Process for synthesizing diamond with corrugations on surface

• Main Authors: LIU KAOSHAN, CHEN ZHAOZHEN, SU HAO, LU YINJIE
• Format: Patent
• Language: Chinese; English
• Published: 16.07.2024
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention belongs to the technical field of synthetic diamond production and processing, and provides a process for synthesizing diamond with surface corrugations, which comprises the following steps: preparing a powder catalyst with the fineness of-300 meshes, 19% of Ni, 0.05% of Ti, 0.85% of Si3N4, 0.1% of CeO2 and 80% of Fe, mixing spherical graphite powder with the fineness of-300 meshes and the premixed powder catalyst in a three-dimensional mixer, granulating, pressing into a core column, and carrying out extrusion molding on the core column to obtain the diamond with the surface corrugations. The core column is put into a vacuum furnace to be treated and then put into a synthesis block to be heated, and then high-temperature and high-pressure synthesis is conducted through a cubic press. The prepared high-iron catalyst raw materials are changed, so that the growth speed of diamond is increased, and meanwhile, the surface of the diamond generates an obvious corrugation effect; by changing the struct