Heat-insulating structure

摘要

Disclosed is a heat-insulating structure which can be used, for example, to reduce the cooling loss of an engine. The heat-insulating structure includes a hollow particle layer made of a lot of hollow particles densely packed on a surface of a metallic base material. The hollow particle layer is covered with a coating.

主权项

1. A heat-insulating structure, comprising:
a hollow particle layer made of a plurality of hollow particles densely packed on a surface of a metallic base material, wherein the plurality of hollow particles include at least one of an Al2O3 component or an SiO2 component, and a portion of the surfaces of the hollow particles that are in contact with surfaces of adjacent hollow particles are not coated with a metallic particle, and the adjacent hollow particles in the hollow particle layer are directly joined together without a metal layer intervening therebetween, at a contact point where the adjacent hollow particles are in contact with each other, and a surface of the hollow particle layer is covered with a coating.