CN103232246A - Preparation method of thermal spraying powder for ferrite corrosion-resistant coating - Google Patents

Preparation method of thermal spraying powder for ferrite corrosion-resistant coating Download PDF

Info

Publication number
CN103232246A
CN103232246A CN2013100542585A CN201310054258A CN103232246A CN 103232246 A CN103232246 A CN 103232246A CN 2013100542585 A CN2013100542585 A CN 2013100542585A CN 201310054258 A CN201310054258 A CN 201310054258A CN 103232246 A CN103232246 A CN 103232246A
Authority
CN
China
Prior art keywords
powder
nife
preparation
hot spraying
ball milling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2013100542585A
Other languages
Chinese (zh)
Other versions
CN103232246B (en
Inventor
祝志祥
韩钰
马光
聂京凯
杨富尧
卢云深
陈新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Smart Grid Research Institute of SGCC
Original Assignee
State Grid Corp of China SGCC
Smart Grid Research Institute of SGCC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Smart Grid Research Institute of SGCC filed Critical State Grid Corp of China SGCC
Priority to CN201310054258.5A priority Critical patent/CN103232246B/en
Publication of CN103232246A publication Critical patent/CN103232246A/en
Application granted granted Critical
Publication of CN103232246B publication Critical patent/CN103232246B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Coating By Spraying Or Casting (AREA)

Abstract

The invention relates to the technical field of thermal spraying powder and provides a preparation method of thermal spraying powder for a ferrite corrosion-resistant coating. The thermal spraying powder is NiFe2O4 powder for thermal spraying. The preparation method comprises the following steps of ball milling, evaporation, drying, grinding, sieving, calcination, agglomeration and granulation. The preparation method is simple and controllable, has low equipment requirements and a low cost, is convenient for operation, has a high powder yield, and is suitable for mass production of NiFe2O4 thermal spraying powder. The NiFe2O4 powder has high purity, a regular shape, a good crystal grain crystallization state, and uniform crystal grain size distribution. The coating prepared by a plasma spraying technology has good compactness and combinability, and is used as a protection coating of an AC grounding material. Compared with a carbon steel grounding material, the AC grounding material with the protection coating has greatly improved corrosion resistance.

