AU2021100445A4 - A high-throughput method for preparing high volume fraction aluminum matrix composite by pressureless infiltration - Google Patents
A high-throughput method for preparing high volume fraction aluminum matrix composite by pressureless infiltration Download PDFInfo
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- AU2021100445A4 AU2021100445A4 AU2021100445A AU2021100445A AU2021100445A4 AU 2021100445 A4 AU2021100445 A4 AU 2021100445A4 AU 2021100445 A AU2021100445 A AU 2021100445A AU 2021100445 A AU2021100445 A AU 2021100445A AU 2021100445 A4 AU2021100445 A4 AU 2021100445A4
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- aluminum matrix
- volume fraction
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
- C22C21/04—Modified aluminium-silicon alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/004—Filling molds with powder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0408—Light metal alloys
- C22C1/0416—Aluminium-based alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
- C22C1/1057—Reactive infiltration
Abstract
The invention discloses a high-throughput method for preparing high volume fraction
aluminum matrix composite by pressureless infiltration. The aluminum matrix composites can
be efficiently prepared by adding ceramic powder and aluminum alloy into the grooves of the
multi-unit mould and then heating the mould. The appropriate mould can be designed
according to the actual needs in order to achieve the high-throughput preparation of a variety
of high volume fraction aluminum matrix composites by pressureless infiltration. For the high
throughput preparation of aluminum matrix composite, it can prepare a large number of multi
system aluminum matrix composites in a single batch and in the same furnace, which can
achieve the rapid selection of composite system and significantly reduce the research and
development (R&D) cost and cycle time. It can effectively promote the rapid development of
the R&D model of aluminum matrix composite and its engineering application in aerospace,
mechatronics, transportation and other fields.
1/2
Figure 1. The 15 x 15 array graphite mould with rectangular grooves used in the high
throughput experiment in Example 1
Figure 2. The completion status of pressureless infiltration in Example 1
Description
1/2
Figure 1. The 15 x 15 array graphite mould with rectangular grooves used in the high throughput experiment in Example 1
Figure 2. The completion status of pressureless infiltration in Example 1
A high-throughput method for preparing high volume fraction aluminum matrix
composite by pressureless infiltration
[01] The invention relates to the field of metal matrix composite, in particular to a high-throughput method for preparing high volume fraction aluminum matrix composite by pressureless infiltration.
[02] The rapid development of China's aerospace technology has put forward new requirements for the research and development of lightweight, high-strength, multi-functional and highly reliable new materials in terms of multi-species, high performance and rapid response. Metal matrix composites are new materials having combinations of the best properties of the matrix alloys and reinforcement phase, such as high specific strength, specific stiffness, reliability and high temperature resistance and many other excellent properties. Thereinto, the reinforcement phase can be incorporated directly or by in-situ precipitation. One such is high volume fraction aluminum matrix composite, which can meet the harsh service requirements in aerospace and other fields and have a wide range of application prospects. Compared with powder metallurgy, pressure infiltration and stirring casting processes, pressureless infiltration method has the advantages of simple process, easy control of particle distribution, low residual stress and good dimensional stability of billet. Therefore, it is one of the ideal methods for preparing high volume fraction aluminum matrix composites.
[03] However, the current pressureless infiltration technology has the disadvantages of long R&D cycle time and high preparation cost. Since the property of aluminum matrix composites is influenced by many factors (e.g. characteristic, type and volume fraction of the reinforcement phase, composition of the matrix alloy and interface characteristic), the current case-by-case research method cannot meet the special requirements of materials used for high-end equipment, such as multiple varieties, small batches, personalization and rapid development. The potential performance of the composite is also far from being fully exploited. In recent years, the thought of material genetic engineering, which aims at halving the R&D cost and cycle time, has provided a new scheme and a new model for the popularization and application of metal matrix composites in the aerospace field. The idea is especially suitable for the rapid development of aluminum matrix composite with the characteristic of multiple varieties and small batches. However, at present, several high throughput preparation technologies developed for bulk alloy samples, such as "jet printing" synthesis method and multi-junction diffusion method, cannot be used to prepare aluminum matrix composites by pressureless infiltration. Therefore, it is urgent to develop a high-throughput preparation technology suitable for aluminum matrix composites by pressureless infiltration.
