Disclosed is a thermal insulation to be inserted between two structures, surfaces, walls or the walls of components which are to be insulated. The thermal insulation consists of an plurality of hollow spheres made up by loose hollow spheres or by hollow spheres which are interconnected by sintered contacts. The ratio of the outer diameter of the hollow spheres to their wall thickness is 5 300. The hollow spheres are made of silicides, silicide composites, metals and intermetals and the alloys thereof, ceramics or glass. When the walls of the hollow spheres have a closed porous structure, the inner pressure in the hollow spheres is between 0 to 0.1 that of the surrounding air pressure at room temperature.

É divulgada uma isolação térmica a ser introduzida entre duas estruturas, superfícies, paredes ou as paredes dos componentes que devem ser isolados. A isolação térmica consiste em um plurality de esferas ocas composto por esferas ocas frouxas ou pelas esferas ocas que são interconectadas por contatos sintered. A relação do diâmetro exterior das esferas ocas a sua espessura de parede é 5 300. As esferas ocas são feitas dos silicides, os compostos do silicide, os metais e os intermetals e as ligas disso, ceramics ou vidro. Quando as paredes das esferas ocas têm uma estrutura porosa closed, a pressão interna nas esferas ocas está entre 0 a 0.1 que da pressão de ar circunvizinha na temperatura de quarto.

 
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