The role of an abradable seal is to form an airtight seal between the wall of the turbine engine and the turbine blade. When the turbine blades expand due to thermal expansion and centrifugal loading, the abradable seal wears preferentially. Due to the high temperatures and loads within the turbine engine these seals readily oxidise and considerable spallation occurs. To improve the lifespan of the seals, novel geometries have been designed to reduce the development of residual stresses during manufacture. This should in turn reduce the rate of oxidation and subsequent deterioration of the abradable seals during service.