[04] The invention provides a high-throughput method for preparing high volume fraction aluminum matrix composite by pressureless infiltration. The high throughput preparation method relates to a pressureless infiltration preparation process, which can perform a large number of experiments in a relatively short time. The volume fraction of ceramic powder in the composites is in the range of 40%~60%. Compared with the traditional "one-by-one" experimental R&D model, this method can effectively get rid of the current dilemma of long R&D cycle time of preparing high volume fraction aluminum matrix composites by pressureless infiltration, and can also design suitable multi-unit mould according to actual needs for the high-throughput preparation of various series of aluminum matrix composites by pressureless infiltration, which can achieve the rapid selection of composite system (e.g. the kinds and composition of the alloying element, type of reinforcement phase), effectively shorten the R&D cycle time and reduce the R&D cost.
[05] To achieve the above purpose, the invention provides the following technical scheme:
[06] The high-throughput method for preparing high volume fraction aluminum matrix composite material by pressureless infiltration comprises the following steps: ceramic powder and aluminum alloy are added into the groove of the multi-unit mould, and then the materials are heated so as to obtain high volume fraction aluminum matrix composites.
[07] Preferably, the ceramic powder is one of A1203, SiC and diamond powder.
[08] Further, the size of ceramic powder is in the range of 20~150 m.
[09] The surface oxide layer of aluminum alloys should be removed before use.
[010] Furthermore, the grooves of the multi-unit mould are arranged in an array.
[011] The groove of the multi-unit die is rectangular.
[012] The heating process includes the following procedures: in the inert atmosphere, heating the materials to 850~1000 °C with the heating rate of 5-15 C/ min and holding for 2-4h.
[013] The inert gas in the inert atmosphere is argon or nitrogen.
[014] More preferably, graphite boxes are made according to the dimensions of the grooves of the multi-unit mould and placed into the grooves of the multi-unit mould before the heating process. Then, the ceramic powder and aluminum alloy are filled in the graphite box one by one.
[015] The high-throughput method for preparing high volume fraction aluminum matrix composite by pressureless infiltration according to claim 1 is characterized in that the ratio of aluminum alloy loading height to ceramic powder loading height is (1.5 - 3): 1.
[016] Beneficial effects:
[017] The present invention enables the high-throughput preparation of multiple series of high volume fraction aluminum matrix composites with the feature of different systems and different characteristics of the reinforcing phase (e.g. size, distribution and morphology) in a single batch and in the same furnace by the design of material system and multi-unit mould. The appropriate mould can be designed according to the actual needs in order to achieve the high-throughput preparation of a variety of high volume fraction aluminum-matrix composites by pressureless infiltration. For the high throughput preparation of aluminum matrix composite, it can prepare a large number of multi-system aluminum matrix composites in a single batch and in the same furnace, which can achieve the rapid selection of composite system and significantly reduce the
R&D cost and cycle time. The method can effectively promote the rapid development of the R&D model of aluminum-matrix composite and its engineering application in aerospace, mechatronics, transportation and other fields.
[018] The high-throughput method for preparing high volume fraction aluminum matrix composite by pressureless infiltration can ensure the consistency of the processing parameters of sample preparation, avoiding the errors caused by artificial or machine factors. Therefore, it can realize accurate and rapid selection of material system of high volume fraction aluminum matrix composite, and effectively reduce the R&D cycle time and cost.
[019] Fig. 1 is the 15 x 15 array graphite mould with rectangular grooves in Example 1.
[020] Fig. 2 is the completion status of pressureless infiltration experiment in Example 1.
[021] Fig. 3 is a part of the prepared A203/Al composites in Example 1.
[022] Fig. 4 shows the microstructure of the A203/Al composites with different diameters of A1203 powder in Example 1. The average diameters of A1203 particles in Figure 4(a-d) are 37 m, 54 m, 77 m and 90 m, respectively.
