Element containing thermally stable polycrystalline diamond material and methods and assemblies for formation thereof

A super abrasive element comprising:

• a substantially catalyst-free thermally stable polycrystalline diamond (TSP) body having pores, a contact surface, and diamond grains having an average grain size;
• a base adjacent the contact surface of the TSP body;
• and
• an infiltrant material infiltrated in the base and in the pores of the TSP body at the contact surface to a depth from the contact surface of four average grain sizes or less.

An earth-boring drill bit comprising a cutter, the cutter comprising a super abrasive element comprising:

• a substantially catalyst-free thermally stable polycrystalline diamond (TSP) body having pores and a contact surface;
• a base adjacent the contact surface of the TSP body wherein the TSP body contains diamond grains having an average grain size;
• and
• a non-catalyst alloy infiltrant material infiltrated in the base and in the pores of the TSP body at the contact surface wherein the infiltrant material is infiltrated in the pores of the TSP body to a depth from the contact surface of four average grain sizes or less.

An earth-boring drill bit comprising a cutter, the cutter comprising a super abrasive element comprising:

• a substantially catalyst-free thermally stable polycrystalline diamond (TSP) body having pores, a contact surface, and diamond grains having an average grain size;
• a base adjacent the contact surface of the TSP body;
• and
• an infiltrant material infiltrated in the base and in the pores of the TSP body at the contact surface to a depth from the contact surface of four average grain sizes or less.