CN106083176A - A kind of preparation method of high strength ceramics acoustic board - Google Patents

A kind of preparation method of high strength ceramics acoustic board Download PDF

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Publication number
CN106083176A
CN106083176A CN201610399826.9A CN201610399826A CN106083176A CN 106083176 A CN106083176 A CN 106083176A CN 201610399826 A CN201610399826 A CN 201610399826A CN 106083176 A CN106083176 A CN 106083176A
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parts
acoustic board
high strength
strength ceramics
zro
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韩晓春
杨志峰
马成良
刘少华
王根水
王士维
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JIANGSU NANCI INSULATORS CO Ltd
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JIANGSU NANCI INSULATORS CO Ltd
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    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
    • C—CHEMISTRY; METALLURGY
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    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/36—Reinforced clay-wares
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/007—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore distribution, e.g. inhomogeneous distribution of pores
    • C04B38/0074—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore distribution, e.g. inhomogeneous distribution of pores expressed as porosity percentage
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3225—Yttrium oxide or oxide-forming salts thereof
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/36—Glass starting materials for making ceramics, e.g. silica glass
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5276—Whiskers, spindles, needles or pins
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance

Abstract

The invention discloses a kind of preparation method method of high strength ceramics acoustic board, by inorganic nanoparticles, shale ore, flyash, enhancing crystalline substance, poromerics, inorganic high-temp foaming agent, the ZrO of stabilisation2Stirring, grinds to form slurry, by slurry injection molding, drying and 1100 ~ 1400 DEG C of sintering, obtains high strength ceramics acoustic board.Improve counter-bending breaking load and the shock resistance of acoustic board by using inorganic nanoparticles toughening technology, transformation toughening technology, mono-crystlling fibre toughening technology.

