CN112176272B - Method for preparing hydroxyapatite coating by plasma spraying - Google Patents
Method for preparing hydroxyapatite coating by plasma spraying Download PDFInfo
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- CN112176272B CN112176272B CN202010943462.2A CN202010943462A CN112176272B CN 112176272 B CN112176272 B CN 112176272B CN 202010943462 A CN202010943462 A CN 202010943462A CN 112176272 B CN112176272 B CN 112176272B
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/134—Plasma spraying
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Abstract
The invention discloses a method for preparing a hydroxyapatite coating by plasma spraying, which comprises the following steps of S1, preparing powder; s2, drying the powder obtained in the step S1; s3, performing deoiling, sand blasting, cleaning and drying treatment on the substrate; and S4, depositing the dried powder on the base material which is processed in the step S3 and loaded with a magnetic field with certain magnetic induction intensity by adopting a plasma spraying method to obtain the coating. According to the invention, a magnetic field with certain magnetic induction intensity is loaded on the substrate in the plasma spraying process, the decomposition of hydroxyapatite molten drops is inhibited under the action of the magnetic field, the crystallization of the coating is promoted, the crystallization degree of the obtained coating is also obviously improved, the biological activity of the coating is also greatly improved, calcium and phosphorus elements are easier to generate ion exchange with the coating in the simulated body fluid soaking process, the coating is stable and difficult to dissolve, the process preparation process is simple and easy to realize, and the cost is greatly reduced.
Description
Technical Field
The invention relates to the field of preparation of biomedical materials, in particular to a method for preparing a hydroxyapatite coating by plasma spraying.
Background
Hydroxyapatite (Hydroxyapatite) with chemical formula of Ca10(PO4)6(OH)2HA, abbreviated as HA, is a hexagonal system, HAs unit cell parameters of a ═ b ═ 0.9432nm and c ═ 0.6881nm, belongs to L6PC symmetry and P63/m space group, HAs a Ca/P ratio of 1.67, is a main component of human skeleton, HAs an excellent bioactivity in a content of about 70% in human bone, can be naturally combined with bone formation and grow new tissues, and is an important biomedical material. However, hydroxyapatite has poor flexural strength and fracture toughness, and its implantation application in vivo is limited. Thus, hydroxyapatite is present inThe deposition of a coating on the surface of a metal substrate is an important application form of the material.
In the prior art, the comprehensive performance of a hydroxyapatite coating is improved usually in a mode of regulating or controlling a post-treatment process by components, and a magnetic field is often applied to the preparation processes of other forms and other materials to influence the functional performance of the materials in a mode of controlling crystal orientation or component distribution.
The plasma spraying has the characteristics of wide range of spraying materials, high deposition efficiency, small heat influence on the matrix, accurate and controllable coating thickness, no limitation of the shape or area of the matrix and the like, and is widely applied to the preparation of the coating materials. Meanwhile, plasma spraying is also one of the important methods for preparing hydroxyapatite coatings. However, in the plasma spraying and depositing process of the hydroxyapatite coating, the hydroxyapatite is often decomposed into calcium-containing compounds such as tricalcium phosphate and the like under the heating action of the high-temperature plasma beam; a large amount of amorphism is formed in the subsequent rapid solidification process, resulting in a coating with limited bioactivity and easy decomposition in a body fluid environment. Therefore, the hydroxyapatite coating layer sprayed by plasma often needs to be promoted to crystallize by subsequent post-treatment means such as heat treatment in a water vapor environment, so as to improve the biological performance of the coating layer. However, the post-treatment means often causes grain growth or deteriorates the bonding strength between the coating and the substrate, the process is complicated, and the cost is correspondingly increased.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a method for preparing a hydroxyapatite coating by plasma spraying, which solves the problems mentioned in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a method for preparing a hydroxyapatite coating by plasma spraying comprises the following steps:
s1, preparing powder;
s2, drying the powder obtained in the step S1;
s3, performing deoiling, sand blasting, cleaning and drying treatment on the substrate;
and S4, depositing the dried powder on the base material which is processed in the step S3 and loaded with a magnetic field with certain magnetic induction intensity by adopting a plasma spraying method to obtain the coating.