[023] A number of exemplary examples of the present invention are described in detail in conjunction with the accompanying drawings, which shall not be considered a limitation of the present invention but shall be understood as a more detailed description of some aspects, characteristics and examples of the present invention. It should be understood that the terms described in the present invention are only intended to describe a particular embodiment and are not intended to limit the invention.
[024] In addition, for a numerical range in the invention, it shall be understood that each intermediate value between the upper and lower limits of the range is also specifically disclosed. An intermediate value within any statement value or statement range and each smaller range between any other statement value or intermediate value within the range are also included in the present invention. The upper and lower limits of these smaller ranges can be included or excluded independently.
[025] Unless otherwise stated, all technical and scientific terms used in this article have the same meaning as is generally understood by ordinary technicians in the field described in the present invention. Although the present invention only describes preferred methods and materials, any method and materials similar to or equivalent to those described in this article may also be used in the implementation or test of the present invention.
[026] The terms " including", " comprising", "having ","containing ", etc. used in this article are open terms, meaning including but not limited to.
[027] Example 1
[028] The aluminum matrix composite with high volume fraction was prepared by pressureless infiltration and high-throughput methods, and the specific steps were as follows:
[029] (1) Raw material preparation: A1203 powders, with average diameters of 37[tm, 54[m, 77m and 90km, respectively, were selected, cleaned for 5 times by deionized water and mechanical stirring, and then dried at 150°C for later use; 2-series, -series, 6-series and 7-series standard aluminum alloys with the surface being treated by physical grinding were selected.
[030] (2) A 15x15 array of rectangular groove graphite mould was designed. Graphite paper was cut and folded as the boxes with the size of 20mmx20mmx40mm according to the size and number of rectangular grooves.
[031] (3) The required A1203 powder was weighed according to the size of the folded graphite box and loaded into the corresponding boxes with 37m A1203 powder in rows 1-4, 54m A1203 powder in rows 5-8, 77m A1203 powder in rows 912 and km A1203 powder in rows 13-15 of the 15x15 arrayed graphite mould. The aluminum alloys of the required size were placed on top of the A1203 powder, with 2024 aluminum alloy in rows 1, 5, 9 and 13, 5056 aluminum alloy in rows 2, 6, 10 and
14, 6061 aluminum alloy in rows 3, 7, 11 and 15, and 7075 aluminum alloy in rows 4, 8 and 12 of the 15x15 arrayed graphite mould. The cross section of aluminum alloys is slightly smaller than that of the graphite box, and the height of the alloys is approximately 20 mm.
[032] (4) Under the protection of argon atmosphere, the temperature was raised to 950 °C at a heating rate of 10 °C / min. The mould was holding for 3 h at 950 °C and then taken out of the furnace. After air cooling, the expected high volume fraction Al matrix composites can be collected in turn by removing the surface graphite paper of the as-received composites, wherein the volume fraction of alumina powder was expected to be in the range of 55% ~60%.
[033] Fig. 1 is the 15x15 array graphite mould with rectangular groove used in the high-throughput experiment of pressureless infiltration in Example 1.
[034] Fig. 2 is the completion status of pressureless infiltration experiment in Example 1.
[035] Fig. 3 is a part of the prepared A203/Al composites in Example 1.
[036] Fig. 4 is the microstructure of the A1203/Al composites with different diameters of A1203powder in Example 1. The average diameters of A203powder in Figure 4(a-d) are 37 m, 54 m, 77 m and 90 m, respectively. The volume fractions of A1203 powder in Figure 4(ad) are about 59.00%, 57.69%, 57.40% and 56.81%, respectively.
[037] Example 2
[038] In this example, the aluminum matrix composite with high volume fraction was prepared by pressureless infiltration and high-throughput method, and the specific steps were as follows:
[039] (1) Raw material preparation: SiC powders, with average diameters of
[tm, 68m and 125m were selected, cleaned for 5 times by deionized water and mechanical stirring, and then dried at 150°C for later use; Al-Mg-Si ternary alloy (Mg mass fraction of 3%~9%, Si mass fraction of 10%~18%, and the rest being Al) was selected, with the surfaces of which being treated by physical grinding method.
