data Instances

Each row corresponds to a literature-derived ink formulation or experimental condition.

### Number of Rows

311

## Data Fields

- `author`
First author associated with the literature source.
**Type:** string

- `year`
Publication year of the source.
**Type:** integer

- `journal`
Journal or publication venue.
**Type:** string

- `ink_solid_phase`
Description of the primary solid phase in the ink.
**Type:** string

- `shear_thinning_index`
Herschel-Bulkley flow behavior index, commonly denoted `n`.
**Type:** float
**Units:** dimensionless

- `consistency_index`
Herschel-Bulkley consistency index, commonly denoted `K`.
**Type:** float
**Units:** typically `Pa·s^n`

- `static_yield_stress`
Static yield stress of the ink.
**Type:** float
**Units:** Pa

- `storage_modulus`
Storage modulus of the ink.
**Type:** float
**Units:** Pa

- `loss_modulus`
Loss modulus of the ink.
**Type:** float
**Units:** Pa

- `is_printable`
Binary indicator for whether the formulation was printable under the reported conditions.
**Type:** integer
**Values:**
- `1` = printable
- `0` = not printable

## Data Types and Units

This dataset contains bibliographic, categorical, numerical, and binary fields.

### Bibliographic / Descriptive Fields
- `author`: string
- `year`: integer
- `journal`: string
- `ink_solid_phase`: string

### Rheological Fields
- `shear_thinning_index`: float, dimensionless
- `consistency_index`: float, typically `Pa·s^n`
- `static_yield_stress`: float, `Pa`
- `storage_modulus`: float, `Pa`
- `loss_modulus`: float, `Pa`

### Label Field
- `is_printable`: binary integer (`0` or `1`)

## Notes and Limitations

This dataset is literature-derived and should be interpreted with care. Reported rheological values may depend on test protocol, rheometer geometry, fitting approach, sample preparation, and printing conditions. Likewise, printability in DIW is context-dependent and may vary with nozzle geometry, extrusion pressure, print speed, layer height, and other process parameters.

The Herschel-Bulkley consistency index is typically interpreted in units of `Pa·s^n`, but users should verify unit conventions if combining this dataset with other rheology datasets.

Because this database is a work in progress, future versions may include additional records, expanded material descriptors, and revised field definitions.

## Intended Uses

This dataset may be useful for:

- exploring rheological trends in DIW inks
- benchmarking printable and non-printable formulations
- building printability classifiers or regressors
- supporting materials informatics research in additive manufacturing

## Further Reading

For those interested in learning more about 3D printing, Direct Ink Writing, and designing yield stress fluids, please visit the following references:

- Cipollone, "Direct Ink Writing Printability – Ashby-like Plots for Guided Design" (2022). Graduate Theses. 11470.
- Nelson et al. "Design of yield-stress fluids: a rheology-to-structure inverse problem" (2017). Soft Matter, 13, 7578-7594
- Cipollone et al. "Coaxial Ceramic Direct Ink Writing" ACS Applied Materials & Interfaces (2022) 14, 24897-24907
- Saadi et al. "Direct Ink Writing: A 3D Printing Technology for Diverse Materials" (2022) Advanced Materials.

## Citation

If you use this dataset, please cite the associated thesis and relevant source publications where appropriate.

## Acknowledgments

This dataset was assembled from literature sources as part of ongoing research on Direct Ink Writing, rheology, and printable yield-stress fluids.