Preferably, the powder in step S1 is selected from hydroxyapatite powder, the powder is prepared by spray drying or ball milling, and the particle size of the powder is in the range of 5 μm to 200 μm.
Preferably, the substrate in the step S3 is a TC4 alloy, a cobalt-based alloy, or stainless steel.
Preferably, in the step S3, the blasting particles are mainly alumina or quartz sand, the particle size of the particles is 60 to 200 meshes, and the blasting pressure is 0.1 to 0.8 MPa.
Preferably, the drying method in step S2 or step S3 is drying treatment under vacuum or inert atmosphere at 100 ℃ or below; the inert gas is nitrogen or argon.
Preferably, the technical parameters of the plasma spraying method in step S4 are as follows: the distance between the spray gun and the substrate is 60-120 mm; the moving speed of the spray gun is 50-600 mm/min; the powder feeding speed is 8-100 g/min; the powder feeding airflow is 3-15L/min; the current range is 300-800A; the main gas component is argon or nitrogen, and the flow range is 20-100L/min; the secondary gas component is hydrogen, and the flow range is 0.5-20L/min.
Preferably, the magnetic induction intensity of the magnetic field loaded on the substrate in the step S4 is 110 to 1000mT, the magnetic field may be a steady magnetic field or a pulsed magnetic field, and the magnetic field generating device may be a permanent magnet, an electromagnet, or an induction coil.
Preferably, the temperature of the substrate is room temperature, and the thickness range of the obtained coating is 30-150 μm.
Preferably, the temperature of the substrate is room temperature, and the thickness range of the obtained coating is 50-90 μm.
The invention has the beneficial effects that: the invention reduces the interfacial tension between the molten (or semi-molten) powder droplet and the matrix by loading a magnetic field with certain magnetic induction intensity on the matrix in the plasma spraying process, promotes the wetting of the droplet on the matrix and the formed coating surface, simultaneously inhibits the decomposition of the hydroxyapatite droplet due to the action of the magnetic field, promotes the crystallization of the coating, obviously improves the crystallization degree of the coating obtained by loading the magnetic field compared with that without the magnetic field, greatly improves the bioactivity of the coating, is easier to generate ion exchange between calcium and phosphorus elements and the coating in the simulated body fluid soaking process, has stable and difficult dissolution of the coating, and has simple process preparation process, easy realization and greatly reduced cost.
Drawings
FIG. 1 is an XRD spectrum line of a hydroxyapatite coating plasma sprayed under the action of a steady magnetic field with or without 110 mT;
FIG. 2 is the surface topography of the coating after soaking in simulated body fluid for 10 days with and without the action of a steady magnetic field of 110 mT.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A method for preparing a hydroxyapatite coating by plasma spraying comprises the following steps:
step (1): preparing hydroxyapatite powder by a ball milling method, wherein the particle size of the powder is 5-100 mu m;
step (2): putting the hydroxyapatite powder in a vacuum environment at 80 ℃ for drying treatment;
and (3): acetone deoiling and drying treatment are carried out on the TC4 alloy matrix;
and (4): carrying out sand blasting treatment on the alloy matrix, adopting 60-100 meshes of alumina sand, and cleaning and drying the surface of the metal matrix, wherein the sand blasting pressure is 0.5 MPa;
and (5): for a stable and constant magnetic field with the magnetic induction intensity of 110mT of an alloy matrix, a hydroxyapatite coating is deposited on the surface of the alloy matrix by a plasma spraying method, and the specific parameters are that the distance between a spray gun and the metal matrix is 90mm, the moving speed of the spray gun is 50mm/min, the spraying current is 500A, the main gas is argon flow 20L/min, the hydrogen flow is 0.5L/min, the powder feeding rate is 40g/min, and the powder feeding gas flow is 3L/min. The coating thickness obtained was 50 μm.
