CN100347329C - ZnAl2O4 coated aluminium borate whister reinforced aluminium base or magnesium base composite meterial and its preparation method - Google Patents
ZnAl2O4 coated aluminium borate whister reinforced aluminium base or magnesium base composite meterial and its preparation method Download PDFInfo
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- CN100347329C CN100347329C CNB2005101273261A CN200510127326A CN100347329C CN 100347329 C CN100347329 C CN 100347329C CN B2005101273261 A CNB2005101273261 A CN B2005101273261A CN 200510127326 A CN200510127326 A CN 200510127326A CN 100347329 C CN100347329 C CN 100347329C
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Abstract
The present invention relates to reinforced aluminium base or magnesium base composite material of aluminium borate crystal whiskers covered with ZnAl2O4 and a preparation method thereof, particularly to reinforced aluminium base or magnesium base composite material of aluminium borate crystal whiskers and a preparation method thereof. The present invention solves the problems of poor soakage capability and low bonding strength of aluminium borate crystal whiskers and a base body in the existing composite materials, and can effectively prevent interface reaction. The reinforced aluminium base or magnesium base composite material of the aluminium borate crystal whiskers covered with ZnAl2O4 is prepared from ZnO, aluminium borate crystal whiskers and aluminium bases or magnesium bases. The preparation method comprises: (1) the aluminium borate crystal whiskers are added to ZnO collosol; (2) aluminium borate crystal whiskers coated with ZnO are manufactured; (3) pre-cast blocks of the aluminium borate crystal whiskers covered with ZnAl2O4 are manufactured; (4) The reinforced aluminium base or magnesium base composite material of the aluminium borate crystal whiskers covered with ZnAl2O4 can be obtained through squeezing casting operation. The surfaces of the aluminium borate crystal whiskers are covered with ZnAl2O4 which is generated through the reaction of ZnO and aluminium borate, and thereby the wettability and the interfacial bonding strength of the aluminium borate crystal whiskers and the base body are enhanced, and the mechanical property of the composite material are remarkably improved.
Description
Technical field
The present invention relates to a kind of aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material and preparation method thereof.
Background technology
Existing aluminum borate crystal whisker whisker composite material mesoboric acid aluminium whiskers and matrix wetting property are poor, interface bond strength is not high, and the element generation surface reaction in aluminium borate whisker and the matrix, not only damaged the integrity of aluminium borate whisker, and in interface formation fragility phase, reduce the mechanical property of matrix material, seriously restricted the application of matrix material.
Summary of the invention
It is poor to the objective of the invention is in order to solve existing composite mesoboric acid al whisker and matrix wellability, element generation interfacial reaction in aluminium borate whisker and the matrix, not only damaged the integrality of aluminium borate whisker, and in interface formation fragility phase, reduced the mechanical property of composite, seriously restricted the application of composite, and a kind of ZnAl that provides
2O
4Coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material and preparation method thereof.ZnAl
2O
4Coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material are made by ZnO, aluminium borate whisker and aluminium base or three kinds of raw materials of magnesium base; Wherein the quality of ZnO is 2～30% of aluminium borate whisker quality, and the volume of ZnO and aluminium borate whisker accounts for 15～30% of three kinds of raw material volumes, and all the other volumes are aluminium base or the magnesium base.Its preparation method is realized by following steps: (one) joins aluminium borate whisker in the colloidal sol of ZnO and is stirred to thickness, and wherein the quality of ZnO is 2～30% of aluminium borate whisker quality; (2) colloidal sol is at 450～700 ℃ of lower roasting 1～3h, then with aqueous dispersion, dry, make the aluminium borate whisker that ZnO applies; (3) aluminium borate whisker that ZnO is applied is made prefabricated section, and at 800～1000 ℃ of lower roasting 1～3h, obtains the aluminium borate whisker surface and coat ZnAl
2O
4Prefabricated section; (4) extrusion casint namely obtains ZnAl
2O
4Coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material, wherein ZnAl
2O
4The volume of the aluminium borate whisker blank that coats accounts for 15～30% of composite volume, and all the other volumes of 70～85% of composite are aluminium base or the magnesium base.