Description

A kind of preparation method of high strength ceramics acoustic board
Technical field
The invention belongs to acoustic material field, particularly relate to a kind of preparation method method of high strength ceramics acoustic board.
Background technology
With the fast development of China's economy and industrialization, the quickly propelling of urbanization process.In recent years, railway, public affairs Road, subway and urban light rail are increasing, while being convenient for people to trip, but bring the atmosphere pollution that continues, water pollution and consolidate The fourth-largest pollution noise pollution after body waste pollution, and how to control high-speed railway noise and become present stage people The Main way of research.Building sound barrier is to reduce one of maximally efficient and actual technological means of noise pollution at present.And its Middle acoustic board is then wherein key technology and main material.Inorganic acoustic board has corrosion-resistant, pollution-free, low cost and other advantages, But the low defect of existence sound absorbing capabilities that in existing inorganic acoustic board, intensity is high, and sound absorbing capabilities high to there is intensity not enough Defect, the contradiction therefore coordinated between sound barrier intensity and sound absorbing capabilities becomes urgent problem.
Content of the invention
In order to overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of counter-bending breaking load and shock resistance Excellent performance and there is many grades pore structure and bigger porosity, the preparation side of the good high strength ceramics acoustic board of acoustically effective Method.
For reaching above-mentioned purpose, the present invention is achieved by the following technical solutions.
A kind of high strength ceramics acoustic board, includes following raw material by weight: inorganic nanoparticles 2～5 parts, shale 10～40 Part, 10～40 parts of flyash, strengthen whisker 10～20 parts, poromerics 20～40 parts, inorganic high-temp foaming agent 3～8 parts, ZrO22～3 parts, and account for ZrO2The Y of weight 2%-3%2O3。
Described inorganic nanoparticles is white glue mud and the hybrid particles of glass dust 1:5 in mass ratio further.
Further described enhancing whisker be mono-crystlling fibre material SiO2 whisker, SiC whisker, in alundum (Al2O3) whisker A kind of.
Described SiO2 diameter of whiskers 0.1～9 μm, length 10～9000 μm further.
Described poromerics is perlite further.
Further described inorganic high-temp foaming agent be carborundum, the one in di-iron trioxide.
Additionally provide a kind of preparation method method of high strength ceramics acoustic board further, comprise the following steps:
(1) by ZrO2With account for ZrO2The Y of quality 2%-3%2O3Hybrid Heating to about 1200 DEG C, cools down to stabilize ZrO2；
(2) by weight by inorganic nanoparticles 2～5 parts, 10～40 parts of shale, 10～40 parts of flyash, enhancing whisker 10～20 parts, poromerics 20～40 parts, inorganic high-temp foaming agent 3～8 parts, ZrO22～3 parts of mixing and water addings 30～40 parts stir Mix, grind to form slurry；
(3) slurry injection molding, the demoulding are dried rear and high temperature sintering, are cooled to room temperature, obtain high strength ceramics acoustic board.
In described step (2) adding each raw material in ball mill further, material, ball ratio is for 1:2, ball milling 3～4h.
In described step (3), the demoulding is dried the demoulding after dry 2～3 days under natural environment for wet base further, then at 50～70 DEG C of drying 5～8h.
In described step (3), high temperature sintering is 1100～1400 DEG C of sintering further, is incubated 15-30min.
In ceramic material, by adding the ZrO of stabilized process2Realize transformation toughening, at ZrO2Phasor has three kinds Crystal formation, i.e. monocline, four directions and cube, monocline ZrO2It is heated to about 1200 DEG C and be changed into four directions ZrO2, this phase velocity quickly, and Along with the volume contraction of 7%-9%, cooling procedure occurs same amount of volumetric expansion, often result in goods sintered Journey ftractures, by adding Y2O3, with four directions ZrO under high temperature2Forming solid solution, in cooling procedure, this solid solution will not be sent out Raw lattice transformation, does not has Volume Changes, effectively avoids the cracking of goods.
The nano level particle of middle employing chosen by raw material, and its total surface area will sharply increase, and its cumulative volume is constant, institute Also can significantly promote therewith with total specific surface area, material surface can expose more atom number, causes material surface Confusion degree is aggravated, owing to lacking adjacent atom around surface atom, and coordination unsaturation, cause substantial amounts of dangling bond and unsaturated bond Deng, thus define more activated centre, surface can and Surface binding energy increase all rapidly, cause the material after nanometer with The probability that other atoms combine increases, and is consequently increased the attraction of other atoms, thus reaches enhanced purpose；
Adding and strengthening the toughness that whisker can substantially change product, bend fracture load promotes 50～78%.
Its granularity of the expanded material being used is thinner, more can improve its dispersiveness in blank, more can guarantee that material The homogeneity of foaming and intumescing.Research shows, when expanded material particle diameter is 37～44 μm, material internal open pore porosity is 60% Above, opening and micro-mesoporous ratio of remaining silent are moderate, have many grades pore structure and bigger porosity, use inorganic foamed simultaneously Agent, largely decreases pollution.
Beneficial effect: compared with prior art, it is an advantage of the current invention that:
1) open pore structure, integral finish and micro-Jie that remains silent in acoustic board surface to internal numerous tiny unlimited duct Boring ratio example is moderate, has many grades pore structure and bigger porosity, porosity of=60%, and acoustically effective is good；
2) improve suction by using inorganic nanoparticles toughening technology, transformation toughening technology, mono-crystlling fibre toughening technology The counter-bending breaking load of sound plate and shock resistance.
Detailed description of the invention
Below in conjunction with example, the present invention is described in further detail.
Embodiment 1
A kind of preparation method method of high strength ceramics acoustic board, comprises the following steps:
(1) by ZrO2With account for ZrO2The Y of quality 2.2%2O3Hybrid Heating to about 1200 DEG C, the ZrO cooling down to stabilize2；
(2) by weight the 30%th, inorganic nanoparticles the 3%th, shale ore the 15%th, flyash is strengthened whisker the 15%th, micropore The material ZrO that the 30%th, the 5%th, inorganic high-temp foaming agent stabilizes2The 35 parts of stirrings of 2 parts of mixing and water addings, add in ball mill, material, Ball is than for 1:2, ball milling 3～4h；Wherein inorganic nanoparticles is white glue mud and the hybrid particles of glass dust 1:5 in mass ratio；Increase Strong whisker is mono-crystlling fibre material SiO2 whisker, its diameter 0.1～9 μm, length 10～9000 μm；Poromerics is pearl Rock；Inorganic high-temp foaming agent is carborundum；
(3) by slurry injection molding, the demoulding after dry 2～3 days under natural environment of wet base, then at 50～70 DEG C of drying 5～8h, It in 1100～1400 DEG C of high temperature sinterings, is incubated 15-30min, is cooled to room temperature, obtains high strength ceramics acoustic board.
Embodiment 2
Substantially the same manner as Example 1, except that Y2O3For ZrO2The 3% of quality, inorganic nanoparticles 2 parts, shale 10 Part, 40 parts of flyash, strengthen whisker be SiC whisker 20 parts, poromerics 20 parts, inorganic high-temp foaming agent be di-iron trioxide 8 Part, the ZrO of stabilisation22.5 parts, 30 parts of water.
Embodiment 3
Substantially the same manner as Example 1, except that Y2O3For ZrO2The 2% of quality, inorganic nanoparticles 5 parts, shale 40 Part, 10 parts of flyash, strengthen whisker be alundum (Al2O3) whisker 10 parts, poromerics 40 parts, inorganic high-temp foaming agent be carbonization Silicon 3 parts, the ZrO of stabilisation23 parts, 40 parts of water.
According to the regulation detection in " railway sound barrier acoustic member technology requires and method of testing " (TB/T3122-2010) The ceramic sound absorbing plate of three kinds of embodiments of gained, detection data are as follows:
The present invention is illustrated according to above-described embodiment, it will be appreciated that above-described embodiment does not limit this in any form Invention, the technical scheme that all employing equivalents or equivalent transformation mode are obtained, all fall within protection scope of the present invention.