Compared with the coating without the magnetic field in the spraying process, the coating with the magnetic field is obviously enhanced in dissolution resistance after being soaked in simulated body fluid for 10 days.
Example 2
A method for preparing a hydroxyapatite coating by plasma spraying comprises the following steps:
step (1): preparing hydroxyapatite powder by a spray drying method, wherein the particle size of the powder is 50-150 mu m;
step (2): putting the hydroxyapatite powder in a vacuum environment at 70 ℃ for drying treatment;
and (3): acetone deoiling and drying treatment are carried out on the TC4 alloy matrix;
and (4): carrying out sand blasting treatment on the alloy matrix, adopting 60-120 mesh alumina sand, and cleaning and drying the surface of the metal matrix, wherein the sand blasting pressure is 0.6 MPa;
and (5): the magnetic induction intensity of a pulse magnetic field of 600mT is applied to an alloy matrix, the pulse frequency is 200Hz, and a hydroxyapatite coating is deposited on the surface of the alloy matrix by adopting a plasma spraying method, wherein the specific parameters are that the distance between a spray gun and the metal matrix is 80mm, the moving speed of the spray gun is 100mm/min, the spraying current is 400A, the main gas is argon flow of 20L/min, the hydrogen flow is 0.5L/min, the powder feeding rate is 50g/min, and the powder feeding flow is 5L/min. The coating thickness obtained was 30 μm.
Compared with the coating without the magnetic field in the spraying process, the coating with the magnetic field is obviously enhanced in dissolution resistance after being soaked in simulated body fluid for 25 days.
Example 3
A method for preparing a hydroxyapatite coating by plasma spraying comprises the following steps:
step (1): preparing hydroxyapatite powder by a ball milling method, wherein the particle size of the powder is 5-120 mu m;
step (2): putting the hydroxyapatite powder in a vacuum environment at 50 ℃ for drying treatment;
and (3): acetone deoiling and drying treatment are carried out on the TC4 alloy matrix;
and (4): carrying out sand blasting treatment on the alloy matrix, adopting 60-100 meshes of alumina sand, and cleaning and drying the surface of the metal matrix, wherein the sand blasting pressure is 0.4 MPa;
and (5): the magnetic induction intensity of an alloy substrate is a stable and constant magnetic field of 700mT, and a hydroxyapatite coating is deposited on the surface of the alloy substrate by a plasma spraying method, wherein the specific parameters are that the distance between a spray gun and the metal substrate is 60mm, the moving speed of the spray gun is 200mm/min, the spraying current is 700A, the main gas is argon flow of 50L/min, the hydrogen flow is 0.5L/min, the powder feeding rate is 70g/min, and the powder feeding gas flow is 9L/min. The coating thickness obtained was 90 μm.
Compared with the coating without the magnetic field in the spraying process, the coating with the magnetic field is obviously enhanced in dissolution resistance after being soaked in simulated body fluid for 12 days.
Example 4
A method for preparing a hydroxyapatite coating by plasma spraying comprises the following steps:
step (1): preparing hydroxyapatite powder by a ball milling method, wherein the particle size of the powder is 5-200 mu m;
step (2): putting the hydroxyapatite powder in a vacuum environment at 90 ℃ for drying treatment;
and (3): acetone deoiling and drying treatment are carried out on the TC4 alloy matrix;
and (4): carrying out sand blasting treatment on the alloy matrix, adopting 60-200-mesh alumina sand, and cleaning and drying the surface of the metal matrix, wherein the sand blasting pressure is 0.8 MPa;
and (5): the magnetic induction intensity of a pulse magnetic field of an alloy matrix is 1000mT, and a hydroxyapatite coating is deposited on the surface of the alloy matrix by a plasma spraying method, wherein the specific parameters are that the distance between a spray gun and the metal matrix is 120mm, the moving speed of the spray gun is 600mm/min, the spraying current is 800A, the main gas is 100L/min of argon flow, the hydrogen flow is 20L/min, the powder feeding rate is 100g/min, and the powder feeding gas flow is 15L/min. The coating thickness obtained was 150 μm.