The reaction of ZnO and aluminium borate forms ZnAl among the present invention
2O
4Be coated to the aluminium borate whisker surface, improved the wellability of aluminium borate whisker and matrix, improved the interface of aluminium borate whisker and matrix, ZnAl
2O
4The element that can effectively hinder in aluminium borate whisker and the matrix does not react, and the mechanical property of composite is significantly improved, and tensile strength has improved 10～30%, percentage elongation has improved 50～100%.
Description of drawings
Fig. 1 is ZnO and aluminium borate whisker ZnAl in the situation of different quality ratio
2O
4The tensile strength of coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material and percentage elongation resolution chart, curve A represents ZnAl
2O
4The percentage elongation curve of coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material, curve B represents ZnAl
2O
4The tensile strength curve of coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material; Fig. 2 does not have ZnAl
2O
4The scanning electron microscopic observation figure of the aluminium borate whisker that coats, Fig. 3 is ZnAl
2O
4The scanning electron microscopic observation figure of the aluminium borate whisker that coats.
Embodiment
The specific embodiment one: present embodiment ZnAl
2O
4Coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material are made by ZnO, aluminium borate whisker and aluminium base or three kinds of raw materials of magnesium base; Wherein the quality of ZnO is 2～30% of aluminium borate whisker quality, and the volume of ZnO and aluminium borate whisker accounts for 15～30% of three kinds of raw material volumes, and all the other volumes are aluminium base or the magnesium base.
Embodiment two: the difference of present embodiment and embodiment one is: the quality of ZnO is 10～20% of an aluminium borate whisker quality, and the volume of ZnO and aluminium borate whisker accounts for 20～25% of three kinds of raw material volumes, and all the other volumes are aluminium base or the magnesium base.
Embodiment three: the difference of present embodiment and embodiment one is: the quality of ZnO is 15% of an aluminium borate whisker quality, and the volume of ZnO and aluminium borate whisker accounts for 23% of three kinds of raw material volumes, and all the other volumes are aluminium base or the magnesium base.
Embodiment four: the difference of present embodiment and embodiment one is: the quality of ZnO is 6% of an aluminium borate whisker quality, and the volume of ZnO and aluminium borate whisker accounts for 18% of three kinds of raw material volumes, and all the other volumes are aluminium base or the magnesium base.
Embodiment five: the difference of present embodiment and embodiment one is: the quality of ZnO is 25% of an aluminium borate whisker quality, and the volume of ZnO and aluminium borate whisker accounts for 27% of three kinds of raw material volumes, and all the other volumes are aluminium base or the magnesium base.
Embodiment six: present embodiment and embodiment one, two, three, four or fives' difference is: aluminium base or magnesium base is a kind of in fine aluminium, pure magnesium, aluminium alloy or the magnesium alloy.
The specific embodiment seven: present embodiment is carried out ZnAl by following steps
2O
4The preparation of coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material: (one) joins aluminium borate whisker in the colloidal sol of ZnO and is stirred to thickness, and wherein the quality of ZnO is 2～30% of aluminium borate whisker quality; (2) colloidal sol is at 450～700 ℃ of lower roasting 1～3h, then with aqueous dispersion, dry, make the aluminium borate whisker that ZnO applies; (3) aluminium borate whisker that ZnO is applied is made prefabricated section, and at 800～1000 ℃ of lower roasting 1～3h, generates ZnAl
2O
4The aluminium borate whisker blank that coats; (4) extrusion casint namely obtains ZnAl
2O
4Coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material, wherein ZnAl
2O
4The volume of the aluminium borate whisker blank that coats accounts for 15～30% of composite volume, and all the other volumes of 70～85% of composite are aluminium base or the magnesium base.
Present embodiment utilizes ESEM to ZnAl
2O
4The aluminium borate whisker that coats and do not have ZnAl
2O
4The aluminium borate whisker that coats compares observation.Fig. 2 does not have ZnAl
2O
4The scanning electron microscopic observation figure of the aluminium borate whisker that coats, Fig. 3 is ZnAl
2O
4The scanning electron microscopic observation figure of the aluminium borate whisker that coats.Can find ZnAl by observing
2O
4The aluminium borate whisker rough surface that coats, prove aluminium borate whisker the interface be improved significantly.
