The phrase "altered the surface" is correct and usable in written English.
It can be used in contexts where a change or modification has been made to a surface, such as in art, science, or engineering.
Example: "The artist altered the surface of the canvas to create a unique texture that captivated the audience."
Alternatives: "modified the surface" or "changed the surface."
In this exhibition, I have altered the surface of the walls and caused the architecture to perform in uncanny ways.
The modification process altered the surface morphology and structure of the membrane by forming hydrophilic microspheres on the membrane surface.
Chemical analysis confirms that the PCNs adsorbed to PEMs significantly altered the surface chemistry, indicating significant surface coverage.
Mission scientists selected the southern hemisphere as the landing site in part because it is sheltered from cosmic radiation and solar winds that might have altered the surface from its primordial state.
Moreover, they synthesized metabolites that altered the surface properties of the supernatants derived from cell cultures, a useful property in oil recovery processes.
Adsorbed oxygen in oxidic state which was desorbed above 600 K altered the surface properties of gold and resulted in the decrease of activation energy for oxygen to penetrate beneath the gold surface.
This study investigates whether this engineering work could have sufficiently altered the surface-water circulation to bring about the change in the phytoplankton composition.
They chemically altered the surfaces of 1 to 5 micrometer dots so they would dissolve in water, enabling them to diffuse throughout cells.
Because they alter the surface properties, self-assembled monolayers can be used for a multitude of applications.
The results showed that the heat treatment did not alter the surface of the PBII-films.
This implies that γ-radiation may alter the surface characteristics contributing to surface complexation of Co2+.