Compared with the coating without the magnetic field in the spraying process, the coating with the magnetic field is obviously enhanced in dissolution resistance after being soaked in simulated body fluid for 18 days.
Example 5
A method for preparing a hydroxyapatite coating by plasma spraying comprises the following steps:
step (1): preparing hydroxyapatite powder by a spray drying method, wherein the particle size of the powder is 5-200 mu m;
step (2): putting the hydroxyapatite powder in a vacuum environment at 90 ℃ for drying treatment;
and (3): acetone deoiling and drying treatment are carried out on the TC4 alloy matrix;
and (4): carrying out sand blasting treatment on the alloy matrix, adopting 60-200-mesh alumina sand, and cleaning and drying the surface of the metal matrix, wherein the sand blasting pressure is 0.1 MPa;
and (5): for a stable magnetic field with the magnetic induction intensity of 550mT of an alloy matrix, a hydroxyapatite coating is deposited on the surface of the alloy matrix by a plasma spraying method, and the specific parameters are that the distance between a spray gun and the metal matrix is 60mm, the moving speed of the spray gun is 50mm/min, the spraying current is 300A, the main gas is argon flow of 20L/min, the hydrogen flow is 0.5L/min, the powder feeding rate is 8g/min, and the powder feeding gas flow is 3L/min. The coating thickness obtained was 70 μm.
Compared with the coating without the magnetic field in the spraying process, the coating with the magnetic field is obviously enhanced in dissolution resistance after being soaked in simulated body fluid for 21 days.
Referring to fig. 1-2, the attached drawings show that under the action of a magnetic field with a magnetic induction intensity of 110mT of an alloy matrix, as shown in fig. 1, fig. 1 shows XRD spectral lines of plasma spraying hydroxyapatite coatings under the action of a magnetic field and without the action of a magnetic field, and XRD spectral line results show that the intensity and the number of impurity phase peaks of the coatings loaded with the magnetic field during the spraying process are obviously reduced, the interfacial tension between molten (or semi-molten) powder droplets and the matrix is reduced, the wetting of the droplets on the matrix and the formed coating surface is promoted, and the crystallization degree of the obtained coatings is also obviously improved.
As shown in fig. 2, fig. 2 is a surface morphology of the coating after soaking, the coating without a magnetic field is obviously dissolved after soaking in simulated body fluid for 10 days as shown in fig. 2(a), the coating without a magnetic field is not obviously dissolved as shown in fig. 2(b), a magnetic induction intensity magnetic field with a certain magnetic induction intensity is loaded on the substrate in the plasma spraying process, the decomposition of hydroxyapatite molten drops is inhibited due to the action of the magnetic field, the decomposition of hydroxyapatite is also effectively controlled, the crystallization of the coating is promoted, and the biological activity of the coating is also greatly improved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (8)
1. A method for preparing a hydroxyapatite coating by plasma spraying is characterized by comprising the following steps:
s1, preparing powder;
s2, drying the powder obtained in the step S1;
s3, performing deoiling, sand blasting, cleaning and drying treatment on the substrate;
s4, depositing the dried powder on the base material which is processed in the step S3 and loaded with a magnetic field with certain magnetic induction intensity by adopting a plasma spraying method to obtain a coating;
the magnetic induction intensity of the magnetic field loaded on the substrate in the step S4 is 110-1000 mT.
2. The method for preparing a hydroxyapatite coating by plasma spraying according to claim 1, characterized in that: the powder in the step S1 is selected from hydroxyapatite powder, the preparation method of the powder is spray drying or ball milling, and the particle size range of the powder is 5 μm to 200 μm.
3. The method for preparing a hydroxyapatite coating by plasma spraying according to claim 1, characterized in that: the substrate in the step S3 is a TC4 alloy, a cobalt-based alloy, or stainless steel.
4. The method for preparing a hydroxyapatite coating by plasma spraying according to claim 1, characterized in that: in the step S3, when performing the blasting, the blasting particles mainly contain alumina or quartz sand, the particle size of the particles is 60 to 200 meshes, and the blasting pressure is 0.1 to 0.8 MPa.
