Stone impact damage to automotive paint finishes: An introduction to impact physics and impact induced corrosion

pH-Responsive Graphene Oxide-Based 2D/3D Composite for Enhancing Anti-Corrosion Properties of Epoxy Coating

“…The equation reported by Ramamurthy was used to calculate the coating delamination index (D) to assess the peeling degree at the coating/substrate interface [ 54 ]. Equation (1) is as follows.…”

pH-Responsive Graphene Oxide-Based 2D/3D Composite for Enhancing Anti-Corrosion Properties of Epoxy Coating

“…The equation reported by Ramamurthy was used to calculate the coating delamination index (D) to assess the peeling degree at the coating/substrate interface [ 54 ]. Equation (1) is as follows.…”

Sequentially Bridged Graphene Sheets for High‐Performance Anticorrosion

“…Coating deterioration process can be quantitatively evaluated by calculating the coating damage function (CDF, reflects the coating damage tendency) and coating damage index (CDI, reflects the coating damage degree) from the measured Z 0.01Hz and phase angle (for detailed information, see Supporting Information Appendix and Figure S10 and Table S3) after aging for 60 days. [ 37–39 ] Regardless of the coatings, the CDF and CDI values increase with the time elapses. The lowest CDF (34.74%) and CDI (2.3%) values can be observed for the B–G–WEP experienced 60 days immersion time, which declined by 2.8‐ and 10.7‐folds compared to the pure WEP coating, respectively.…”

Preparation and characterisation of phenyl silicone‐acrylic polyol coatings

“…When the indenter strikes the surface of the coating, a shock wave will be produced. This shock wave penetrates and induces stress to the coating (Ramamurthy et al , 1994). The induced stress may set the coating molecules to vibrate.…”

“…All other samples showed very little loss of coating, but a region of radial cracks was observed around the impact sites. These cracks presumably were caused by deflection of the panel on impact with 1 kg load (Ramamurthy et al , 1994).…”

pH-Responsive Graphene Oxide-Based 2D/3D Composite for Enhancing Anti-Corrosion Properties of Epoxy Coating

“…The equation reported by Ramamurthy was used to calculate the coating delamination index (D) to assess the peeling degree at the coating/substrate interface [ 54 ]. Equation (1) is as follows.…”

Sequentially Bridged Graphene Sheets for High‐Performance Anticorrosion

“…Coating deterioration process can be quantitatively evaluated by calculating the coating damage function (CDF, reflects the coating damage tendency) and coating damage index (CDI, reflects the coating damage degree) from the measured Z 0.01Hz and phase angle (for detailed information, see Supporting Information Appendix and Figure S10 and Table S3) after aging for 60 days. [ 37–39 ] Regardless of the coatings, the CDF and CDI values increase with the time elapses. The lowest CDF (34.74%) and CDI (2.3%) values can be observed for the B–G–WEP experienced 60 days immersion time, which declined by 2.8‐ and 10.7‐folds compared to the pure WEP coating, respectively.…”

Preparation and characterisation of phenyl silicone‐acrylic polyol coatings

“…When the indenter strikes the surface of the coating, a shock wave will be produced. This shock wave penetrates and induces stress to the coating (Ramamurthy et al , 1994). The induced stress may set the coating molecules to vibrate.…”

“…All other samples showed very little loss of coating, but a region of radial cracks was observed around the impact sites. These cracks presumably were caused by deflection of the panel on impact with 1 kg load (Ramamurthy et al , 1994).…”

pH-Responsive Graphene Oxide-Based 2D/3D Composite for Enhancing Anti-Corrosion Properties of Epoxy Coating

“…The equation reported by Ramamurthy was used to calculate the coating delamination index (D) to assess the peeling degree at the coating/substrate interface [ 54 ]. Equation (1) is as follows.…”

Sequentially Bridged Graphene Sheets for High‐Performance Anticorrosion

“…Coating deterioration process can be quantitatively evaluated by calculating the coating damage function (CDF, reflects the coating damage tendency) and coating damage index (CDI, reflects the coating damage degree) from the measured Z 0.01Hz and phase angle (for detailed information, see Supporting Information Appendix and Figure S10 and Table S3) after aging for 60 days. [ 37–39 ] Regardless of the coatings, the CDF and CDI values increase with the time elapses. The lowest CDF (34.74%) and CDI (2.3%) values can be observed for the B–G–WEP experienced 60 days immersion time, which declined by 2.8‐ and 10.7‐folds compared to the pure WEP coating, respectively.…”

Preparation and characterisation of phenyl silicone‐acrylic polyol coatings

“…When the indenter strikes the surface of the coating, a shock wave will be produced. This shock wave penetrates and induces stress to the coating (Ramamurthy et al , 1994). The induced stress may set the coating molecules to vibrate.…”

“…All other samples showed very little loss of coating, but a region of radial cracks was observed around the impact sites. These cracks presumably were caused by deflection of the panel on impact with 1 kg load (Ramamurthy et al , 1994).…”