Centre National De La Recherche Scientifique

Snecma

Saint-gobain Centre De Recherches Et D'etudes Europeen

Université Paul Sabatier (toulouse Iii)

Celine Viazzi

Justine Menuey

Jean-Pierre Bonino

Florence Ansart

Sylvain Deville

Justine Fenech

Product formed from a ceramic material, at least part of the said product not being formed from amorphous silica and including pores and satisfying the following criteria (a), (b) and (c): (a) at least 70% by number of the said pores are frustoconical tubular pores extending substantially parallel to each other in a longitudinal direction; (b) in at least one cross-section plane, the mean size of the cross sections of the said pores is greater than 0.15 &#x3bc;m and less than 300 &#x3bc;m; (c) in at least one cross-section plane, at least 50% by number of the pores have a convexity index Ic of greater than 87%, the convexity index of a pore being equal to the ratio Sp/Sc of the surfaces Sp and Sc delimited by the perimeter and by the convex envelope of the said pore, respectively.

Tubular pore material

The invention relates to a method for manufacturing a thermal barrier protection covering a superalloy metal substrate and comprising at least one metal sublayer () and a ceramic layer () based on zirconia stabilized with yttrium having a column structure defining pores. The following steps are applied: Application to the protection of aeronautical protection parts.

Method for manufacturing a thermal-barrier protection and multilayer coating suitable for forming a thermal barrier

Growing community of inventors

Mons, France

Celine Viazzi