Method for coating a piston

A method for coating a piston of an internal combustion engine, comprising:

• providing the piston, which includes a piston skirt and a piston crown with a fire land;
• producing a ceramic suspension including:
• a polar solvent;
• an ionic inorganic binder dissolved in the solvent;
• a plurality of hollow glass spheres distributed in the binder;
• and
• a plurality of ceramic particles distributed in the binder, the plurality of ceramic particles including at least one of oxides, nitrides, and carbides;
• applying the ceramic suspension onto the piston;
• and
• producing a coating on the piston via removing the solvent from the applied ceramic suspension, the coating having a matrix formed by the binder in which the plurality of hollow glass spheres and the plurality of ceramic particles are arranged in a distributed manner.

A method for coating a piston of an internal combustion engine, comprising:

• providing the piston, which includes a piston skirt and a piston crown with a fire land;
• producing a ceramic suspension including:
• a solvent;
• a binder dissolved in the solvent;
• a plurality of hollow glass spheres distributed in the binder;
• and
• a plurality of ceramic particles distributed in the binder;
• applying the ceramic suspension onto the piston;
• producing a coating on the piston via removing the solvent from the applied ceramic suspension, the coating having a matrix formed by the binder in which the plurality of hollow glass spheres and the plurality of ceramic particles are arranged in a distributed manner;
• wherein the plurality of ceramic particles form at least 50%-mass of the coating;
• wherein the matrix forms less than 5%-mass of the coating;
• and
• wherein the plurality of hollow glass spheres form 25 to 35%-mass of the coating.