Description

A kind of ferrite anti-corrosion coating preparation method of hot spraying powder
[technical field]
The present invention relates to the hot spraying powder technical field, particularly a kind of power industry project of transmitting and converting electricity grounding device anti-corrosion coating Ni ferrite (NiFe 2O 4) preparation method of hot spraying powder.
[background technology]
The Ni ferrite material as the anticorrosive electrode materials of the environmental protection of a new generation, can be used as the corrosion-resistant earthing material of project of transmitting and converting electricity with its superior corrosion resistance energy and good electrical conductivity, is subjected to the extensive concern of power industry in recent years.And the fast development of hot-spraying techniques provides good basis for preparation and the application of high-performance Ni ferrite coating.The method for preparing ferrite powder in recent years has: chemical coprecipitation, hydrothermal method, sol-gel method, from spreading method etc., but aforesaid method production technique, equipment complexity, at present domestic does not still have the formation Industrial products, and the Ni ferrite powder that makes is difficult to satisfy the requirement of hot spraying powder, and the Ni ferrite anti-corrosion coating waits further research with the preparation method of hot spraying powder.The 25th the 3rd phase of volume of China's Surface Engineering 2012, " plasma spraying prepared direct current grounding pole steel matrix NiFe 2O 4Corrosion protection coating " in adopted solid reaction process in conjunction with the NiFe of reunion-crush method granulation synthetic plasma spraying 2O 4Powder, its NiFe 2O 4The average bonding strength of coating and matrix is 21.8MPa, and the coating average resistivity is about 3.60 * 10 -2Ω cm, the dc electrolysis corrosion rate is about 1.86g/(Aa), but it is not good to make size distribution inequality, the crystal grain crystalline state of powder, and the problem of coating compactness and fragility remains unsolved when being used for plasma spraying.
[summary of the invention]
In order to overcome above-mentioned defective, the invention provides a kind of for power industry project of transmitting and converting electricity grounding device anti-corrosion coating Ni ferrite (NiFe 2O 4) preparation method of hot spraying powder, this preparation method's simple controllable, low for equipment requirements, cost is low, easy to operate, powder output capacity height, is suitable for producing in enormous quantities NiFe 2O 4Hot spraying powder, and the NiFe that makes 2O 4Powder purity height, regular shape, crystal grain crystalline state are better, grain size is evenly distributed, adopt coating densification, the associativity of plasma spray coating process preparation good, as the protective coating that exchanges earthing material, its corrosion resistance nature improves a lot than the carbon steel earthing material.
The present invention is by the following technical solutions for achieving the above object:
A kind of used for hot spraying NiFe 2O 4The preparation method of powder comprises the steps:
1) ball milling: be the Fe of 1～5:1 with mol ratio 2O 3Place ball grinder ball milling 4～8h with the NiO powder, ratio of grinding media to material is 3～5:1, and rotating speed is 300～500r/min; The capacity that ball grinder adopts Jinan medium wave special cermacis company limited to produce is the nylon jar of 800ml, and mill ball is ZrO 2Ball.
2) evaporation, drying: the rotatory evaporator R-201 that adopts Shanghai Shen Sheng Bioisystech Co., Ltd, at 70～80 ℃, rotating speed is rotation evaporation step 1 under 80～120r/min) behind the slurry that obtains of ball milling, electric heating constant temperature air dry oven (DHG-9070A type) dry 24～36h under 110～120 ℃ that adopt PVG Rong Feng scientific instrument company limited to produce obtain Fe 2O 3With the NiO mixed powder;
3) grind, sieve: the Fe that obtains grinding steps 2) 2O 3With mistake 200～400 mesh sieves behind the NiO mixed powder;
4) calcining: the mixed powder calcining insulation 1.5～6h that sieves that under 950～1200 ℃, step 3) is obtained, synthetic NiFe 2O 4Powder;
5) reunion, granulation: mix the NiFe that PVA solution and step 4) obtain 2O 4Powder, ball milling is reunited, broken granulation, crosses 80～120 mesh sieves after 500-600 ℃ of calcining, gets NiFe 2O 4Powder.
A kind of used for hot spraying NiFe of the present invention 2O 4The preparation method of powder, wherein, Fe 2O 3The purity of powder 〉=99.9%.
A kind of used for hot spraying NiFe of the present invention 2O 4The preparation method of powder, wherein, the purity of NiO powder 〉=99.9%.
A kind of used for hot spraying NiFe of the present invention 2O 4The preparation method of powder, wherein, the abrading-ball of ball milling is ZrO in the step 1) 2
A kind of used for hot spraying NiFe of the present invention 2O 4The preparation method of powder, wherein, ball milling is the wet mixing ball milling in the step 1), medium is that ethanol content is 75% industrial spirit.
A kind of used for hot spraying NiFe of the present invention 2O 4The preparation method of powder, wherein, the atmosphere of calcining is atmospheric air atmosphere.
A kind of used for hot spraying NiFe of the present invention 2O 4The preparation method of powder, wherein, the massfraction of PVA solution is 8%～15%.
A kind of used for hot spraying NiFe of the present invention 2O 4The preparation method of powder, wherein, the ball milling in the step 5) is reunited and is adopted planetary ball mill.
