THERMALLY STABLE POLYCRYSTALLINE ULTRA-HARD CONSTRUCTIONS

摘要

Thermally stable polycrystalline constructions comprise a body having a polycrystalline ultra-hard phase and a plurality of empty voids. A population of the voids c an be filled with a reaction product. The body is substantially free of a catalyst material. The construction comprises a first support member attached to the body by a first braze material. A second support member is attached to the body and the first support member by a second braze material. The construction may include a third support member attached to the body tha t is integral or separate from one of the other support members. The braze materials used to attached the support members can be the same or different, as can be the materials used t o form the different support members.