Embodiment eight: the difference of present embodiment and embodiment seven is: the quality of ZnO is 10～20% of an aluminium borate whisker quality in the step ().
Embodiment nine: the difference of present embodiment and embodiment seven is: the quality of ZnO is 15% of an aluminium borate whisker quality in the step ().
Embodiment ten: the difference of present embodiment and embodiment seven is: ZnO accounts for 4% of aluminium borate whisker quality in the step ().
Embodiment 11: the difference of present embodiment and embodiment seven is: the quality of ZnO is 27% of an aluminium borate whisker quality in the step ().
Embodiment 12: the difference of present embodiment and embodiment seven is: colloidal sol is at 500～650 ℃ of following roasting 1.5～2.5h in the step (two).
Embodiment 13: the difference of present embodiment and embodiment seven is: colloidal sol is at 550 ℃ of following roasting 2h in the step (two).
Embodiment 14: the difference of present embodiment and embodiment seven is: colloidal sol is at 600 ℃ of following roasting 2.5h in the step (two).
Embodiment 15: the difference of present embodiment and embodiment seven is: colloidal sol is at 450 ℃ of following roasting 1h in the step (two).
Embodiment 16: the difference of present embodiment and embodiment seven is: colloidal sol is at 700 ℃ of following roasting 3h in the step (two).
Embodiment 17: the difference of present embodiment and embodiment seven is: step (three) with prefabricated section at 850～950 ℃ of following roasting 1.5～2.5h.
Embodiment 18: the difference of present embodiment and embodiment seven is: step (three) with prefabricated section at 900 ℃ of following roasting 2h.
The specific embodiment 19: the difference of present embodiment and the specific embodiment seven is: ZnAl in the step (four)
2O
4The volume of the aluminium borate whisker blank that coats accounts for 20～25% of composite volume, and all the other volumes of 75～80% of composite are aluminium base or the magnesium base.
The specific embodiment 20: the difference of present embodiment and the specific embodiment seven is: ZnAl in the step (four)
2O
4The volume of the aluminium borate whisker blank that coats accounts for 23% of composite volume, and all the other volumes of 77% of composite are aluminium base or the magnesium base.
The specific embodiment 21: the difference of present embodiment and the specific embodiment seven is: ZnAl in the step (four)
2O
4The volume of the aluminium borate whisker blank that coats accounts for 18% of composite volume, and all the other volumes of 82% of composite are aluminium base or the magnesium base.
The specific embodiment 22: the difference of present embodiment and the specific embodiment seven is: ZnAl in the step (four)
2O
4The volume of the aluminium borate whisker blank that coats accounts for 27% of composite volume, and all the other volumes of 73% of composite are aluminium base or the magnesium base.
Embodiment 23: the difference of present embodiment and embodiment seven is: aluminium base or magnesium base is a kind of in fine aluminium, pure magnesium, aluminium alloy or the magnesium alloy.
The specific embodiment 24: present embodiment prepares ZnAl
2O
4Coating aluminum boric acid crystal whisker reinforcing aluminum base composite material: (one) joins aluminium borate whisker in the colloidal sol of ZnO and is stirred to thickness, and wherein the quality of ZnO is 10% of aluminium borate whisker quality; (2) colloidal sol is at 450～700 ℃ of lower roasting 1～3h, then with aqueous dispersion, dry, make the aluminium borate whisker that ZnO applies; (3) aluminium borate whisker that ZnO is applied is made prefabricated section, and at 800～1000 ℃ of lower roasting 1～3h, generates ZnAl
2O
4The aluminium borate whisker blank that coats; (4) extrusion casint namely obtains ZnAl
2O
4Coating aluminum boric acid crystal whisker reinforcing aluminum base composite material, wherein ZnAl
2O
4The volume of the aluminium borate whisker blank that coats accounts for 20% of composite volume, and all the other volumes of 80% of composite are fine aluminium.
