Turbine ring assembly with support when cold and when hot

A turbine ring assembly comprising:

• a plurality of ring sectors made of ceramic matrix composite material forming a turbine ring, and
• a ring support structure having two annular flanges, each ring sector of the plurality of rings sectors having a portion forming an annular base with an inner face defining an inside face of the turbine ring and an outer face from which there project at least two tabs, the at least two tabs of each ring sector of the plurality of rings sectors being retained between the two annular flanges of the ring support structure,
• wherein each tab of the at least two tabs includes a projecting portion on its face situated facing one of the two annular flanges, said projecting portion co-operating with a housing present in the one of the two annular flanges,
• wherein each tab of the at least two tabs includes at least one opening in which there is received a portion of a retention element secured to the one of the two annular flanges situated facing said tab of the at least two tabs, clearance being present between the opening of said tab of the at least two tabs and the portion of the retention element present in said opening, said retention element being made of a material having a coefficient of thermal expansion that is greater than the coefficient of thermal expansion of the ceramic matrix composite material of the plurality of ring sectors, and
• wherein the housing in the one of the two annular flanges presents at least first and second sloping portions bearing against the projecting portion co-operating with said housing, said at least first and second sloping portions, when observed in meridian section, each forming a non-zero angle relative to a radial direction of the turbine ring and relative to an axial direction of the turbine ring.