Substrate Roughness Effects on Alumina-Hydroxyapatite Coating Adhesion

Achmad Fadjar Maulana Firdaus's dataset contains experimental results on the influence of abrasive sandblasting mesh size on the morphology and mechanical properties of Al2O3/n-HAp coatings on stainless steel. The study compares three substrate preparation conditions (16–30, 30–60, and 60–80 mesh) and includes measurements of adhesion strength and failure area. The data was published on the figshare platform in April 2026.

Use Cases

• Correlate substrate abrasive mesh size (16–30, 30–60, 60–80) with measured adhesion strength (e.g., 5.56±0.06 MPa) to identify optimal preparation parameters.
• Analyze the relationship between surface roughness and coating failure area percentage (e.g., 19.39%) to understand mechanical interlocking and stability.
• Investigate how coarser surfaces influence phase segregation and grain growth in the coating morphology, as described in the study.
• Model the trade-off between mechanical reliability and porous architecture for bioactivity based on the performance metrics of the intermediate 30–60 mesh specimen.

Strengths

• Dataset includes quantitative adhesion strength measurements with reported uncertainty (e.g., 5.56±0.06 MPa).
• Compares three distinct experimental conditions (three abrasive mesh sizes) for substrate preparation.
• Contains specific morphological analysis findings, such as failure area percentages (e.g., 19.39%).

Limitations

• The total number of experimental samples or data rows is not specified.
• The dataset scope is limited to one specific coating system (Al2O3/n-HAp on SS316L) and one deposition method (flame spray).
• Geographic or organizational context for the research is not provided.

Provenance

Source

figshare, authored by Achmad Fadjar Maulana Firdaus.

Collection Method

Experimental data from flame spray coating deposition and subsequent mechanical (pull-off) and morphological testing.

Freshness

Last updated in April 2026, indicating recent publication.