White sintered glass-ceramic tiles with improved thermal insulation properties for building applications |
| |
| Affiliation: | 1. Dipartimento di Ingegneria Industriale, University of Padova, Italy;2. Ecole Nationale Supérieure de Céramique Industrielle, SPCTS, UMR 7315, 87000 Limoges, France;3. National Program for Advanced Materials and Building System, KACST, 11442 Riyadh, Saudi Arabia;4. Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA 16801, United States;1. The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, 430081 Wuhan, PR China;2. National-provincial Joint Engineering Research Center of High Temperature Materials and Lining Technology, Wuhan University of Science and Technology, 430081 Wuhan, PR China |
| |
| Abstract: | In order to provide a thermal barrier in an arid environment, highly reflective coatings were deposited on porous substrates made of natural raw materials from Saudi Arabia. Although highly reflective coatings inhibit heat absorption from the incoming sunlight, the body of conventional ceramic tiles warms up to environmental temperature through conduction, convection and radiation. A strategy to reduce the penetration of this heat into the building is to use a highly porous substrate, which reduces the thermal conductivity of the tile, coupled with a highly reflective glaze. The approach leads to the concept of “cool” tiles, aimed at improving the thermal efficiency of buildings. The present paper provides a first example, based on layered wollastonite-hardystonite glass-ceramics developed by double pressing of glass powders and additives followed by sinter-crystallization. |
| |
| Keywords: | Cool roof Cool tile Sinter-crystallization Glazed tile Glass-ceramics |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
