CN1062840C - Iron-aluminum intermetallic compound-aluminum oxide ceramic composite material and preparation thereof - Google Patents
Iron-aluminum intermetallic compound-aluminum oxide ceramic composite material and preparation thereof Download PDFInfo
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- CN1062840C CN1062840C CN98110195A CN98110195A CN1062840C CN 1062840 C CN1062840 C CN 1062840C CN 98110195 A CN98110195 A CN 98110195A CN 98110195 A CN98110195 A CN 98110195A CN 1062840 C CN1062840 C CN 1062840C
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- intermetallic compound
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Abstract
The present invention relates to a Fe / Al intermetallic compound-Al2 O3 ceramic composite material and a preparation technology thereof. The composite material is composed of Fe / Al intermetallic compounds and Al2 O3. The present invention has the technology processes: previously synthetized Fe / Al intermetallic compounds and a Al2 O3 material are directly compounded, so that Fe / Al intermetallic compound base Al2 O3 ceramic composite material and a Al2 O3 ceramic base Fe / Al intermetallic compound composite material are formed. The composite material has the advantages of good mechanical property, high temperature resistance, corrosion resistance and antioxygenic property, and can be used for manufacturing engineering materials, such as cutters, moulds, etc.
Description
The invention belongs to material science, particularly a kind of intermetallic compound and the ceramic matrix material and the preparation technology thereof of matrix each other.
Intermetallic compound has light specific gravity, outstanding advantage such as anti-oxidant, high temperature resistant, becomes the high-temperature structural material that a class has potentiality.Wherein, the Fe/Al base intermetallic compound is except that having between common metal the multiple outstanding performance of compound, anti-oxidant, erosion resistance that it has can match in excellence or beauty with stainless steel, its specific tenacity height, do not contain strategic element again, cost low (having only stainless 1/3rd), thereby and Ti-Al, the Ni-Al series intermetallic compound is compared, and has bigger application prospect.
But, have DO
3The Fe of structure
3Al and B
2The FeAl intermetallic compound of structure, at high temperature over-all properties (intensity, oxidation-resistance, erosion resistance etc.) reduces, and becomes the major obstacle that its engineering is used.The effective way that addresses this problem is exactly to strengthen the Fe/Al intermetallic compound with aluminum oxide, forms the Fe/Al based composite ceramic material.
Alumina-ceramic is a kind of high-temperature structural material of excellence, its intensity height, high temperature resistant, fine corrosion resistance, and cheap and be widely used.But the fragility of alumina-ceramic is its weakness as the structured material maximum.
Intermetallic compound has the characteristic of metallic bond and covalent linkage coexistence, and its use temperature can be between metal superhard alloy and pottery, and its fragility is than metallic substance height, but lower than stupalith.Utilize intermetallic compound toughness to be higher than the characteristic of stupalith, reinforced alumina ceramic forms alumina base Fe/Al intermetallic compound composite material.On the other hand, strengthen intermetallic compound, can obviously improve the mechanical behavior under high temperature of intermetallic compound with high temperature ceramic material.Intermetallic compound and pottery form matrix material remedies the other side with self premium properties defective.
German Patent (German Pat.Application DE4447130.0, filing date December29,1994) has been introduced the Al that contains Fe and FeAl
2O
3Matrix material.It is by with Fe powder, Al powder and Al
2O
3Powder is ball milling in acetone, powder process, moulding, pressureless sintering under 1450～1500 ℃ temperature, preparation contain Fe-Al
2O
3And FeAl-Al
2O
3The matrix material of phase.This material is actually a kind of ceramic-metal composite.There are two aspect problems in its technological process: one, because the fusing point of metal is low, poor with the wettability of pottery, the amount of the metal that can comprise in the ceramic matrix can be restricted; Two, the formation amount of FeAl phase is difficult to control in the matrix material.Because the FeAl in this material is that reaction forms in the sintering process mutually, phase content is the influence of heat-treated process very easily, shows on the macroscopic view it is the unstable properties of material.
The objective of the invention is to overcome the deficiencies in the prior art, a kind of Fe/Al intermetallic compound-Al of high temperature resistant, anti-oxidant, stable performance is provided
2O
3Ceramic composite and preparation technology thereof.
The present invention realizes in the following manner:
Fe/Al intermetallic compound-Al
2O
3Ceramic composite is characterized in that: it is by Fe/Al intermetallic compound and Al
2O
3Two portions are formed, and the weight percent of each integral part (wt%) is: Al
2O
35～95%, Fe/Al base intermetallic compound 5～95%.
Matrix material recited above, its feature are that also Fe/Al base intermetallic compound weight percentages of components (wt%) is:
Al Ce Nb V Mo Cr15.9～22.4 0～1.0 0～1.5 0～1.5 0～2.0 0～5.0
Surplus Ni W TiC WC0～1.5 0～1.5 0～2.0 0～2.0 is Fe.