Claims (10)

1. a high strength ceramics acoustic board, it is characterised in that include following raw material by weight: inorganic nanoparticles 2 ~ 5 part, page 10 ~ 40 parts of rock, 10 ~ 40 parts of flyash, strengthen whisker 10 ~ 20 parts, poromerics 20 ~ 40 parts, inorganic high-temp foaming agent 3 ~ 8 parts, ZrO22 ~ 3 parts, and account for ZrO2The Y of weight 2%-3%2O3。
2. a kind of high strength ceramics acoustic board according to claim 1, it is characterised in that described inorganic nanoparticles is white glue The hybrid particles of mud and glass dust 1:5 in mass ratio.
3. a kind of high strength ceramics acoustic board according to claim 1, it is characterised in that described enhancing whisker is mono-crystlling fibre One in material SiO2 whisker, SiC whisker, alundum (Al2O3) whisker.
4. a kind of high strength ceramics acoustic board according to claim 3, it is characterised in that described SiO2 diameter of whiskers 0.1 ~ 9 μm, length 10 ~ 9000 μm.
5. a kind of high strength ceramics acoustic board according to claim 1, it is characterised in that described poromerics is perlite.
6. a kind of high strength ceramics acoustic board according to claim 1, it is characterised in that described inorganic high-temp foaming agent is carbon One in SiClx, di-iron trioxide.
7. the preparation method method of a high strength ceramics acoustic board, it is characterised in that comprise the following steps:
(1) by ZrO2With account for ZrO2The Y of quality 2%-3%2O3Hybrid Heating to about 1200 DEG C, the ZrO cooling down to stabilize2；
(2) by weight by inorganic nanoparticles 2 ~ 5 parts, 10 ~ 40 parts of shale, 10 ~ 40 parts of flyash, strengthen whisker 10 ~ 20 parts, Poromerics 20 ~ 40 parts, inorganic high-temp foaming agent 3 ~ 8 parts, ZrO230 ~ 40 parts of stirrings of 2 ~ 3 parts of mixing and water addings, grind to form slurry；
(3) slurry injection molding, the demoulding are dried rear and high temperature sintering, are cooled to room temperature, obtain high strength ceramics acoustic board.
8. the preparation method method of a kind of high strength ceramics acoustic board according to claim 1, it is characterised in that described step (2) in adding each raw material in ball mill, material, ball ratio is for 1:2, ball milling 3 ~ 4h.
9. the preparation method method of a kind of high strength ceramics acoustic board according to claim 2, it is characterised in that described step (3) demoulding after the demoulding is dried and is dried 2 ~ 3 days under natural environment for wet base in, then at 50 ~ 70 DEG C of drying 5 ~ 8h.
10. the preparation method method of a kind of high strength ceramics acoustic board according to claim 1, it is characterised in that described step Suddenly in (3), high temperature sintering is 1100 ~ 1400 DEG C of sintering, is incubated 15-30min.
CN201610399826.9A 2016-06-07 2016-06-07 A kind of preparation method of high strength ceramics acoustic board Pending CN106083176A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110342956A (en) * 2019-08-21 2019-10-18 山西天合新材料科技有限公司 Inexpensive ecological ceramic material with a variety of sound absorption structures and preparation method thereof
CN113321528A (en) * 2021-07-02 2021-08-31 山东理工大学 Full-ceramic sound barrier and preparation method thereof
CN117510229A (en) * 2023-11-09 2024-02-06 宜兴市蜀都文化创意发展有限公司 Porous purple sand ceramic and preparation method and application thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102617180A (en) * 2012-03-27 2012-08-01 江苏南瓷绝缘子有限公司 Porous foamed ceramic and preparation method thereof
CN103539482A (en) * 2013-11-07 2014-01-29 陈松 Ultra-microporous ceramic sound-absorbing material and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102617180A (en) * 2012-03-27 2012-08-01 江苏南瓷绝缘子有限公司 Porous foamed ceramic and preparation method thereof
CN103539482A (en) * 2013-11-07 2014-01-29 陈松 Ultra-microporous ceramic sound-absorbing material and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110342956A (en) * 2019-08-21 2019-10-18 山西天合新材料科技有限公司 Inexpensive ecological ceramic material with a variety of sound absorption structures and preparation method thereof
CN113321528A (en) * 2021-07-02 2021-08-31 山东理工大学 Full-ceramic sound barrier and preparation method thereof
CN113321528B (en) * 2021-07-02 2022-10-11 山东理工大学 Full-ceramic sound barrier and preparation method thereof
CN117510229A (en) * 2023-11-09 2024-02-06 宜兴市蜀都文化创意发展有限公司 Porous purple sand ceramic and preparation method and application thereof

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