The specific embodiment 25: present embodiment prepares ZnAl
2O
4Coating aluminum boric acid crystal whisker reinforcing aluminum base composite material: (one) joins aluminium borate whisker in the colloidal sol of ZnO and is stirred to thickness, and wherein the quality of ZnO is 20% of aluminium borate whisker quality; (2) colloidal sol is at 450～700 ℃ of lower roasting 1～3h, then with aqueous dispersion, dry, make the aluminium borate whisker that ZnO applies; (3) aluminium borate whisker that ZnO is applied is made prefabricated section, and at 800～1000 ℃ of lower roasting 1～3h, generates ZnAl
2O
4The aluminium borate whisker blank that coats; (4) extrusion casint namely obtains ZnAl
2O
4Coating aluminum boric acid crystal whisker reinforcing aluminum base composite material, wherein ZnAl
2O
4The volume of the aluminium borate whisker blank that coats accounts for 30% of composite volume, and all the other volumes of 70% of composite are aluminium alloy.
The specific embodiment 26: present embodiment prepares ZnAl
2O
4Coated aluminium borate whister strengthens magnesium base composite material: (one) joins aluminium borate whisker in the colloidal sol of ZnO and is stirred to thickness, and wherein the quality of ZnO is 20% of aluminium borate whisker quality; (2) colloidal sol is at 450～700 ℃ of lower roasting 1～3h, then with aqueous dispersion, dry, make the aluminium borate whisker that ZnO applies; (3) aluminium borate whisker that ZnO is applied is made prefabricated section, and at 800～1000 ℃ of lower roasting 1～3h, generates ZnAl
2O
4The aluminium borate whisker blank that coats; (4) extrusion casint namely obtains ZnAl
2O
4Coated aluminium borate whister strengthens magnesium base composite material, wherein ZnAl
2O
4The volume of the aluminium borate whisker blank that coats accounts for 15% of composite volume, and all the other volumes of 85% of composite are pure magnesium.
The specific embodiment 27: present embodiment prepares ZnAl
2O
4Coated aluminium borate whister strengthens magnesium base composite material: (one) joins aluminium borate whisker in the colloidal sol of ZnO and is stirred to thickness, and wherein the quality of ZnO is 5% of aluminium borate whisker quality; (2) colloidal sol is at 450～700 ℃ of lower roasting 1～3h, then with aqueous dispersion, dry, make the aluminium borate whisker that ZnO applies; (3) aluminium borate whisker that ZnO is applied is made prefabricated section, and at 800～1000 ℃ of lower roasting 1～3h, generates ZnAl
2O
4The aluminium borate whisker blank that coats; (4) extrusion casint namely obtains ZnAl
2O
4Coated aluminium borate whister strengthens magnesium base composite material, wherein ZnAl
2O
4The volume of the aluminium borate whisker blank that coats accounts for 25% of composite volume, and all the other volumes of 75% of composite are magnesium alloy.
The specific embodiment 28: present embodiment is to ZnAl
2O
4Coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material carry out Mechanics Performance Testing, and test result enters shown in Figure 1.Curve A represents ZnAl among Fig. 1
2O
4The percentage elongation curve of coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material, curve B represents ZnAl
2O
4The tensile strength curve of coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material.
Claims (8)
1, ZnAl
2O
4Coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material is characterized in that it is made by ZnO, aluminium borate whisker and aluminium base or three kinds of raw materials of magnesium base; Wherein the quality of ZnO is 2～30% of aluminium borate whisker quality, and the volume of ZnO and aluminium borate whisker accounts for 15～30% of three kinds of raw material volumes, and all the other volumes are aluminium base or the magnesium base.
2, ZnAl according to claim 1
2O
4Coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material is characterized in that aluminium base be fine aluminium or aluminium alloy, and the magnesium base is pure magnesium or magnesium alloy.
3, ZnAl
2O
4The preparation method of coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material, it is characterized in that it carries out in the steps below: (one) joins aluminium borate whisker in the colloidal sol of ZnO and is stirred to thickness, and wherein the quality of ZnO is 2～30% of aluminium borate whisker quality; (2) colloidal sol is at 450～700 ℃ of lower roasting 1～3h, then with aqueous dispersion, dry, make the aluminium borate whisker that ZnO applies; (3) aluminium borate whisker that ZnO is applied is made prefabricated section, and at 800～1000 ℃ of lower roasting 1～3h, obtains the aluminium borate whisker surface and coat ZnAl
2O
4Prefabricated section; (4) extrusion casint namely obtains ZnAl
2O
4Coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material, wherein ZnAl
2O
4The volume of the aluminium borate whisker blank that coats accounts for 15～30% of composite volume, and all the other volumes of 70～85% of composite are aluminium base or the magnesium base.
