Improved ceramic slab for facings, and method for its manufacture

A technology of ceramic plate and ceramic powder, applied in the field of ceramic plate or ceramic tile, can solve the problems of lack of reliability of bonding connection, high cost, and limitation of wide application.

Inactive Publication Date: 2008-03-12
SACMI COOP MECCANICI IMOLA S C R L
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Although both described solutions provide good results, their wide application is severely limited, especially due to the lack of reliability of bonded connections and the high cost of forming such connections

Method used

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  • Improved ceramic slab for facings, and method for its manufacture
  • Improved ceramic slab for facings, and method for its manufacture
  • Improved ceramic slab for facings, and method for its manufacture

Examples

Experimental program
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Embodiment Construction

[0053] A reinforced ceramic plate 1, as shown in Figure 1, comprises a continuous ceramic matrix 2 into which reinforcing fibers 3 are incorporated. In the particularly illustrated example, the reinforcing fiber is a steel wire of a straight section, preferably stainless steel; but in general, the reinforcing fiber can be a material such as carbon fiber, glass fiber or aramid fiber that is superior in resistance to the ceramic matrix 2 The filaments are not necessarily straight.

[0054] As shown in FIG. 1 , reinforcing fibers 3 are distributed inside the ceramic matrix, thereby defining a composite layer 20 of ceramics and fibers between two pure ceramic layers 22 and 21 (see also FIG. 2 ), in which composite In layer 20, the reinforcing fibers 3 are located substantially on the same surface, separated and spaced so as to form a discontinuous web.

[0055] In this way, whenever a crack forms in the ceramic plate 1, its propagation is interrupted upon encountering the reinfor...

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PUM

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Abstract

An improved ceramic slab (1) and a method for its manufacture. The slab (1) comprises a continuous ceramic matrix (2) internally incorporating reinforcement fiber (3) having resistance characteristics superior to those of the ceramic matrix itself. The method comprises the following steps: creating, on a support surface (11), a first layer of ceramic powder (5); distributing an assembly of reinforcement fibers (3) over at least an area of the top surface (50) of said first layer (5) of ceramic powder; covering the reinforcement fibers, to create at least a second layer (6) of ceramic powder on said first layer (5), in order to obtain a soft ceramic blank of desired thickness containing the reinforcement fibers; pressing said soft blank to compact the powders and obtain an unfired ceramic slab; subjecting said unfired ceramic slab to firing, to obtain a ceramic slab (1) comprising a continuous ceramic matrix (2) with the reinforcement fibers (3) incorporated.

Description

technical field [0001] The present invention basically relates to ceramic plates or tiles for facing and flooring, and their method of manufacture. Background technique [0002] Ceramic slabs, commonly used for facings and floors, are known to have high pressure resistance, surface hardness and wear resistance, properties provided by the constituent materials of the ceramic mixture and the high temperature firing process to which the mixture is subjected. [0003] In contrast, said ceramic plates have a low tensile strength and a generally brittle behavior, which often limits their use in conditions with tensile or bending stress states. [0004] Under such conditions, due to knocking and particularly concentrated stresses, small cracks can form in the ceramic plate and, due to the brittle behavior of the ceramic, gradually propagate throughout the ceramic plate until it breaks apart. [0005] This inherent ceramic brittleness is especially acute if the panels are used to v...

Claims

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Application Information

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IPC IPC(8): C04B35/76C04B35/80B32B18/00E04B1/20
CPCB28B23/18E04F15/08B28B5/027B28B13/022E04F13/142B28B3/123
Inventor S·瓦里C·里奇
Owner SACMI COOP MECCANICI IMOLA S C R L
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