| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite heat insulating material having low thermal conductivity lower than 0.10 W/(mK) in 800°C, and superior in compressive strength to reduce deterioration by thermal load and heat expansion.SOLUTION: A compound heat insulating material consists of a base material 1 consisting of a heat insulating material with low thermal conductivity and a reinforcement material 2 consisting of a heat insulating material that strength characteristics is superior than the heat insulating material of the base material 1. The base material 1 and the reinforcement material 2 consist solid construction, the compressive strength is more than 1.0 MPa and the thermal conductivity is lower than 0.10 W/(mK) in 800°C. The reinforcement material 2 is buried and penetrating to a thickness direction of the base material 1, and it is preferable that the surface area of the reinforcement material 2 is 6-20% of all surface area.SELECTED DRAWING: Figure 1 |
