CN108126706A - A kind of boric diamond synthesis catalytic powder, preparation method and application - Google Patents
A kind of boric diamond synthesis catalytic powder, preparation method and application Download PDFInfo
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- CN108126706A CN108126706A CN201711462283.1A CN201711462283A CN108126706A CN 108126706 A CN108126706 A CN 108126706A CN 201711462283 A CN201711462283 A CN 201711462283A CN 108126706 A CN108126706 A CN 108126706A
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- 239000000843 powder Substances 0.000 title claims abstract description 65
- 239000010432 diamond Substances 0.000 title claims abstract description 50
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 49
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 41
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 27
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000011572 manganese Substances 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 229910052796 boron Inorganic materials 0.000 claims abstract description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 5
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims abstract description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 13
- 239000010439 graphite Substances 0.000 claims description 13
- 229910045601 alloy Inorganic materials 0.000 claims description 12
- 239000000956 alloy Substances 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 12
- 229910000838 Al alloy Inorganic materials 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 229910052748 manganese Inorganic materials 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 5
- 238000003723 Smelting Methods 0.000 claims description 2
- 206010013786 Dry skin Diseases 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 239000011435 rock Substances 0.000 claims 1
- 239000003054 catalyst Substances 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 10
- 230000008901 benefit Effects 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000002194 synthesizing effect Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- ZONKHNTWFKLIRF-UHFFFAOYSA-N [C].[B].[Fe].[Ni] Chemical class [C].[B].[Fe].[Ni] ZONKHNTWFKLIRF-UHFFFAOYSA-N 0.000 description 1
- 238000005271 boronizing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 229910001751 gemstone Inorganic materials 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009766 low-temperature sintering Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/06—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies
-
- B01J35/40—
-
- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/068—Flake-like particles
-
- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- 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
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/023—Alloys based on nickel
-
- 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
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/005—Alloys based on nickel or cobalt with Manganese as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2203/00—Processes utilising sub- or super atmospheric pressure
- B01J2203/06—High pressure synthesis
- B01J2203/065—Composition of the material produced
- B01J2203/0655—Diamond
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2203/00—Processes utilising sub- or super atmospheric pressure
- B01J2203/06—High pressure synthesis
- B01J2203/0675—Structural or physico-chemical features of the materials processed
- B01J2203/068—Crystal growth
-
- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/048—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by pulverising a quenched ribbon
Abstract
The present invention relates to a kind of boric diamond synthesis catalytic powder, preparation method and application, the composition of the powder is Ni1‑x‑y‑ zMnxFeyBz, wherein 40≤x≤45,4.9≤y≤5.88,0.1≤z≤0.12；The catalytic powder is sheet-like morphology, and granularity is less than or equal to 100 mesh.The ferro-boron and carbon granules that the catalytic powder is 2% using pure nickel, pure manganese, boracic get rid of band method as raw material, using chilling and prepare.Catalytic powder of the present invention is applied to prepare polycrystalline boric diamond.The catalytic powder recovery rate prepared using the method for the present invention is high, and, high catalytic efficiency big with graphite powder contact area can reduce synthesis pressure, improve the yield of synthesis boric diamond；The oxidation resistance temperature of the diamond of catalyst powder production using the present invention increases, and self-sharpening is good, and with high-wearing feature.
Description
Technical field
The invention belongs to powder preparing technical field, prepared by more particularly to a kind of boric diamond synthesis catalytic powder
Method and its application.
Background technology
Boric diamond belongs to II b type diamonds, has good wearability, inoxidizability and thermal stability and excellent
Semiconducting behavior is suitable for being produced on the semiconductor components and devices used under the mal-conditions such as high pressure, high temperature, high-intensity magnetic field.About containing
The synthesis of boron diamond, domestic and international China superhard material Industry have carried out many researchs, and critical issue is how boron element adds in, mainly
Raw material when being around diamond synthesizing are that selection boron-containing catalyst or borated graphite conduct a research.Due to being prepared in catalyst
The alloy or compound that boron element or addition boracic are added in journey are easier, therefore are prepared boric diamond at present and mainly selected
Boron-containing catalyst is selected to realize, as borated graphite by then passing through boronizing method, it is not easy to realize the uniformity of boron element infiltration,
The diamond coloration synthesized is uneven.The gloomy grades of Shandong University Li Mu application No. is CN200510042572.7, denominations of invention
Patent application for " for synthesizing iron-nickel-boron-carbon series catalysts of boron doped diamond single crystal and preparation method thereof " discloses one
Kind is mixed using elemental powders, is rolled into strip, and after carrying out low-temperature sintering, finish rolling, punching, shaping, cleaning, sheet is made
The method of FeNiBC series catalysts, what this method was prepared is a kind of flake shape catalyst being non-fully densified.Beijing is safe and sound
The Tian Junhui of Gang Yan groups etc. application No. is CN201210505526.6, the entitled " catalyst of synthesis boric diamond
And preparation method thereof " patent application disclose it is a kind of using atomization technology, by add in boron supplying agent (pure boron, containing boronation
Close object or alloy) method for preparing catalytic powder, catalytic powder prepared by this method is Fe base catalyst, and catalyst pattern is drops
Or it is irregular subsphaeroidal, due to this method prepare catalytic powder pattern the characteristics of, be mixed with synthesis column with graphite powder
When have it is more highly difficult.