A kind of used for hot spraying NiFe of the present invention 2O 4The preparation method of powder, wherein, the synthetic LHRO4/17 type high temperature sintering furnace that adopts German Nabertherm of sintering; The QM-3SP4 planetary ball mill that ball milling is reunited and adopted Nanjing Univ. Instrument Factory to produce, the chamber type electric resistance furnace (SRJX-8-13) that the broken back calcining of reuniting adopts Beijing Electric Stove Factory to produce.
A kind of used for hot spraying NiFe of the present invention 2O 4The preparation method of powder, wherein, NiFe 2O 4Be the inverse spinel type crystal structure.
The NiFe that the present invention is made 2O 4Powder adopts hot-spraying techniques, at conventional steel earthing pole surface-coated NiFe 2O 4Coating, " plasma spraying prepares direct current grounding pole steel matrix NiFe to the coating spraying method with reference to Chinese the 25th the 3rd phase of volume of Surface Engineering 2012 2O 4Corrosion protection coating ".Adopt D/max-RB type X-ray diffractometer (XRD) analysed for powder of Japan (Rigaku) company of science and the phase structure of coating; FDAC Hitachi S-4800 field emission scanning electron microscope (FESEM) carries out tissue topography's observation to powder and coating; Olympus PME3 type metaloscope carries out fabric analysis to coating interface.
Stretching method testing coating and high base strength on universal testing machine are cohered in employing; KEITHLEY precision resister tester is with the resistance of two hold-carrying testing coatings and calculated resistance rate (test method is with reference to Nuclear Science And Engineering, 2008,28(4): 295-299, air plasma spraying prepares the aluminum oxide coating layer technical study on the CLAM steel matrix).
Adopt German Zahner M6 type electrochemical workstation to NiFe 2O 4Coating is carried out the room temperature electrochemical corrosion test, and corrosive medium is 3% (wt.%) NaCl solution, and NaCl adopts analytical pure, and (content 〉=99.5%, wt.%), solvent adopts deionized water.Sample carries out cold edge with Resins, epoxy, and specimen surface only exposes the area of 10mm * 10mm as part of detecting, and remaining surface insulate with epoxy sealing.
The present invention adopts simple solid reaction process, and concrete processing step is improved, and prepares the NiFe that high purity and suitable thermospray are used 2O 4Powder, technical process and equipment simple controllable, easy to operate, cost is low, with short production cycle, good reproducibility, powder output capacity height (can reach more than 75%), is fit to NiFe in enormous quantities 2O 4The demand that anti-corrosion coating is produced with hot spraying powder, and the NiFe that makes 2O 4The powder regular shape, be nearly ellipsoidal structure, the crystal grain crystalline state is better, and grain size is evenly distributed (seeing Table 1), and grain size is 80～120 μ m, is suitable for plasma spraying and prepares the project of transmitting and converting electricity grounding device with high anti-corrosion NiFe 2O 4Coating.
5500-2000 type (spray gun model SG100) the air plasma spray system that coating preparation adopts Praxair company to produce, spray gun moves the mechanical manipulator control of being produced by ABB AB, and the coating preparation key process parameter comprises spraying current: 750-900A; Main gas (Ar) flow: 70-90SCFH; Auxilliary gas (He) flow: 40-60SCFH; Powder feeding rate: 10-15g/min; Spraying number of times: 5 times.The NiFe of preparation 2O 4Anti-corrosion coating causes the carbon steel corrosion resistance nature and promotes (seeing Table 2) greatly.
The NiFe that table 1 the present invention makes 2O 4The size distribution of hot spraying powder
Size distribution Example 1:80-120 μ m Example 2:80-120 μ m Example 3:80-120 μ m
Volume fraction/% 85% 88% 86%
The correlation data of table 2 erosion resistance
Sample Carbon steel Example 1: coating Example 2: coating Example 3: coating
Erosion rate/mm/a 0.0725 0.0070 0.0062 0.0065
Description of drawings
The NiFe that Fig. 1 makes for the present invention 2O 4The X-ray diffractogram of powder;
The NiFe that Fig. 2 makes for the present invention 2O 4The stereoscan photograph of powder;
The NiFe that Fig. 3 makes for the present invention 2O 4The stereoscan photograph of powder.
[embodiment]
All embodiments all are to adopt existing conventional equipment and instrument, carry out according to the step that the front is narrated:
Embodiment 1
Be 99.9%Fe with purity 2O 3With purity be that the 99.9%NiO powder places ball grinder by proportioning 2:1, and add ZrO 2Abrading-ball and ball-milling medium (concentration is 75% industrial spirit), ratio of grinding media to material is 4:1, and rotational speed of ball-mill is 400r/min, and the ball milling time is 6 hours.Adopt Rotary Evaporators that the slurry that ball milling obtains is carried out the high temperature rotary evaporation, obtain Fe 2O 3With the NiO mixed powder, place the high temperature drying case to obtain dry Fe in 24 hours then 2O 3With the NiO mixed powder.80 ℃ of vaporization temperatures, rotating speed are 100r/min, and the loft drier temperature is 120 ℃.Fe with the drying that obtains 2O 3Grind and cross 300 mesh sieves with the NiO mixed powder.Adopt high temperature sintering furnace that the powder calcination that sieves is made its synthetic NiFe 2O 4High-purity powder, calcining temperature are 1200 ℃, and calcination time is 1.5 hours, and calcination atmosphere is air atmosphere.The NiFe that calcining is obtained 2O 4Powder and massfraction are that 10% PVA solution mixes, and the volume ratio of powder and PVA solution is 50:1, places planetary ball mill to reunite, and last broken granulation makes NiFe after crossing 100 mesh sieves 2O 4Hot spraying powder.The NiFe that makes 2O 4The particle diameter of hot spraying powder is for being fit to the 80-120 μ m that the plasma spraying diameter of particle requires, the NiFe of plasma spraying preparation 2O 4The average bonding strength of coating and plain steel is 22.1MPa, and coating resistance rate mean value is 3.52 * 10 -2Ω cm, coating average corrosion rate are 0.0070mm/a.