The processing step for preparing above-mentioned matrix material is:
1) metal Fe powder and Al powder and additive (for example, Ce, V, Cr, Ni etc.) are pressed the accurate weighing of aforementioned weight percent, dry ball milling machinery alloying, and the formation principal crystalline phase is Fe
3The mixture of Al and FeAl;
2) Fe/Al intermetallic compound powder body and Al
2O
3After fine powder was pressed the prescription weighing, ball milling was made grinding medium with dehydrated alcohol together, and slip is dry in vacuum drier, powder process;
3) during powder body material was packed graphite jig into, hot pressed sintering was used H
2Or N
2Make protection gas, firing range is: 1150～1550 ℃, and pressure 10～35MPa.
Because the present invention directly adopts synthetic Fe/Al intermetallic compound and Al in advance
2O
3Ceramic Composite, thus two big serial matrix material, that is: Al can be formed
2O
3Base Fe/Al intermetallic compound composite material and Fe/Al intermetallic compound base Al
2O
3Ceramic composite.The former utilizes the Fe/Al intermetallic compound to improve Al
2O
3The toughness of stupalith, The latter Al
2O
3Stupalith improves hardness, the high temperature resistant and antioxidant property of Fe/Al intermetallic compound.
Provide a most preferred embodiment of the present invention below:
The proportioning of Fe-Al base-material is (wt%): Al 28, and Fe 71, and Mo 1.The proportioning of matrix material is (wt%): Fe-Al base-material 30, aluminum oxide fine powder 70.
At first, use high speed ball mill ball milling 20 hours in the accurate weighing of the ratio of Fe-Al base-material.Obtain Fe-Al intermetallic compound base material.
Ratio batching in matrix material added the dehydrated alcohol ball milling 2 hours; Slurry is dry in vacuum drying oven; Powder process.
Powder is packed in the graphite jig, and sintering in the gas-protecting sintering stove, shielding gas are H
2, 1360 ℃ of firing temperatures, pressure 30MPa, heat-insulation pressure keeping 15 minutes.Make alumina base Fe-Al intermetallic compound ceramic composite.
The salient features of the prepared material of the present invention can reach: HRA90～92, bending strength 700～900MPa, fracture toughness property K
IC6～8MNm
-3/2Illustrate:
Outstanding feature of the present invention is to have adopted pre-synthetic Fe/Al intermetallic compound and Al
2O
3Form matrix material.The Fe/Al intermetallic compound is synthetic in advance by high-energy ball milling machinery alloying, also can obtain in conjunction with the thermal treatment process under the atmosphere protection by mechanical alloying.Thermal treatment temp is: 400～750 ℃.
Matrix material of the present invention also can adopt cold pressing, cold isostatic compaction and non-pressure sintering technology.The sintering of matrix material removes uses H
2, N
2Outside the protection, also can in vacuum oven, carry out.
The principal crystalline phase of matrix material of the present invention is: α-Al
2O
3, Fe
3Al and FeAl.
A small amount of additive Ce of the present invention, V, Mo, Cr, Ni, W, TiC, WC, Nb etc. can add separately, also can compoundly add.Use Al of the present invention
2O
3Base Fe/Al intermetallic compound composite material can be used as engineering materialss such as cutter, mould.
Claims (3)
1.Fe/Al intermetallic compound-Al
2O
3Ceramic composite is characterized in that: it is by Fe/Al intermetallic compound and Al
2O
3Two portions are formed, and the weight percent of each integral part (wt%) is: Al
2O
35～95%, Fe/Al base intermetallic compound 5～95%.
2. Fe/Al intermetallic compound-Al according to claim 1
2O
3Ceramic composite, its feature are that also Fe/Al base intermetallic compound weight percentages of components (wt%) is:
Al?15.9～22.4
Ce?0～1.0
Nb?0～1.5
V 0～1.5
Mo?0～2.0
Cr?0～5.0
Ni?0～1.5
W 0～1.5
TiC?0～2.0
WC?0～2.0
Surplus is Fe.