5. The method for preparing a hydroxyapatite coating by plasma spraying according to claim 1, characterized in that: the drying method in the step S2 or the step S3 is to carry out drying treatment on the mixture under the environment of vacuum or inert atmosphere below 100 ℃; the inert atmosphere is nitrogen or argon.
6. The method for preparing a hydroxyapatite coating by plasma spraying according to claim 1, characterized in that: the technical parameters of the plasma spraying method in the step S4 are as follows: the distance between the spray gun and the substrate is 60-120 mm; the moving speed of the spray gun is 50-600 mm/min; the powder feeding speed is 8-100 g/min; the powder feeding airflow is 3-15L/min; the current range is 300-800A; the main gas component is argon or nitrogen, and the flow range is 20-100L/min; the secondary gas component is hydrogen, and the flow range is 0.5-20L/min.
7. The method for preparing a hydroxyapatite coating by plasma spraying according to claim 1, characterized in that: the temperature of the substrate is room temperature, and the thickness range of the obtained coating is 30-150 mu m.
8. The method for preparing a hydroxyapatite coating by plasma spraying according to claim 7, characterized in that: the temperature of the substrate is room temperature, and the thickness range of the obtained coating is 50-90 mu m.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006198874A (en) * | 2005-01-20 | 2006-08-03 | Yokohama National Univ | Calcium phosphate coated microsphere and its manufacturing method |
| RU2372101C1 (en) * | 2008-04-21 | 2009-11-10 | Государственное образовательное учреждение высшего профессионального образования "Воронежский государственный университет" | Method for making supported calcium-phosphate coating |
| CN108385053A (en) * | 2018-03-01 | 2018-08-10 | 西南科技大学 | A method of improving plasma spraying coating consistency |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004149386A (en) * | 2002-10-31 | 2004-05-27 | Japan Science & Technology Agency | Method of producing apatite-coated base material, and apparatus for producing apatite-coated base material |
| KR101581075B1 (en) * | 2009-03-19 | 2015-12-29 | 가부시끼가이샤 소프세라 | Tooth surface repairing material |
| CN101591759B (en) * | 2009-06-26 | 2011-05-25 | 北京工业大学 | Method for preparing hydroxylapatite coating by microplasma spraying |
| EP2493686A4 (en) * | 2009-10-26 | 2015-09-09 | Univ Rutgers | Hydroxyapatite with controllable size and morphology |
| KR101144248B1 (en) * | 2010-05-13 | 2012-05-10 | 한국기계연구원 | Preparation method of hydroxyapatite coating layer using aerosol deposition and hydrothermal treatment, and nanostructured hydroxyapatite coating layer prepared by the method |
| FR2960167B1 (en) * | 2010-05-21 | 2013-02-08 | Centre Nat Rech Scient | METHOD FOR OBTAINING THIN LAYERS |
| CN103993315B (en) * | 2014-06-05 | 2016-03-23 | 山东大学 | A kind of CaP-TiO 2the preparation technology of compound bio film |
| CN105920668B (en) * | 2016-06-08 | 2019-04-12 | 西南交通大学 | A kind of preparation method of the antibiotic bioactive ceramic coating with magnetic responsiveness |
| US10537658B2 (en) * | 2017-03-28 | 2020-01-21 | DePuy Synthes Products, Inc. | Orthopedic implant having a crystalline gallium-containing hydroxyapatite coating and methods for making the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006198874A (en) * | 2005-01-20 | 2006-08-03 | Yokohama National Univ | Calcium phosphate coated microsphere and its manufacturing method |
| RU2372101C1 (en) * | 2008-04-21 | 2009-11-10 | Государственное образовательное учреждение высшего профессионального образования "Воронежский государственный университет" | Method for making supported calcium-phosphate coating |
| CN108385053A (en) * | 2018-03-01 | 2018-08-10 | 西南科技大学 | A method of improving plasma spraying coating consistency |
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