The X-ray diffractogram of the hot spraying powder that Fig. 1 makes for present embodiment, by diffraction peak among the figure as can be known, prepared hot spraying powder is pure single-phase NiFe after calcining, reunion-broken granulation 2O 4Powder.
Fig. 2 is to be 1200 ℃ in calcining temperature, calcines gained NiFe after 1.5 hours 2O 4Powder (a) and the NiFe after reunion-broken granulation 2O 4Hot spraying powder (b) SEM figure.By figure (a) as can be known, the granularity of calcining synthetic powder is less, and distribution of sizes is less, and between 300-500nm, the crystal grain crystallinity is better; By figure (b) as can be known, the NiFe after reunion-broken granulation 2O 4The size distribution of hot spraying powder is even, and size is for being fit to the 80-120 μ m that the plasma spraying diameter of particle requires.Fig. 2 is the stereoscan photograph of synthetic powder, as can be seen the NiFe in this powder 2O 4Particle is by a plurality of NiFe 2O 4The directed nanoparticle that forms of assembling.
Embodiment 2
Be 99.9%Fe with purity 2O 3With purity be that the 99.9%NiO powder places ball grinder by the 1:1 mol ratio, and add ZrO 2Abrading-ball and ball-milling medium (concentration is 75% industrial spirit), ratio of grinding media to material is 4:1, and rotational speed of ball-mill is 400r/min, and the ball milling time is 8 hours.Adopt Rotary Evaporators that the slurry that ball milling obtains is carried out the high temperature rotary evaporation, obtain Fe 2O 3With the NiO mixed powder, place the high temperature drying case to obtain dry Fe in 36 hours then 2O 3With the NiO mixed powder.Vaporization temperature is 70 ℃, and rotating speed is 100r/min, and the loft drier temperature is 110 ℃.Fe with the drying that obtains 2O 3Grind and cross 300 mesh sieves with the NiO mixed powder.Adopt high temperature sintering furnace that the powder calcination that sieves is made its synthetic NiFe 2O 4High-purity powder, calcining temperature are 1050 ℃, and calcination time is 4 hours, and calcination atmosphere is air atmosphere.The NiFe that calcining is obtained 2O 4Powder and massfraction are that 10% PVA solution mixes, and the volume ratio of powder and PVA solution is 50:1, places planetary ball mill to reunite, and last broken granulation makes NiFe after crossing 100 mesh sieves 2O 4Hot spraying powder.The NiFe that makes 2O 4The particle diameter of hot spraying powder is for being fit to the 80-120 μ m that the plasma spraying diameter of particle requires, the NiFe of plasma spraying preparation 2O 4The average bonding strength of coating and plain steel is 23.0MPa, and coating resistance rate mean value is 3.59 * 10 -2Ω cm, coating average corrosion rate are 0.0062mm/a.
Fig. 3 is that calcining temperature is 1050 ℃, calcines the NiFe of gained after 4 hours 2O 4Powder (a) and the NiFe after reunion-broken granulation 2O 4Hot spraying powder (b) SEM figure.By figure (a) as can be known, the granularity of calcining synthetic powder is less, and distribution of sizes is less, and between 300-500nm, the crystal grain crystallinity is better; By figure (b) as can be known, the NiFe after reunion-broken granulation 2O 4The size distribution of hot spraying powder is even, and size is for being fit to the 80-120 μ m that the plasma spraying diameter of particle requires.
Embodiment 3
Be 99.9% Fe with purity 2O 3Place ball grinder with the NiO powder by proportioning 1.5:1, and add ZrO 2Abrading-ball and ball-milling medium (concentration is 75% industrial spirit), ratio of grinding media to material is 4:1, and rotational speed of ball-mill is 400r/min, and the ball milling time is 6 hours.Adopt Rotary Evaporators that the slurry that ball milling obtains is carried out the high temperature rotary evaporation, obtain Fe 2O 3With the NiO mixed powder, place the high temperature drying case to obtain dry Fe in 24 hours then 2O 3With the NiO mixed powder.Vaporization temperature is 80 ℃, and rotating speed is 100r/min, and the loft drier temperature is 120 ℃.Fe with the drying that obtains 2O 3Grind and cross 300 mesh sieves with the NiO mixed powder.Adopt high temperature sintering furnace that the powder calcination that sieves is made its synthetic NiFe 2O 4High-purity powder, calcining temperature are 1100 ℃, and calcination time is 3 hours, and calcination atmosphere is air atmosphere.The NiFe that calcining is obtained 2O 4Powder and massfraction are that 12% PVA solution mixes, and the volume ratio of powder and PVA solution is 50:1, places planetary ball mill to reunite, and last broken granulation makes NiFe after crossing 100 mesh sieves 2O 4Hot spraying powder.The NiFe that makes 2O 4The particle diameter of hot spraying powder is for being fit to the 80-120 μ m that the plasma spraying diameter of particle requires, the NiFe of plasma spraying preparation 2O 4The average bonding strength of coating and plain steel is 22.6MPa, and coating resistance rate mean value is 3.56 * 10 -2Ω cm, coating average corrosion rate are 0.0065mm/a.

