CN105603234A - Preparation method of mica powder containing titanium-aluminum-based self-repairing composite - Google Patents
Preparation method of mica powder containing titanium-aluminum-based self-repairing composite Download PDFInfo
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- CN105603234A CN105603234A CN201610030921.1A CN201610030921A CN105603234A CN 105603234 A CN105603234 A CN 105603234A CN 201610030921 A CN201610030921 A CN 201610030921A CN 105603234 A CN105603234 A CN 105603234A
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- 239000000843 powder Substances 0.000 title claims abstract description 113
- 239000002131 composite material Substances 0.000 title claims abstract description 56
- 239000010445 mica Substances 0.000 title claims abstract description 51
- 229910052618 mica group Inorganic materials 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 title abstract description 5
- 238000005245 sintering Methods 0.000 claims abstract description 19
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000001238 wet grinding Methods 0.000 claims abstract description 12
- 239000011812 mixed powder Substances 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000001291 vacuum drying Methods 0.000 claims abstract description 6
- 239000000706 filtrate Substances 0.000 claims abstract description 5
- 238000007873 sieving Methods 0.000 claims abstract description 3
- 239000010936 titanium Substances 0.000 claims description 46
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 32
- 239000004411 aluminium Substances 0.000 claims description 32
- 229910052782 aluminium Inorganic materials 0.000 claims description 32
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 32
- 229910052719 titanium Inorganic materials 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 239000011159 matrix material Substances 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000005303 weighing Methods 0.000 abstract 2
- 238000001914 filtration Methods 0.000 abstract 1
- 229910021389 graphene Inorganic materials 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
- 238000005498 polishing Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 229910010038 TiAl Inorganic materials 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000011268 mixed slurry Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241001251094 Formica Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000445 field-emission scanning electron microscopy Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- 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
-
- 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
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0089—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with other, not previously mentioned inorganic compounds as the main non-metallic constituent, e.g. sulfides, glass
-
- 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Abstract
The invention provides a preparation method of a mica powder containing titanium-aluminum-based self-repairing composite. The preparation method includes following steps: 1), weighing Ti powder, Al powder, Nb powder, Cr powder and B powder according to a molar ratio of Ti:Al:Nb:B=48:47:2:2:1, and weighing mica powder according to 5-10wt.% of total mass of mica powder adding amount; 2), mixing composite matrix powder with the mica powder; 3), wet-milling, sieving and washing the above mixture to obtain a mixed suspended solution, filtering the mixed suspended solution to remove filtrate, and vacuum-drying to obtain mixed powder which is pretreated; 4), disposing the mixed powder which is pretreated in a graphene die, adopting a discharging plasma sintering method under vacuum condition, namely sintering to obtain the mica powder containing titanium-aluminum-based self-repairing composite. The composite prepared by the method is high in comprehensive performance, excellent in tribological performance and self-repairing performance, simple in process, easy in control of process parameters, low in cost and short in preparation period.
Description
Technical field
The present invention relates to metal-base composites preparing technical field, relate in particular to a kind of containing the aluminium base selfreparing composite wood of mica powder titaniumThe preparation method of material.
Background technology
Titanium-aluminium alloy density is low, specific strength is high, specific modulus is large, non-oxidizability is good, creep resistance is good, and Toughness is also than potteryCeramic material is good. These good performances make it become and have extensively at the advanced career field such as aerospace field, high-temperature engineThe desirable lightweight structural material of application prospect ([1] Feng Xudong, Yuan Qinglong, Cao Jingjing, Su Zhi pretty .TiAl base alloy research progress [J].Aerospace manufacturing technology, 2009 (3): 35-38; [2] Qu Xuanhui, Huang Baiyun, Lv Haibo, waits .TiAl ordered alloy Review Study [J]. and rareThere are metal material and engineering, 1991, (4): 3-14.).
Along with modern machinery and equipment to high power, high heat load, high pressure and high service life future development, wearing and tearing self-repair technologyHaving become one of main development direction of equipment repair engineering, is also the forward position research contents of tribological field. Utilize wearing and tearing to review one's lessons by oneselfRecovering technology can make part in friction process, realize self-organizing, self adaptation and self-repair function, reaches and increases lubricated, minimizing frictionThe object of wearing and tearing. This Novel lubricating material not only can form the film that one deck is easily sheared at friction surface, reduces friction factor,Self-repair function is played at the cut or the micro-hole place that are directly adsorbed onto part, also helps reduction frictional vibration, reduces noise, savesThe energy, realizes reparation to part friction surface geometry and the optimization of fit clearance. Therefore, be necessary that research and development have moreThe novel Self-repair Composites of self-repair function.
