公开(公告)号：US20140072810A1

公开(公告)日：2014-03-13

申请号：US14000984

申请日：2012-02-21

申请人： Fernando Gonzalez-Juarez ,  Antonio Jorge De Alburquerque Sanchez ,  Jordi Balcells Villanueva ,  Alberto Quintana Bartual ,  Jose Francisco Fernandez Lozano ,  Esther Enriquez Perez ,  Miguel Angel De La Rubia Lopez ,  Miguel Angel Garcia Garcia-Tunon ,  Miguel Angel Rodriguez Barbero

发明人： Fernando Gonzalez-Juarez ,  Antonio Jorge De Alburquerque Sanchez ,  Jordi Balcells Villanueva ,  Alberto Quintana Bartual ,  Jose Francisco Fernandez Lozano ,  Esther Enriquez Perez ,  Miguel Angel De La Rubia Lopez ,  Miguel Angel Garcia Garcia-Tunon ,  Miguel Angel Rodriguez Barbero

IPC分类号： C04B41/85

CPC分类号： C04B41/85 ,  C04B41/009 ,  C04B41/5035 ,  C04B41/52 ,  C04B41/87 ,  C04B41/89 ,  C23C18/1212 ,  C23C18/1225 ,  C23C18/1245 ,  C23C18/1254 ,  C23C18/127 ,  C04B33/00 ,  C04B14/386 ,  C04B41/4537 ,  C04B41/4549 ,  C04B2103/54 ,  C04B41/5031

摘要： The process is characterised in that it comprises at least one sol-gel layer with a maximum thickness of 800 nm, where said sol-gel layer comprises nanoparticles with a laminar crystal structure, and where each sol-gel layer is obtained from a silicon alkoxide solution; preparation of a dispersion that comprises at least one type of particles with a spherical, fibrillar or laminar morphology, and a laminar crystal structure, wherein at least one of the dimensions, thickness or diameter, of said particles is less than 400 nm; addition of the dispersion prepared to the solution; deposition of the suspension on said substrate; thermal treatment of the substrate; and, in the case of multilayer coatings, optionally, the addition of high-dimensional particles and repetition of the steps, provided that the thermal treatment of the last layer, or outer layer, is performed at a temperature equal to or greater than that of the preceding layer. The invention also relates to the sol-gel coating thus obtained.The present invention solves the problem of contraction in the densification of high-thickness sol-gel coatings and, moreover, provides a process for obtaining a sol-gel coating useful for ceramic surfaces with a large size and/or complex shapes.

摘要翻译： 该方法的特征在于其包含至少一个最大厚度为800nm的溶胶 - 凝胶层，其中所述溶胶 - 凝胶层包含具有层状晶体结构的纳米颗粒，并且其中每个溶胶 - 凝胶层由硅醇盐 解; 制备包含至少一种具有球形，纤维状或层状形态的颗粒的分散体和层状结构，其中所述颗粒的尺寸，厚度或直径中的至少一个小于400nm; 加入溶液中制备的分散体; 悬浮液沉积在所述基底上; 基材的热处理; 并且在多层涂层的情况下，任选地，添加高维颗粒和重复步骤，条件是最后层或外层的热处理在等于或大于 前一层。 本发明还涉及由此获得的溶胶 - 凝胶涂层。 本发明解决了高厚度溶胶 - 凝胶涂层的致密化收缩的问题，此外，提供了获得可用于具有大尺寸和/或复杂形状的陶瓷表面的溶胶 - 凝胶涂层的方法。