Claims (10)

1. used for hot spraying NiFe 2O 4The preparation method of powder comprises the steps:
1) ball milling: be the Fe of 1～5:1 with mol ratio 2O 3Place ball grinder ball milling 4～8h with the NiO powder, ratio of grinding media to material is 3～5:1, and rotating speed is 300～500r/min;
2) evaporation, drying: at 70～80 ℃, rotating speed is rotation evaporation step 1 under 80～120r/min) behind the slurry that obtains of ball milling, at 110～120 ℃ of down dry 24～36h, obtain Fe 2O 3With the NiO mixed powder;
3) grind, sieve: the Fe that obtains grinding steps 2) 2O 3With mistake 200～400 mesh sieves behind the NiO mixed powder;
4) calcining: the mixed powder calcining insulation 1.5～6h that sieves that under 950～1200 ℃, step 3) is obtained, synthetic NiFe 2O 4Powder;
5) reunion, granulation: mix the NiFe that PVA solution and step 4) obtain 2O 4Powder, ball milling is reunited, broken granulation, crosses 80～120 mesh sieves after 500～600 ℃ of calcinings, gets NiFe 2O 4Powder.
2. a kind of used for hot spraying NiFe as claimed in claim 1 2O 4The preparation method of powder is characterized in that described Fe 2O 3The purity of powder 〉=99.9%.
3. a kind of used for hot spraying NiFe as claimed in claim 1 2O 4The preparation method of powder is characterized in that purity 〉=99.9% of described NiO powder.
4. a kind of used for hot spraying NiFe as claimed in claim 1 2O 4The preparation method of powder, the abrading-ball that it is characterized in that ball milling in the described step 1) is ZrO 2
5. a kind of used for hot spraying NiFe as claimed in claim 1 2O 4The preparation method of powder is characterized in that ball milling is the wet mixing ball milling in the described step 1), and medium is industrial spirit.
6. a kind of used for hot spraying NiFe as claimed in claim 5 2O 4The preparation method of powder, the purity that it is characterized in that described industrial spirit is 75%.
7. a kind of used for hot spraying NiFe as claimed in claim 1 2O 4The preparation method of powder, the atmosphere that it is characterized in that described calcining is atmospheric air atmosphere.
8. a kind of used for hot spraying NiFe as claimed in claim 1 2O 4The preparation method of powder, the massfraction that it is characterized in that described PVA solution is 8%～15%.
9. a kind of used for hot spraying NiFe as claimed in claim 1 2O 4The preparation method of powder is characterized in that planetary ball mill is adopted in the ball milling reunion in the described step 5).
10. a kind of used for hot spraying NiFe as claimed in claim 1 2O 4The preparation method of powder is characterized in that described NiFe 2O 4Be the inverse spinel type crystal structure.
CN201310054258.5A 2013-02-20 2013-02-20 Preparation method of thermal spraying powder for ferrite corrosion-resistant coating Active CN103232246B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310054258.5A CN103232246B (en) 2013-02-20 2013-02-20 Preparation method of thermal spraying powder for ferrite corrosion-resistant coating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310054258.5A CN103232246B (en) 2013-02-20 2013-02-20 Preparation method of thermal spraying powder for ferrite corrosion-resistant coating