Powder technology synthesis of artificial diamond selected carbon source is squamaceous graphite powder on microscopic appearance, therewith
The catalytic powder of mixing is prepared using atomization, and powder shape is subsphaeroidal or drops mostly, and conjunction is mixed in the two
During Cheng Zhu, subsphaeroidal particle and squamaceous graphite can not completely attach to, in pressing process consistency it is not high and
Easily layering, therefore, adequately must be mixed and be granulated before preparing diamond synthesizing column during mixed material transportation,
Process is more complicated.
Invention content
The present invention considers to overcome the drawbacks described above of the prior art from PM technique and applications of diamond, for
The sclay texture of graphite particle proposes a kind of sheet-like morphology NiMnFeB systems catalyst for being used to synthesize self-sharpening boric diamond
Powder and preparation method, due to sheet-like morphology catalytic powder can with flaky graphite good contact, increase contact area and
It is not easy to be layered after mixing, column is synthesized applied to preparing, can further play the advantage of powder catalyst, synthesis mass, yield
With the better boracic diamond of using effect.
The method for preparing boric diamond catalyst at present is generally atomization, and prepared catalytic powder is mostly irregular
Drops, predominantly FeNiBC catalyst, the diamond of synthesis is mostly boracic single-crystal diamond.One of the object of the invention is to provide one
Kind can synthesize the sheet-like morphology catalytic powder of self-sharpening polycrystalline boric diamond, and it is a further object of the present invention to provide one kind
The method that above-mentioned catalytic powder is prepared with crush method is got rid of using rapid cooling, it is also another object of the present invention to provide above-mentioned catalytic powders
Application.
One of to achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of boric diamond synthesis catalytic powder, the composition of the powder is Ni1-x-y-zMnxFeyBz, wherein 40≤x
≤ 45,4.9≤y≤5.88,0.1≤z≤0.12；The catalytic powder is sheet-like morphology, and granularity is less than or equal to 100 mesh.
Further, as z=0.1, y=4.9.
Further, x=40 or x=45.
Further, as z=0.12, y=5.88.
Further, x=42.
To achieve the above object two, the technical solution adopted by the present invention is as follows：
A kind of preparation method of above-mentioned boric diamond synthesis catalytic powder, the preparation method include the following steps：
S1：The ferro-boron and carbon granules that selection pure nickel, pure manganese, boracic are 2% are raw material, and the addition of wherein carbon granules is mainly
It as deoxidier, and forms reactant in melting and vapors away, raw material proportioning is：Ni：40~68%, Mn：30~54%, FeB
Alloy：2~6%, C：0.05~0.3%；
S2：The raw material is placed in intermediate frequency (IF) smelting in vacuum melting room, and, into aluminium alloy, vacuum degree is 5 × 10-2Pa；
S3：Aluminium alloy is poured into and is previously heated in 700 DEG C -800 DEG C of tundish, the leakage hole stream divided into through tundish
Under, through rotating speed alloy thin band of the thickness less than 50 μm is got rid of into for more than 25 meter per seconds high-speed rotating cooling copper roller；
S4：Under inert atmosphere protection, brittle heat treatment is carried out to alloy thin band, is then crushed, is prepared into 100 mesh
With thin powder, screening is for use.
Further, the raw material proportioning is Ni:50~65%, Mn:40~54%, FeB alloy for 4~6%, 0.1~
0.2% C.
