首页>
外国专利>
METHODS OF FORMING POLYCRYSTALLINE DIAMOND COMPACTS AND RESULTING POLYCRYSTALLINE DIAMOND COMPACTS AND CUTTING ELEMENTS
METHODS OF FORMING POLYCRYSTALLINE DIAMOND COMPACTS AND RESULTING POLYCRYSTALLINE DIAMOND COMPACTS AND CUTTING ELEMENTS
展开▼
机译:形成多晶金刚石压块的方法以及产生多晶金刚石压块和切削元素的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
Methods for forming cutting elements comprising polycrystalline materials, methods for forming polycrystalline compacts for cutting elements of a drilling tool, method for forming polycrystalline diamond compacts, and resulting polycrystalline compacts and cutting elements are disclosed. Grains of a hard material are introduced to a press and subj ected to a high pressure, high temperature (HPHT) process to sinter the grains. The system conditions (i.e., temperature and pressure) are then adjusted past a phase or state change point, after which, at least one of the system conditions is held during an anneal stage before the system conditions are adjusted to final levels. The resulting compacts and cutting elements may therefore include inter-granularly bonded hard material grains with a more stable microstructure (e.g., less stressed microstructure) than a polycrystalline compact and cutting element formed without an anneal stage during the HPHT process.
展开▼