▎ 摘　　要

NOVELTY - Graphite felt-based composite material comprises graphite felt, and transition layer sequentially coated on the surface of the graphite feel and more than two layers of ceramic coating. USE - The material is useful as heat preservation heat insulation material in high temperature furnace body, solar energy, and semiconductor silicon industry. ADVANTAGE - The composite material has excellent corrosion resistance, is easy to peel off from the substrate to cause failure in use, and prevents the thermal mismatch caused by the ceramic coating stripping failure. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: preparing graphite felt-based composite material; heat insulating material; and high temperature furnace.