To achieve the above object three, the technical solution adopted by the present invention is as follows：
A kind of boric diamond synthesis catalytic powder is synthetically prepared the application in polycrystalline boric diamond in preparation, described
For the carbon source used in for crystalline flake graphite, the ratio of the catalytic powder and the crystalline flake graphite is (3~4)：(6~7).
It is preferred that the catalytic powder and the ratio of the crystalline flake graphite are 4：6.
The present invention has the advantages that：
The granularity of sheet-like morphology catalytic powder prepared by the present invention is less than 100 mesh, and recovery rate is high, with graphite powder contact area
Greatly, high catalytic efficiency can reduce synthesis pressure, improve the yield of synthesis boric diamond；Catalyst powder production using the present invention
Diamond oxidation resistance temperature increase, can reach 900 DEG C -950 DEG C (common diamond oxidation resistance temperature be 650 DEG C~850
℃)；The self-sharpening of diamond is good, and wearability improves, the essence especially suitable for hard alloy cutter, composite sheet, jewel, ceramics etc.
Close polishing, grinding use, and improve processing efficiency, reduce production cost；Catalytic powder prepared by the present invention is closed in advance completely
Aurification ensure that each element consistence of composition in catalytic powder, so as to ensure that the equal of boron content in the diamond synthesized
Even property.In addition, the good contact of catalyst powder and graphite powder, can reduce synthesis pressure and improve the per unit area yield of diamond.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this field
Technical staff will become clear.Attached drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 is the pattern photo that the embodiment of the present invention 1 gets rid of the NiMnFeB strips prepared with method using rapid cooling；
Fig. 2 is that the embodiment of the present invention 1 gets rid of after the NiMnFeB strips prepared with method crush the tactile of pattern in the form of sheets using rapid cooling
The stereoscan photograph of matchmaker's powder；
Fig. 3 is the pattern photo of self-sharpening boric diamond synthesized using the catalytic powder of the embodiment of the present invention 1.
Specific embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although this public affairs is shown in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.It is to be able to be best understood from the disclosure, and can be by this public affairs on the contrary, providing these embodiments
The range opened completely is communicated to those skilled in the art.
Embodiment 1
Ni50Mn45Fe4.9B0.1Powder and preparation method thereof：
The raw material proportioning used for：Ni block 1000g, manganese piece 900g, FeB (boracic 2%) block 100g, carbon granules 2g.
Preparation method：The small size vacuum melt-spun equipment of 2 kg capacities is selected, the raw material of above-mentioned weight is placed in intermediate frequency
Melting is vacuumized in induction furnace, vacuum degree is 5 × 10-2More than Pa, the aluminium alloy melted, which pours into, is previously heated to 700-800 DEG C
Tundish in, aluminium alloy is flowed down by the leakage hole that tundish is divided into, the alloy fluid column flowed down flow to it is high-speed rotating cooling copper roller
On, it is rapidly cooled and solidifies and get rid of into strip, by adjusting cooling 25 meter per second of copper roller rotating speed, it is thin less than 50 μm to obtain thickness
Band, the strip pattern being prepared are as shown in Figure 1；Brittle heat treatment is carried out after collection under inert atmosphere protection, is broken after cooling
It is broken, then 100 mesh screens of obtained powder are sieved, screenings is obtained Ni50Mn45Fe4.9B0.1Slice catalyst powder
End, stereoscan photograph are as shown in Figure 2.
Embodiment 2
Ni55Mn40Fe4.9B0.1Powder and preparation method thereof：
The raw material proportioning used for：Purity is more than 99.9%Ni blocks 1100g, manganese piece 800g, FeB (boracic 2%) block 100g,
Carbon granules 2g.
Preparation method：For Preparation equipment with embodiment 1, melting vacuum degree is 5 × 10-2More than Pa, the aluminium alloy melted fall
Enter to be previously heated in 700-800 DEG C of tundish, aluminium alloy is flowed down by the leakage hole that tundish is divided into, adjustment cooling copper roller rotating speed
30 meter per seconds obtain the strip that thickness is less than 40 μm；Brittle heat treatment is carried out after collection under inert atmosphere protection, is broken after cooling
It is broken, then 100 mesh screens of obtained powder are sieved, screenings is obtained Ni55Mn40Fe4.9B0.1Slice catalyst powder
End.
Embodiment 3
Ni52Mn42Fe5.88B0.12Powder and preparation method thereof：
The composition of raw materials used for：Purity is more than 99.9%Ni blocks 1040g, manganese piece 840g, FeB (boracic 2%) block 120g,
Carbon granules 2g.