3. one kind prepares claim 1 or 2 described Fe/Al intermetallic compound-Al
2O
3The processing step of ceramic composite is:
1) metal Fe powder and Al powder and additive are pressed the accurate weighing of the described weight percent of claim 2, dry ball milling machinery alloying, and the formation principal crystalline phase is Fe
3The mixture of Al and FeAl;
2) Fe/Al intermetallic compound powder body and Al
2O
3After fine powder was pressed the prescription weighing, ball milling was made grinding medium with dehydrated alcohol together, and slip is dry in vacuum drier, powder process;
3) during powder body material was packed graphite jig into, hot pressed sintering was used H
2Or N
2Make protection gas, firing range is: 1150～1550 ℃, and pressure 10～35MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98110195A CN1062840C (en) | 1998-05-11 | 1998-05-11 | Iron-aluminum intermetallic compound-aluminum oxide ceramic composite material and preparation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98110195A CN1062840C (en) | 1998-05-11 | 1998-05-11 | Iron-aluminum intermetallic compound-aluminum oxide ceramic composite material and preparation thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1210097A CN1210097A (en) | 1999-03-10 |
| CN1062840C true CN1062840C (en) | 2001-03-07 |
Family
ID=5220267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98110195A Expired - Fee Related CN1062840C (en) | 1998-05-11 | 1998-05-11 | Iron-aluminum intermetallic compound-aluminum oxide ceramic composite material and preparation thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1062840C (en) |
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|---|---|---|---|---|
| CN1302139C (en) * | 2005-03-02 | 2007-02-28 | 山东大学 | Ferro-trialunminum intermetallic compound and carbon nanotube composites and method for preparing same |
| CN1325431C (en) * | 2005-10-18 | 2007-07-11 | 中国海洋大学 | Gel molding-injection base from high-strength ceramic composite materials and shaping method thereof |
| CN101525716B (en) * | 2009-04-21 | 2011-04-20 | 合肥工业大学 | Iron aluminide intermetallic compound-titanium diboride composite material and preparation method thereof |
| CN102249682B (en) * | 2011-05-16 | 2013-03-06 | 山东交通学院 | Titanium carbide ceramic composite material reinforced with ferrum and aluminium intermetallic compound and preparation method thereof |
| CN103173675A (en) * | 2011-12-23 | 2013-06-26 | 中国科学院兰州化学物理研究所 | Preparation method of ferrum-aluminum titanium carbide composite material |
| CN102976614A (en) * | 2012-12-14 | 2013-03-20 | 中国科学院金属研究所 | Low-cost glass enamel powder for stainless steel |
| CN103753409B (en) * | 2014-01-02 | 2016-04-06 | 洛阳鹏飞耐磨材料股份有限公司 | A kind of preparation method of vertical mill metal matrix ceramic composites mill |
| CN103820691B (en) * | 2014-02-27 | 2015-11-11 | 西安石油大学 | A kind of normal pressure-sintered preparation method of FeAl/TiC matrix material |
| CN105803291A (en) * | 2016-03-17 | 2016-07-27 | 合肥晨煦信息科技有限公司 | Lightweight metal compound material |
| CN107267871B (en) * | 2017-05-12 | 2019-07-02 | 江苏金基特钢有限公司 | A kind of hybrid in situ particle reinforced iron matrix composites and preparation method thereof |
| CN107267846B (en) * | 2017-05-12 | 2019-07-26 | 江苏金基特钢有限公司 | A kind of Al2O3The preparation method of particle reinforced iron matrix composites |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078710A (en) * | 1992-05-14 | 1993-11-24 | 罗伯特-博希股份公司 | The agglomerating alumina article |
| DE4447130A1 (en) * | 1994-12-29 | 1996-07-04 | Nils Claussen | Production of an aluminum-containing ceramic molded body |
| CN1165124A (en) * | 1996-02-13 | 1997-11-19 | 尼卡特株式会社 | Abradability aluminium oxide ceramics and its manufacture method |
-
1998
- 1998-05-11 CN CN98110195A patent/CN1062840C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078710A (en) * | 1992-05-14 | 1993-11-24 | 罗伯特-博希股份公司 | The agglomerating alumina article |
| DE4447130A1 (en) * | 1994-12-29 | 1996-07-04 | Nils Claussen | Production of an aluminum-containing ceramic molded body |
| CN1165124A (en) * | 1996-02-13 | 1997-11-19 | 尼卡特株式会社 | Abradability aluminium oxide ceramics and its manufacture method |
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| Publication number | Publication date |
|---|---|
| CN1210097A (en) | 1999-03-10 |
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| CB02 | Change of applicant information |
Co-applicant after: Shandong Jiuyang industry Limited by Share Ltd |
|
| CB03 | Change of inventor or designer information |
Inventor after: Yin Yansheng Inventor after: Zhang Yujun Inventor after: Sun Kangning Inventor after: Meng Zhaomin Inventor after: Yin Yanli Inventor before: Yin Yansheng Inventor before: Zhang Yujun Inventor before: Sun Kangning |
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Free format text: CORRECT: INVENTOR; FROM: YIN YANSHENG; ZHANG YUJUN; SUN KANGNING TO: YIN YANSHENG; ZHANG YUJUN; SUNKANGNING; MENG ZHAOMIN; YIN YANLI |
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