4, ZnAl according to claim 3
2O
4The preparation method of coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material is characterized in that the quality of ZnO in the step () is 10～20% of aluminium borate whisker quality.
5, ZnAl according to claim 3
2O
4The preparation method of coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material is characterized in that colloidal sol is at 500～650 ℃ of lower roasting 1.5～2.5h in the step (two).
6, ZnAl according to claim 3
2O
4The preparation method of coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material is characterized in that in the step (three) with prefabricated section at 850～950 ℃ of lower roasting 1.5～2.5h the prefabricated section that this prefabricated section is made for the aluminium borate whisker that ZnO is applied.
7, ZnAl according to claim 3
2O
4The preparation method of coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material is characterized in that ZnAl in the step (four)
2O
4The volume of the aluminium borate whisker blank that coats accounts for 20～25% of composite volume, and all the other volumes of 75～80% of composite are aluminium base or the magnesium base.
8, according to claim 3 or 7 described ZnAl
2O
4The preparation method of coating aluminum boric acid crystal whisker reinforcing aluminum base or magnesium base composite material is characterized in that aluminium base be fine aluminium or aluminium alloy, and the magnesium base is pure magnesium or magnesium alloy.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101273261A CN100347329C (en) | 2005-12-09 | 2005-12-09 | ZnAl2O4 coated aluminium borate whister reinforced aluminium base or magnesium base composite meterial and its preparation method |
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| CNB2005101273261A CN100347329C (en) | 2005-12-09 | 2005-12-09 | ZnAl2O4 coated aluminium borate whister reinforced aluminium base or magnesium base composite meterial and its preparation method |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705458B (en) * | 2009-11-11 | 2011-07-13 | 青海大学 | Preparation process of modified magnesium borate crystal whisker reinforced magnesium-matrix composite material |
| CN102071373B (en) * | 2011-02-14 | 2012-06-27 | 哈尔滨理工大学 | Method for preparing Cr2O3 coated aluminum borate whisker reinforced aluminum matrix composites |
| CN102296255B (en) * | 2011-09-01 | 2013-01-09 | 哈尔滨理工大学 | Preparation method of low-volume-fraction aluminum borate crystal whisker reinforced aluminum-based composite material |
| CN102433520B (en) * | 2011-12-21 | 2013-04-10 | 哈尔滨工业大学 | ZnWO4-coated aluminum borate whisker-reinforced aluminum matrix composite and preparation method thereof |
| CN103397282B (en) * | 2013-08-13 | 2015-08-19 | 哈尔滨理工大学 | The preparation method of nano zircite coating aluminium borate whisker/aluminum matrix composite |
| CN104233032B (en) * | 2014-08-26 | 2017-03-01 | 盐城市鑫洋电热材料有限公司 | A kind of magnesium base alloy of Mg Cd system enhancement mode and preparation method thereof |
| CN112410688B (en) * | 2020-10-30 | 2022-03-01 | 上海交通大学 | Aluminum borate whisker reinforced rare earth magnesium alloy composite material and preparation method thereof |
| CN116103584A (en) * | 2023-04-13 | 2023-05-12 | 常州市烁源新能源科技有限公司 | Efficient casting aluminum bar for aluminum profile and preparation method thereof |
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| CN1104568A (en) * | 1993-11-24 | 1995-07-05 | 哈尔滨工业大学 | Manufacture of uncontinuously enhanced aluminum based composite material |
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| CN1104568A (en) * | 1993-11-24 | 1995-07-05 | 哈尔滨工业大学 | Manufacture of uncontinuously enhanced aluminum based composite material |
| CN1414132A (en) * | 2002-09-05 | 2003-04-30 | 费维栋 | Brake facing made of magnesium borate crystal whisker and ceramic particle reinforced aluminium base composite material and its preparation process |
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