Publications (2)

Publication Number Publication Date
CN103232246A true CN103232246A (en) 2013-08-07
CN103232246B CN103232246B (en) 2014-12-31

Family

ID=48880330

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310054258.5A Active CN103232246B (en) 2013-02-20 2013-02-20 Preparation method of thermal spraying powder for ferrite corrosion-resistant coating

Country Status (1)

Country Link
CN (1) CN103232246B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103602941A (en) * 2013-11-28 2014-02-26 国家电网公司 Ferrite conductive coating and preparation method thereof
CN104909735A (en) * 2014-03-13 2015-09-16 江苏联合金陶特种材料科技有限公司 High temperature resistant corrosion-resistant ceramic material and preparation method thereof
CN105036728A (en) * 2015-07-29 2015-11-11 国网智能电网研究院 Method for preparing lithium ferrite thermal spraying powder used for conductive coating
CN106366419A (en) * 2016-09-09 2017-02-01 国网山东省电力公司荣成市供电公司 XLPE (cross-linked polyethylene) cable insulating material
CN106496747A (en) * 2016-11-16 2017-03-15 国网山东省电力公司荣成市供电公司 A kind of high voltage direct current cable
CN107516567A (en) * 2017-10-17 2017-12-26 苏州南尔材料科技有限公司 A kind of preparation method of the Ni-based soft magnetic materials of surface treated iron
CN111057985A (en) * 2019-12-31 2020-04-24 广东省新材料研究所 High-performance perovskite type oxide powder for thermal spraying and preparation method and application thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005097048A (en) * 2003-09-25 2005-04-14 Kyocera Corp Ferrite sintered compact, and ferrite core and ferrite coil using the same
CN101255570A (en) * 2007-12-07 2008-09-03 东北大学 Inert anode material for aluminium electrolysis and method for manufacturing same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005097048A (en) * 2003-09-25 2005-04-14 Kyocera Corp Ferrite sintered compact, and ferrite core and ferrite coil using the same
CN101255570A (en) * 2007-12-07 2008-09-03 东北大学 Inert anode material for aluminium electrolysis and method for manufacturing same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103602941A (en) * 2013-11-28 2014-02-26 国家电网公司 Ferrite conductive coating and preparation method thereof
CN104909735A (en) * 2014-03-13 2015-09-16 江苏联合金陶特种材料科技有限公司 High temperature resistant corrosion-resistant ceramic material and preparation method thereof
CN105036728A (en) * 2015-07-29 2015-11-11 国网智能电网研究院 Method for preparing lithium ferrite thermal spraying powder used for conductive coating
CN105036728B (en) * 2015-07-29 2018-08-14 国网智能电网研究院 A kind of preparation method of conductive coating Li ferrite hot spraying powder
CN106366419A (en) * 2016-09-09 2017-02-01 国网山东省电力公司荣成市供电公司 XLPE (cross-linked polyethylene) cable insulating material
CN106366419B (en) * 2016-09-09 2019-02-26 国网山东省电力公司荣成市供电公司 A kind of XLPE cable insulating materials
CN106496747A (en) * 2016-11-16 2017-03-15 国网山东省电力公司荣成市供电公司 A kind of high voltage direct current cable
CN107516567A (en) * 2017-10-17 2017-12-26 苏州南尔材料科技有限公司 A kind of preparation method of the Ni-based soft magnetic materials of surface treated iron
CN111057985A (en) * 2019-12-31 2020-04-24 广东省新材料研究所 High-performance perovskite type oxide powder for thermal spraying and preparation method and application thereof