[040] (2) A 9x9 array of rectangular groove graphite mould was designed according to different systems of aluminum matrix composites. Graphite paper was cut and folded as the boxes with the size of 80mmx80mmx60mm according to the size and number of rectangular grooves.
[041] (3) The required SiC powder was weighed according to the size of the folded graphite box and loaded into the corresponding boxes with 20 m SiC powder in rows 1-3, 68m SiC powder in rows 4-6, 125tm SiC powder in rows 7-9 of the 12 x 12 arrayed graphite mould. The loading height of the SiC powder was approximately mm. The aluminum alloys of the required size were machined and placed on top of the SiC powder. Al-Mg-Si alloys with Mg and Si mass fractions of 3% and 9% were placed in rows 1, 4 and 7. Al-Mg-Si alloys with Mg and Si mass fractions of 6% and 14% were placed in rows 2, 5 and 8. Al-Mg-Si alloys with Mg and Si mass fractions of 9% and 18% were placed in rows 3, 6 and 9. The cross section of aluminum alloys is slightly smaller than that of the graphite box, and the height of the alloys is approximately 30 mm.
[042] (4) Under the protection of nitrogen, the temperature was raised to 850 °C at a heating rate of 5°C / min. The mould was holding for 4h at 850 °C and then taken out of the furnace. After air cooling, the expected high volume fraction Al-matrix composites can be collected in turn by removing the surface graphite paper of the as received composites, wherein the volume fraction of silicon carbide was expected to be in the range of 5 0 % ~ 60%.
[043] Example 3
[044] The aluminum matrix composite with high volume fraction was prepared by pressureless infiltration and high-throughput methods, and the specific steps were as follows:
[045] (1) Raw material preparation: diamond powders, with average diameters of 69[tm, 99[m, 130jm and 150jm, respectively, were selected, cleaned for 5 times by deionized water and mechanical stirring, and then dried at 150°C for later use; Al-Mg Si ternary alloy (Mg mass fraction of 5%~9%, Si mass fraction of 9%~15%, and the rest of Al) was selected, with the surfaces of which being treated by physical grinding method.
[046] (2) A 12x12 array of rectangular groove graphite mould was designed according to different systems of aluminum matrix composites. Graphite paper was cut and folded as the boxes with the size of 50mmx5Ommx70mm according to the size and number of rectangular grooves.
[047] (3) The required diamond powder was weighed according to the size of the folded graphite box and loaded into the corresponding boxes with 69m diamond powder in rows 1-3, 99m diamond powder in rows 4-6, 130m diamond powder in rows 7-9, 150m diamond powder in rows 10~12 of the 12x12 arrayed graphite mould. The loading height of diamond powder was about 15 mm, and the aluminum alloys with the required size were machined and placed on top of the diamond powder. Al Mg-Si alloys with Mg and Si mass fraction of 5% and 9% were placed in rows 1, 4, 7 and 10. Al-Mg-Si alloys with Mg and Si mass fraction of 7% and 12% were placed in rows 2, 5, 8 and 11. Al-Mg-Si alloys with Mg and Si mass fraction of 9% and 15% were placed in rows 3, 6, 9 and 12. The cross section of aluminum alloys is slightly smaller than that of the graphite box, and the height of the alloys is approximately 45 mm.
[048] (4) Under the protection of nitrogen, the temperature was increased to 1000 °C at a rate of 15°C/min. The mould was holding for 2h at 1000 °C and then taken out of the furnace. After air cooling, the expected high volume fraction Al-matrix composites can be collected in turn by removing the surface graphite paper of the as received composites, wherein the volume fraction of diamond was expected to be in the range of 40%-55%.
[049] As mentioned above, the described high-throughput preparation method is suitable for the pressureless infiltration preparation process. Compared with the traditional "one-by-one" experimental R&D model, this method can perform a large number of experiments in a relatively short time, which can not only achieve the rapid selection of composite system, but also effectively shorten the R&D cycle time and reduce the R&D cost.