Summary of the invention
The object of the present invention is to provide a kind of preparation method containing the aluminium base Self-repair Composites of mica powder titanium, prepared by the methodComposite has excellent self-healing properties and tribological property, and the method technique is simple, technological parameter is easy to control.
The present invention for solving the problems of the technologies described above taked technical scheme is:
Containing a preparation method for the aluminium base Self-repair Composites of mica powder titanium, it comprises the steps:
1) batching: according to mol ratio=48:47:2:2:1 of Ti:Al:Nb:Cr:B, take Ti powder, Al powder, Nb powder,Cr powder, B powder, be the 5-10wt.% of Ti powder, Al powder, Nb powder, Cr powder, B powder and mica powder gross mass by mica powder addition,Take mica powder;
2) batch mixing: Ti powder, Al powder, Nb powder, Cr powder, B powder are mixed with mica powder;
3) pretreatment: above-mentioned batch mixing is carried out to wet-milling, sieve, after cleaning, obtain mixing suspension solution, then remove by filter filtrate,Vacuum drying obtains the mixed-powder that pretreatment is good;
4) sintering: the mixed-powder that pretreatment is good is placed in graphite jig, then takes discharge plasma sintering under vacuum conditionMethod, obtains described containing the aluminium base Self-repair Composites of mica powder titanium.
In such scheme, described step 3) in wet-milling step be that batch mixing, alcohol and steel ball are placed on to stainless-steel vacuum ball grinderIn, wet-milling in ball mill, the wet-milling time is 3-4 hour.
In such scheme, drum's speed of rotation is 200-300r/min, and ball material mass ratio is 10:1.
In such scheme, in described stainless-steel vacuum ball grinder, vacuum is 10-20Pa.
In such scheme, described step 3) in the step of sieving be to sieve by 300 order stainless steel sieves.
In such scheme, described step 3) vacuum drying vacuum be 0.011-0.021MPa, baking temperature is 60-80 DEG C,Be 5-6 hour drying time.
In such scheme, described step 4) in the interior diameter of graphite jig be 20mm.
In such scheme, described discharge plasma sintering process is: sintering temperature is that 1000-1050 DEG C, heating rate are100-200 DEG C/min, sintering pressure are that 40-50MPa, vacuum are 1 × 10-2-1×10-1Pa, temperature retention time are 3-6min.
The invention has the beneficial effects as follows:
1, preparation is quick, feasibility is high: in preparation process, utilize SPS to carry out the sintering of material, reaction time is short, technique ginsengNumber is stable, can prepare rapidly this composite, and this composite purity is high, has wide temperature range response, good comprehensiveThe characteristics such as performance, and be applicable to scale batch production.
2, preparation process processing step is few, and equipment needed thereby is simple: have raw material sources extensively, price is lower, technique is simple, appearanceManageable feature.
3, avoiding, on the pollution of TiAl based composites particle surface and problem of oxidation basis, adopting SPS to prepare density high,Have Good All-around Property containing mica powder TiAl based composites, can reduce sintering temperature, shorten sintering time, for example closeBecome the low 1000-1050 DEG C of temperature, the short 3-6min of generated time, saves the energy, reduces synthetic cost.
What 4, prepared by the present invention is a kind of novel Self-repair Composites containing mica powder titanium aluminum matrix composite. It is to be by TiAlThe high-performance Self-repair Composites that matrix, reparation design for mica powder mutually.
What 5, prepared by the present invention has good self-healing properties and tribological property containing the aluminium base Self-repair Composites of mica powder titanium.
6, the composite that prepared by the present invention contains repairs interpolation phase mica powder, has shown good repair, has improved materialAntifriction and the anti-wear performance of material, and be easy to processing preparation.
Brief description of the drawings
Fig. 1 is preparation technology's flow chart of the present invention.
Fig. 2 be the embodiment of the present invention 1 make containing the aluminium base Self-repair Composites of mica powder titanium be polishing scratch under 25 DEG C of conditions in temperatureThe electron probe photo on surface.
