▎ 摘　　要

NOVELTY - The method comprises using combustion-synthesized graphene and/or doped combustion graphene as raw materials, and sintering for 10 ms to 15 days under the conditions of a temperature of 1200-3000℃ and a pressure of 0 MPa to 200 MPa to obtain carbon-based material. USE - Method for preparing a high-strength carbon-based material based on combustion synthetic graphite, which is used as nuclear graphite electric spark processing tool electrode and rocket technology structure material, ultra-high power electrode, high heat-conducting radiating member, high performance crucible, high temperature and high performance mold. Can also be used in semiconductor industry, photovoltaic industry, optical fiber, mold manufacturing and aerospace and nuclear industry. ADVANTAGE - The method has simple operation and easy for batch production; ensures that the carbon-based material has excellent isotropy; and improves the strength of the carbon based material. The carbon-based material has high strength, heat conduction, high performance crucible, high temperature and high performance mold, and excellent isotropic performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a carbon-based material.