[050] Although the invention has been described with reference to specific examples, it will be appreciated by those skilled in the art that the invention may be embodied in many other forms, in keeping with the broad principles and the spirit of the invention described herein.
[051] The present invention and the described embodiments specifically include the best method known to the applicant of performing the invention. The present invention and the described preferred embodiments specifically include at least one feature that is industrially applicable
Claims (10)
1. The high-throughput method for preparing high volume fraction aluminum
matrix composite by pressureless infiltration comprises the following steps: ceramic
powder and aluminum alloy are added into the groove of the multi-unit mould, and then
the materials are heated so as to obtain high volume fraction aluminum matrix
composites.
2. The high-throughput method for preparing high volume fraction aluminum
matrix composite by pressureless infiltration according to claim 1 is characterized in
that the ceramic powder is one of A1203, SiC and diamond powder.
3. The high-throughput method for preparing high volume fraction aluminum
matrix composite by pressureless infiltration according to claim 1 is characterized in
that the size of ceramic powder is 20 ~ 150 [m.
4. The high-throughput method for preparing high volume fraction aluminum
matrix composite by pressureless infiltration according to claim 1 is characterized in
that the surface oxide layer of aluminum alloy should be removed before use.
5. The high-throughput method for preparing high volume fraction aluminum
matrix composite by pressureless infiltration according to claim 1 is characterized in
that the grooves of the multi-unit mould are arranged in an array.
6. The high-throughput method for preparing high volume fraction aluminum
matrix composite by pressureless infiltration according to claim 1 is characterized in
that the groove of the multi-unit die is rectangular.
7. The high-throughput method for preparing high volume fraction aluminum
matrix composite by pressureless infiltration according to claim 1 is characterized in that the heating treatment includes the following contents: in the inert atmosphere, heating the materials to 850-1000 °C at the heating rate of 5~15 °C / min, and holding for 2~4h.
8. The high-throughput method for preparing high volume fraction aluminum
matrix composite by pressureless infiltration according to claim 7 is characterized in
that the inert gas in the inert atmosphere is argon or nitrogen.
9. The high-throughput method for preparing high volume fraction aluminum
matrix composite by pressureless infiltration according to claim 1 is characterized in
that graphite boxes are made according to the dimensions of the grooves of the multi
unit mould and placed into the grooves of the multi-unit mould before the heating
process. Then the ceramic powder and aluminum alloy are filled in the graphite box
one by one.
10. The high-throughput method for preparing high volume fraction aluminum
matrix composite by pressureless infiltration according to claim 1 is characterized in
that the ratio of aluminum alloy loading height to ceramic powder loading height is (1.5
~ 3): 1.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113564404A (en) * | 2021-07-13 | 2021-10-29 | 珠海亿特立新材料有限公司 | Aluminum-based graphite particle reinforced composite material and method and heat dissipation adaptor |
| CN116393677A (en) * | 2023-04-07 | 2023-07-07 | 哈尔滨工业大学 | Method for preparing diamond/aluminum composite material by high-flux near-net forming |
| CN116408435A (en) * | 2023-04-12 | 2023-07-11 | 哈尔滨工业大学 | Method for preparing diamond/metal composite material in high flux |
-
2021
- 2021-01-24 AU AU2021100445A patent/AU2021100445A4/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113564404A (en) * | 2021-07-13 | 2021-10-29 | 珠海亿特立新材料有限公司 | Aluminum-based graphite particle reinforced composite material and method and heat dissipation adaptor |
| CN116393677A (en) * | 2023-04-07 | 2023-07-07 | 哈尔滨工业大学 | Method for preparing diamond/aluminum composite material by high-flux near-net forming |
| CN116393677B (en) * | 2023-04-07 | 2023-11-03 | 哈尔滨工业大学 | Method for preparing diamond/aluminum composite material by high-flux near-net forming |
| CN116408435A (en) * | 2023-04-12 | 2023-07-11 | 哈尔滨工业大学 | Method for preparing diamond/metal composite material in high flux |
| CN116408435B (en) * | 2023-04-12 | 2023-11-03 | 哈尔滨工业大学 | Method for preparing diamond/metal composite material in high flux |
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