Fig. 3 be the embodiment of the present invention 1 make containing the aluminium base Self-repair Composites of mica powder titanium be to grind under 200 DEG C of conditions in temperatureThe electron probe photo on trace surface.
Fig. 4 be the embodiment of the present invention 1 make containing the aluminium base Self-repair Composites of mica powder titanium be to grind under 400 DEG C of conditions in temperatureThe electron probe photo on trace surface.
Fig. 5 be the embodiment of the present invention 1 make containing the aluminium base Self-repair Composites of mica powder titanium be to grind under 600 DEG C of conditions in temperatureThe electron probe photo on trace surface.
Fig. 6 is that the embodiment of the present invention 1 is prepared containing the coefficient of friction of the aluminium base Self-repair Composites of mica powder titanium under different temperaturesWith wear rate curve, test condition is: sliding frequency 10Hz, time 40min, friction radius 3mm, load 12N. AdoptHT-1000 high temperature friction and wear experimental machine, according to Unite States Standard ASTMG99-95, friction pair is the Al of diameter 6mm2O3Ball (HV20.5GPa，Ra0.01μm)。
Fig. 7 is that the aluminium base Self-repair Composites of mica powder titanium that contains that the embodiment of the present invention 2 makes is moving under 600 DEG C of conditions in temperatureState coefficient of friction curve.
Fig. 8 be the embodiment of the present invention 2 make containing the aluminium base Self-repair Composites of mica powder titanium be polishing scratch under 600 DEG C of conditions in temperatureThe electron probe photo on surface.
Fig. 9 be the embodiment of the present invention 2 make containing the aluminium base Self-repair Composites of mica powder titanium be polishing scratch under 600 DEG C of conditions in temperatureFracture FESEM photo.
Detailed description of the invention
Below in conjunction with drawings and Examples, further the present invention will be described, but content of the present invention is not only confined to belowEmbodiment.
Embodiment 1:
As shown in Figure 1, a kind of preparation method of the aluminium base Self-repair Composites of titanium containing mica powder, it comprises the steps:
1) taking Ti powder, Al powder, Nb powder, Cr powder and B powder as matrix material, mol ratio=48 according to Ti:Al:Nb:Cr:B:47:2:2:1 batch mixing, takes 5.6457 grams of Ti powder, 3.1157 grams of Al powder, 0.4565 gram of Nb powder, 0.2555 gram of Cr powder and 0.0266Gram B powder, amounts to 9.5 grams, then adds 0.5 gram of mica powder in above-mentioned powder, is prepared burden;
2) above-mentioned batching and steel ball are placed in vacuum steel ball grinder to wet-milling 3 hours on planetary ball mill under low vacuum condition;Wet grinding media is alcohol; Wherein: drum's speed of rotation is that 200r/min, ball material mass ratio are 10:1, vacuum 10Pa;
3) mixed slurry containing steel ball after ball milling is sieved after cleaning by 300 order stainless steel sieves, obtains mixing suspension solution,Mix suspension solution and filter after removal filtrate, vacuum drying (vacuum is 0.011MPa, and temperature is 60 DEG C, and the time is 5 hours),Obtain the mixed-powder that pretreatment is good;
4) dried powder is placed in to the graphite grinding tool that interior diameter is 20mm, then under vacuum condition, carries out plasma discharging burningKnot. Wherein sintering temperature is that 1000 DEG C, heating rate are that 100 DEG C/min, sintering pressure are 40MPa, temperature retention time 3min, trueReciprocal of duty cycle is 1 × 10-2Pa, prepares containing the aluminium base Self-repair Composites of mica powder titanium.