Also Published As

Publication number Publication date
CN103232246B (en) 2014-12-31

Similar Documents

Publication Publication Date Title
CN103232246B (en) Preparation method of thermal spraying powder for ferrite corrosion-resistant coating
Park et al. Enhanced proton conductivity of yttrium-doped barium zirconate with sinterability in protonic ceramic fuel cells
CN103991899B (en) The preparation method of the flower-shaped tin oxide micro-nano structure of a kind of porous
CN109449428A (en) A kind of nitrogen-doped carbon cladding admixed graphite composite material and preparation method and the application in lithium ion battery
CN102496704B (en) Lithium titanate/titanium black anode material and preparation method thereof
CN106025276B (en) A kind of preparation method and lithium ion battery of carbon coating vanadium trioxide nano material
CN113372108B (en) Preparation method of high-entropy ceramic material with good light absorption performance
CN114249593B (en) High-entropy perovskite structure cathode material and preparation method and application thereof
CN105197952A (en) Preparation of nano single crystal lanthanum hexaboride and application of nano single crystal lanthanum hexaboride in electron microscope filament preparation
CN105552340A (en) Cathode material for lithium-ion battery and preparation method of cathode material
CN104638261A (en) High rate LiFePO4/C positive electrode material and preparation method thereof
CN102376957A (en) Low-temperature type lithium iron phosphate anode material and preparation method thereof
CN104313566B (en) A kind of cold spraying prepares the method and its obtained product of metal connector perovskite coating
CN108987776B (en) Medium-temperature solid oxide fuel cell electrolyte and preparation method thereof
CN104466167B (en) Method for preparing positive material LiNi1/3Co1/3Mn1/3O2 of lithium ion battery
CN103794758B (en) The preparation method of vapour deposition process coating-doping lithium manganate composite anode material
CN106299301B (en) A kind of Li with excellent storage lithium performance3VO4The pattern of nano wire mutually regulates and controls method with object
CN108963220B (en) Preparation and application of multicomponent oxide of natural vegetable oil modified MOF structure
CN105036728B (en) A kind of preparation method of conductive coating Li ferrite hot spraying powder
CN111634950A (en) Preparation method of perovskite type high-emissivity spherical agglomerated powder
CN103035936A (en) Preparation method of composite electrolyte powder for medium-and-low-temperature solid oxide fuel cell
CN110372039A (en) A kind of method that high-valence state transition metal ions Permutations combination strategy prepares cation disorder rock salt structure positive electrode
CN105932264A (en) Preparation method of lithium-rich spinel lithium manganite compound
CN105514359A (en) Method for preparing Fe-Sn composite oxide through filter paper template method
CN107500737A (en) Complex phase conducting ceramic material and preparation method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent of invention or patent application
CB03 Change of inventor or designer information

Inventor after: Zhu Zhixiang

Inventor after: Han Yu

Inventor after: Ma Guang

Inventor after: Nie Jingkai

Inventor after: Yang Fuyao

Inventor after: Lu Yunshen

Inventor after: Chen Xin

Inventor after: Zhao Yongsheng

Inventor before: Zhu Zhixiang

Inventor before: Han Yu

Inventor before: Ma Guang

Inventor before: Nie Jingkai

Inventor before: Yang Fuyao

Inventor before: Lu Yunshen

Inventor before: Chen Xin

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: ZHU ZHIXIANG HAN YU MA GUANG NIE JINGKAI YANG FUYAO LU YUNSHEN CHEN XIN TO: ZHU ZHIXIANG HAN YU MA GUANG NIE JINGKAI YANG FUYAO LU YUNSHEN CHEN XIN ZHAO YONGSHENG