Heat shield for a fuel nozzle of a turbine engine

A heat shield for a fuel nozzle of a turbine engine, the heat shield comprising:

• a shield flange having an axial direction, a radial direction, and a circumferential direction, the shield flange including a hot side and a cold side, with a flange hot-side surface located on the hot side of the shield flange;
• and
• a ceramic coating formed on the flange hot-side surface of the shield flange for insulating components on the cold side of the shield flange from heat of combustion, the ceramic coating comprising a plurality of regions including one or more bulk regions and one or more surface regions, each surface region of the one or more surface regions having a surface roughness less than a surface roughness of each bulk region of the one or more bulk regions, a density greater than a density of each bulk region of the one or more bulk regions, or both,
• wherein a bulk region of the one or more bulk regions is adjacent to a surface region of the one or more surface regions in an alternating arrangement to disrupt formation of coke on the ceramic coating.