Adopting the Vickers hardness instrument test implementation example 1 prepared hardness containing the aluminium base Self-repair Composites of mica powder titanium is HV1592.2, the actual density of testing this composite according to drainage is 3.71g/cm3. Fig. 2 to Fig. 5 is that embodiment 1 makes containing micaThe aluminium base Self-repair Composites of powder titanium corresponds respectively to the polishing scratch under the condition that probe temperature is 25 DEG C, 200 DEG C, 400 DEG C and 600 DEG CThe electron probe photo on surface, Fig. 2 to Fig. 5 illustrates that this composite worn-out surface does not all have very dark ditch dug with a plow and peels off pit, canTo ensure that it has good tribological property in temperature in 25-600 DEG C of interval, has also shown that this composite has goodSelf-healing properties. In addition, the wear rate of sample can pass through formula (1) (M.Y.Niu, Q.L.Bi, J.Yang, W.M.Liu.TribologicalperformanceofaNi3Almatrixself-lubricatingcompositecoatingtestedfrom25to1000 DEG C of .SurfCoatTechnol, 2012,206 (19-20): 3938-3943.) calculate:
W＝V/PS＝Vρw/PSρw＝Mw/PSρw(1)
In formula: V represents wear volume, P represents load, and S represents sliding distance, ρwRepresent density of material, MwRepresentative wearing and tearingQuality of materials, the unit of W is mm3(Nm)-1。
Fig. 6 be the embodiment of the present invention 1 obtained containing the coefficient of friction of the aluminium base Self-repair Composites of mica powder titanium under different temperatures andWear rate curve, Fig. 6 illustrates that this composite is that 25 DEG C of coefficient of friction and wear rates under condition are respectively 0.47 He in temperature5.31×10-4mm3/ (Nm), the coefficient of friction of 200 DEG C and wear rate are respectively 0.38 and 7.5 × 10-4mm3/ (Nm), 400 DEG C rubWipe coefficient and wear rate and be respectively 0.33 and 6.24 × 10-4mm3/ (Nm), the coefficient of friction of 600 DEG C and wear rate are respectively 0.28 He4.2×10-4mm3/ (Nm), all show outstanding tribological property at 25 DEG C-600 DEG C. Along with the rising of temperature, coefficient of frictionWith wear rate entirety in downward trend.
Embodiment 2:
1) taking Ti powder, Al powder, Nb powder, Cr powder and B powder as matrix material, according to mol ratio=48:47:2:2:1 of Ti:Al:Nb:Cr:BBatch mixing, takes 5.3485 grams of Ti powder, 2.9517 grams of Al powder, 0.4325 gram of Nb powder, 0.2421 gram of Cr powder and 0.0252 gram of B powder, amounts to 9Gram, then add 1 gram of mica powder in above-mentioned powder, prepared burden;
2) above-mentioned batching and steel ball are placed in vacuum steel ball grinder to wet-milling 6 hours on planetary ball mill under low vacuum condition;Wet grinding media is alcohol; Wherein: drum's speed of rotation is that 300r/min, ball material mass ratio are 10:1, vacuum 20Pa;
3) mixed slurry containing steel ball after ball milling is sieved after cleaning by 300 order stainless steel sieves, obtains mixing suspension solution,Mix suspension solution and filter after removal filtrate, vacuum drying (vacuum is 0.021MPa, and temperature is 80 DEG C, and the time is 6 hours),Obtain the mixed-powder that pretreatment is good;
4) dried powder is placed in to the graphite grinding tool that interior diameter is 20mm, then under vacuum condition, carries out plasma discharging burningKnot. Wherein sintering temperature is that 1050 DEG C, heating rate are that 200 DEG C/min, sintering pressure are 50MPa, temperature retention time 6min, trueReciprocal of duty cycle is 1 × 10-1Pa, prepares containing the aluminium base Self-repair Composites of mica powder titanium.
Adopting the Vickers hardness instrument test implementation example 2 prepared hardness containing the aluminium base Self-repair Composites of mica powder titanium is HV1559.6, the actual density of testing this composite according to drainage is 3.58g/cm3. Fig. 7 is that embodiment 2 makes containing mica powder titanium aluminiumBase Self-repair Composites is dynamic friction coefficient curve under 600 DEG C of conditions in temperature, the coefficient of friction of this composite is described comparativelySteadily, numeric ratio approaches 0.4. In addition, calculate the wear rate of this composite that embodiment 2 prepares according to formula (1)Be 3.38 × 10-4mm3/ (Nm). Therefore this composite of preparing has shown outstanding tribological property. Fig. 8 is that embodiment 2 is madeWhat obtain is the electron probe photo of worn-out surface under 600 DEG C of conditions containing the aluminium base Self-repair Composites of mica powder titanium in temperature, and this is describedComposite frictional abrasion surface is more smooth, has generated the comparatively fine and close selfreparing film of one deck, thereby has obtained good tribologyPerformance. Fig. 9 be embodiment 2 prepared containing the aluminium base Self-repair Composites of mica powder titanium be polishing scratch port under 600 DEG C of conditions in temperatureFESEM photo, sees that matrix has covered comparatively smooth selfreparing film above very clearly.
