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Mullite fiber reinforced metal-based composite ceramic sheet and preparation method thereof

A metal matrix composite, mullite fiber technology, applied in the production of ceramic materials and other directions, can solve the problem of uneven dispersion of self-growing substances, and achieve the effect of improving mechanical structure stability, high reactivity, and avoiding material failure.

Active Publication Date: 2022-05-17
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The study found that the internal molten glass phase can precipitate mullite, cereuxite and other reinforcing phase substances, which help to improve the comprehensive mechanical properties of the composite ceramic sheet, but the internal self-growth substances are not uniformly dispersed.

Method used

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  • Mullite fiber reinforced metal-based composite ceramic sheet and preparation method thereof
  • Mullite fiber reinforced metal-based composite ceramic sheet and preparation method thereof
  • Mullite fiber reinforced metal-based composite ceramic sheet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1) According to a specific stoichiometric ratio, 8 raw materials of calcined alumina, magnesia, nanoscale fused silica, monazite, bentonite, pyrophyllite, black talc, and potassium albite feldspar are uniformly mixed. Then, based on the quality of the mixed raw materials, nano-scale aluminum powder and sodium tripolyphosphate were added thereto, followed by ball milling, and then the ball milled product was passed through an 80-mesh sieve, and the undersize was collected and dried to obtain powder A. Among them, the mass ratio of calcined alumina, magnesia, nanoscale fused silica, monazite, bentonite, pyrophyllite, black talc and potassium albite feldspar is 30:5:20:10:1:5:5:10, mixed The mass percentage of aluminum powder added to powder A is 5%, the particle size is 100nm, and the mass percentage of sodium tripolyphosphate is 0.5%.

[0040] 2) The powder A is subjected to iron removal, sieving, pulping, spray granulation and other processes to obtain green body powder...

Embodiment 2

[0044] 1) According to a specific stoichiometric ratio, 8 raw materials of calcined alumina, magnesia, nanoscale fused silica, monazite, bentonite, pyrophyllite, black talc, and potassium albite feldspar are uniformly mixed. Then, based on the quality of the mixed raw materials, nano-scale aluminum powder and sodium tripolyphosphate were added thereto, followed by ball milling, and then the ball milled product was passed through a 120-mesh sieve, and the undersize was collected and dried to obtain mixed powder A. Among them, the mass ratio of calcined alumina, magnesia, nanoscale fused silica, monazite, bentonite, pyrophyllite, black talc and potassium albite feldspar is 35:10:25:15:3:10:10:15, mixed The mass percentage of aluminum powder added to powder A is 10%, the particle size is 300nm, and the mass percentage of sodium tripolyphosphate is 1.2%.

[0045] 2) The powder A is subjected to iron removal, sieving, pulping, spray granulation and other processes to obtain green b...

Embodiment 3

[0049] 1) According to a specific stoichiometric ratio, 8 raw materials of calcined alumina, magnesia, nanoscale fused silica, monazite, bentonite, pyrophyllite, black talc, and potassium albite feldspar are uniformly mixed. Then, based on the quality of the mixed raw materials, nano-scale aluminum powder and sodium tripolyphosphate were added thereto, followed by ball milling, and then the ball milled product was passed through a 100-mesh sieve, and the undersize was collected and dried to obtain powder A. Among them, the mass ratio of calcined alumina, magnesia, nanoscale fused silica, monazite, bentonite, pyrophyllite, black talc and potassium albite feldspar is 32:8:22:12:2:8:7:13. The mass percentage of aluminum powder added to the mixed powder A is 8%, the particle size is 220nm, and the mass percentage of sodium tripolyphosphate is 0.7%.

[0050] 2) The powder A is subjected to iron removal, sieving, pulping, spray granulation and other processes to obtain green body po...

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Abstract

The invention provides a mullite fiber reinforced metal matrix composite ceramic sheet and a preparation method thereof.The preparation method comprises the steps that calcined aluminum oxide, magnesian soil, nanoscale fused quartz, monazite, bentonite, pyrophyllite, black talc, potassium albite, aluminum powder and sodium tripolyphosphate are mixed and then subjected to ball milling treatment, and mixed powder is obtained; performing pulping and spray granulation to obtain green body powder; the preparation method comprises the following steps: preparing a ceramic thin plate blank, pressing the blank powder into a ceramic plate-shaped blank, sintering the ceramic plate-shaped blank to obtain a ceramic thin plate blank, glazing the ceramic thin plate blank, grinding the surface, and polishing to obtain the mullite fiber reinforced metal-based composite ceramic thin plate. The invention has the advantages of simple preparation process and low raw material cost, and can be applied to the commercial fields of architectural decoration ceramics, protective materials and the like. By optimizing the solid-phase reaction sintering schedule and regulating and controlling the internal mullite crystal phase precipitation rate and precipitation amount, the prepared large-size ceramic sheet is excellent in mechanical property and wide in potential commercial market.

Description

technical field [0001] The invention belongs to the technical field of metal-matrix composite ceramic sheets, and relates to a mullite fiber reinforced metal-matrix composite ceramic sheet and a preparation method thereof. Background technique [0002] In recent years, with the gradual rise of architectural ceramics in the field of home decoration, architectural ceramic thin plates have attracted much attention due to their advantages of lightness, low energy consumption and less raw materials, and have become the key research direction of traditional architectural ceramic plates. Only in 2020 The international market share has reached 100 billion yuan, and the development potential is huge. [0003] Compared with traditional architectural ceramic plates, the thickness of architectural ceramic thin plates is only 3-5mm, which can save 30-50% of raw material consumption, 20-40% of production emissions, and 20-30% of production energy consumption, which has become a traditiona...

Claims

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Application Information

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IPC IPC(8): C04B35/80C04B35/10C04B35/622C04B35/64
CPCC04B35/80C04B35/10C04B35/622C04B35/64C04B2235/5228C04B2235/3418C04B2235/349C04B2235/3472C04B2235/34C04B2235/3227C04B2235/3229C04B2235/402C04B2235/447C04B2235/5445C04B2235/5454Y02P40/60
Inventor 曹丽云钟辛子黄剑锋姬宇王东平蒋永吴辰宇胡肄琛
Owner SHAANXI UNIV OF SCI & TECH
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