A two-dimensional silicon carbide fiber cloth reinforced ceramic matrix composite filter tube

A silicon carbide fiber and composite material technology, which is applied in the fields of dispersed particle filtration, chemical instruments and methods, separation methods, etc., can solve the problems of low bonding strength and easy falling off, and achieves improved air permeability, improved reliability, and improved high temperature resistance. The effect of oxidative properties

Active Publication Date: 2021-04-02
SUZHOU HONGJIU AVIATION THERMAL MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This patent uses organic precursors to impregnate cracked products as the binding phase, which has low binding strength and is easy to fall off under the scouring of acid-base fluids.

Method used

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  • A two-dimensional silicon carbide fiber cloth reinforced ceramic matrix composite filter tube

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A two-dimensional silicon carbide fiber cloth reinforced ceramic matrix composite filter tube

[0013] refer to figure 1 , Schematic diagram of two-dimensional silicon carbide fiber cloth reinforced ceramic matrix composite material filter tube, where [10] is a two-dimensional silicon carbide fiber cloth laminated stitched fabric; [20] is a ceramic filter membrane; [30] is a two-dimensional twill fabric; [40] ] is a two-dimensional plain weave; [50] is a ceramic matrix; [60] is a silicon carbide fiber. From the inside to the outside, there are porous ceramic matrix composites and ceramic filter membranes respectively. The porous ceramic matrix composite supports include two-dimensional silicon carbide fiber cloth laminated suture fabric and ceramic matrix. The ceramic matrix is ​​on the surface of silicon carbide fibers, and the two-dimensional fibers are carbonized. Silicon fiber cloth lay-up stitching fabric includes two-dimensional silicon carbide fiber cloth lay-up...

Embodiment 2

[0016] A two-dimensional silicon carbide fiber cloth reinforced ceramic matrix composite filter tube

[0017] refer to figure 1 , Schematic diagram of two-dimensional silicon carbide fiber cloth reinforced ceramic matrix composite filter tube, where [10] is a two-dimensional silicon carbide fiber cloth laminated stitched fabric; [20] is a ceramic filter membrane; [30] is a two-dimensional twill fabric; [ 40] is a two-dimensional plain weave; [50] is a ceramic matrix; [60] is a silicon carbide fiber. From the inside to the outside, there are porous ceramic matrix composites and ceramic filter membranes respectively. The porous ceramic matrix composite supports include two-dimensional silicon carbide fiber cloth laminated suture fabric and ceramic matrix. The ceramic matrix is ​​on the surface of silicon carbide fibers, and the two-dimensional fibers are carbonized. Silicon fiber cloth lay-up stitching fabric includes two-dimensional silicon carbide fiber cloth lay-up structure...

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Abstract

A silicon carbide fiber fabric reinforced ceramic matrix composite filter tube is characterized by comprising a two-dimensional silicon carbide fiber cloth paving and sewing fabric, a composite interface and a ceramic matrix. The composite interface layer is arranged between the surface of the silicon carbide fiber and the ceramic matrix. In the thickness direction, the laying layer structure is transited from a two-dimensional twill cloth to a two-dimensional plain cloth, the outer layer is a plain silicon carbide fiber cloth and the inner layer is a twill silicon carbide fiber cloth; the total number of the two-dimensional cloth laying layers is 15-20, the number of the plain cloth layers is 1-3, and the number of the twill cloth layers is 7-14; wherein the porosity of the composite material filter pipe is 35-40%, and the volume fraction of the silicon carbide fiber cloth laminated sewing fabric is 40-45%. The thickness of the pipe wall of the ceramic matrix composite filter pipe is5-10 mm. The preparation method has the advantages that (1) the high-strength and high-modulus silicon carbide fiber improves the high-temperature oxidation resistance of the composite material, (2) the fiber fabric with the gradient pore structure improves the air permeability of the filter pipe, and (3) the internal pore size distribution has designability and can replace a surface ceramic filter membrane to improve the reliability of the material.

Description

technical field [0001] The invention relates to a ceramic matrix composite material filter tube, in particular to a two-dimensional silicon carbide fiber cloth reinforced ceramic matrix composite material filter tube. Background technique [0002] The purification and dust removal of high-temperature gas is an essential key technology to realize the rational utilization of high-temperature gas resources, and it is also an advanced environmental protection technology. In the development of high-temperature filter media, a lot of research work has been carried out around the improvement of thermal shock resistance of ceramic filter materials and the improvement of high-temperature corrosion resistance of metal filter materials for many years, and substantial progress has been made, especially ceramic fiber reinforced composite materials. The development of porous materials has significantly improved the thermal shock resistance of ceramic filter materials. [0003] Fiber-rein...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B01D46/00B01D46/30B01D46/54
Inventor余盛杰李喜英其他发明人请求不公开姓名
OwnerSUZHOU HONGJIU AVIATION THERMAL MATERIALS TECH CO LTD