Preparation method：For Preparation equipment with embodiment 1, melting vacuum degree is 5 × 10-2More than Pa, the aluminium alloy melted fall
Enter to be previously heated in 700-800 DEG C of tundish, aluminium alloy is flowed down by the leakage hole that tundish is divided into, adjustment cooling copper roller rotating speed
40 meter per seconds obtain the strip that thickness is less than 30 μm；Brittle heat treatment is carried out after collection under inert atmosphere protection, is broken after cooling
It is broken, then 100 mesh screens of obtained powder are sieved, screenings is obtained Ni52Mn42Fe5.88B0.12Slice catalyst powder
End.
Embodiment 4
Using the Ni of embodiment 150Mn45Fe4.9B0.1Powder prepares polycrystalline diamond as catalyst.
By Ni50Mn45Fe4.9B0.1Catalytic powder：Graphite is 4：6 ratio, by catalytic powder with graphite powder after mixing
The graphite column of certain size is prepared into, boric diamond is then synthesized by high temperature and high pressure method on cubic hydraulic press.Institute
The boracic polycrystalline diamond of preparation is as shown in Figure 3.The experimental results showed that：The diamond coloration of synthesis is black, and crystalline form is polycrystalline
Shape is coalesced, self-sharpening is fine.When boric diamond is broken into less than 20 microns micro mists, oxidative resistance temperature is than normal
Boric diamond does not want 80~100 DEG C high, and wear-resisting property is higher by more than 25% than normal not boric diamond.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Subject to enclosing.
Claims (9)
1. a kind of boric diamond synthesis catalytic powder, which is characterized in that the composition of the powder is Ni1-x-y-zMnxFeyBz,
Wherein 40≤x≤45,4.9≤y≤5.88,0.1≤z≤0.12；The catalytic powder is sheet-like morphology, and granularity is less than or equal to
100 mesh.
2. boric diamond synthesis catalytic powder as described in claim 1, which is characterized in that as z=0.1, y=4.9.
3. boric diamond synthesis catalytic powder as claimed in claim 2, which is characterized in that x=40 or x=45.
4. boric diamond synthesis catalytic powder as described in claim 1, which is characterized in that as z=0.12, y=
5.88。
5. boric diamond synthesis catalytic powder as claimed in claim 4, which is characterized in that x=42.
6. the preparation method of boric diamond synthesis catalytic powder, feature exist described in a kind of claim 1-5 any one
In the preparation method includes the following steps：
S1：The ferro-boron and carbon granules that selection pure nickel, pure manganese, boracic are 2% are raw material, and raw material proportioning is：Ni：40~68%,
Mn：30~54%, FeB alloy：2~6%, C：0.05~0.3%；
S2：The raw material is placed in intermediate frequency (IF) smelting in vacuum melting room, and, into aluminium alloy, vacuum degree is 5 × 10-2Pa；
S3：Aluminium alloy is poured into and is previously heated in 700 DEG C -800 DEG C of tundish, is flowed down through the leakage hole that tundish is divided into, is passed through
Rotating speed is less than 50 μm of alloy thin band for high-speed rotating cooling copper roller centrifugal dryings more than 25 meter per seconds into thickness；
S4：Under inert atmosphere protection, brittle heat treatment is carried out to alloy thin band, is then crushed, is prepared into 100 mesh with thin
Powder, screening is for use.
7. the preparation method of boric diamond synthesis catalytic powder as claimed in claim 6, which is characterized in that the raw material
It matches as Ni:50~65%, Mn:40~54%, FeB alloy：4~6%, C：0.1~0.2%.
8. a kind of boric diamond synthesis catalytic powder as described in claim 1-5 any one is preparing polycrystalline boracic gold
Application in hard rock, which is characterized in that the carbon source used in the application is crystalline flake graphite, the catalytic powder and the scale
The ratio of graphite is (3~4)：(6~7).
9. application as claimed in claim 8, which is characterized in that the catalytic powder is 4 with the ratio of the crystalline flake graphite：6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711462283.1A CN108126706A (en) | 2017-12-28 | 2017-12-28 | A kind of boric diamond synthesis catalytic powder, preparation method and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711462283.1A CN108126706A (en) | 2017-12-28 | 2017-12-28 | A kind of boric diamond synthesis catalytic powder, preparation method and application |
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| Publication Number | Publication Date |
|---|---|
| CN108126706A true CN108126706A (en) | 2018-06-08 |
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