The cited each raw material of the present invention can be realized the present invention, and the bound value of each raw material, interval value can realize thisInvention, bound value and the interval value of technological parameter of the present invention (as temperature, time, vacuum etc.) can be realized thisBright, do not enumerate embodiment at this.
Claims (8)
1. containing a preparation method for the aluminium base Self-repair Composites of mica powder titanium, it is characterized in that, it comprises the steps:
1) batching: according to mol ratio=48:47:2:2:1 of Ti:Al:Nb:Cr:B, take Ti powder, Al powder, Nb powder, Cr powder,B powder, is the 5-10wt.% of Ti powder, Al powder, Nb powder, Cr powder, B powder and mica powder gross mass by mica powder addition, claimsGet mica powder;
2) batch mixing: Ti powder, Al powder, Nb powder, Cr powder, B powder are mixed with mica powder;
3) pretreatment: above-mentioned batch mixing is carried out to wet-milling, sieve, after cleaning, obtain mixing suspension solution, then remove by filter filtrate, trueThe empty dry mixed-powder that pretreatment is good that obtains;
4) sintering: the mixed-powder that pretreatment is good is placed in graphite jig, then takes discharge plasma sintering method under vacuum condition,Obtain described containing the aluminium base Self-repair Composites of mica powder titanium.
2. the preparation method containing the aluminium base Self-repair Composites of mica powder titanium as claimed in claim 1, is characterized in that described step3) the wet-milling step in is that batch mixing, alcohol and steel ball are placed in stainless-steel vacuum ball grinder, and wet-milling in ball mill, when wet-millingBetween be 3-4 hour.
3. the preparation method containing the aluminium base Self-repair Composites of mica powder titanium as claimed in claim 2, is characterized in that, ball mill turnsSpeed is 200-300r/min, and ball material mass ratio is 10:1.
4. the preparation method containing the aluminium base Self-repair Composites of mica powder titanium as claimed in claim 2, is characterized in that, described stainlessIn steel vacuum sphere grinding jar, vacuum is 10-20Pa.
5. the preparation method containing the aluminium base Self-repair Composites of mica powder titanium as claimed in claim 1, is characterized in that described step3) step of sieving in is to sieve by 300 order stainless steel sieves.
6. the preparation method containing the aluminium base Self-repair Composites of mica powder titanium as claimed in claim 1, is characterized in that described step 3)Vacuum drying vacuum be 0.011-0.021MPa, baking temperature is 60-80 DEG C, be 5-6 hour drying time.
7. the preparation method containing the aluminium base Self-repair Composites of mica powder titanium as claimed in claim 1, is characterized in that described step 4)In the interior diameter of graphite jig be 20mm.
8. the preparation method containing the aluminium base Self-repair Composites of mica powder titanium as claimed in claim 1, is characterized in that, described putsElectricity plasma sintering process is: sintering temperature is that 1000-1050 DEG C, heating rate are that 100-200 DEG C/min, sintering pressure are40-50MPa, vacuum are 1 × 10-2-1×10-1Pa, temperature retention time are 3-6min.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106498232A (en) * | 2016-09-30 | 2017-03-15 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of New Nickel aluminium base Self-repair Composites and preparation method thereof |
| CN108285989A (en) * | 2017-12-08 | 2018-07-17 | 安阳工学院 | A kind of Self-repair Composites and preparation method thereof containing Brown Alundum |
| CN108842097A (en) * | 2018-06-25 | 2018-11-20 | 安阳工学院 | A kind of Self-repair Composites and preparation method thereof containing serpentine |
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| CN106498232B (en) * | 2016-09-30 | 2018-01-09 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | A kind of preparation method of nickel aluminium base Self-repair Composites |
| CN108285989A (en) * | 2017-12-08 | 2018-07-17 | 安阳工学院 | A kind of Self-repair Composites and preparation method thereof containing Brown Alundum |
| CN108842097A (en) * | 2018-06-25 | 2018-11-20 | 安阳工学院 | A kind of Self-repair Composites and preparation method thereof containing serpentine |
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