CN102774087A - Novel metal and ceramic composite - Google Patents
Novel metal and ceramic composite Download PDFInfo
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- CN102774087A CN102774087A CN2012102824134A CN201210282413A CN102774087A CN 102774087 A CN102774087 A CN 102774087A CN 2012102824134 A CN2012102824134 A CN 2012102824134A CN 201210282413 A CN201210282413 A CN 201210282413A CN 102774087 A CN102774087 A CN 102774087A
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Abstract
The invention discloses a novel metal and ceramic composite which comprises a metal substrate and a ceramic coating. The metal substrate is the hard alloy; a middle connection layer is arranged between the metal substrate and the ceramic coating; the middle connection layer is a composite metal layer which comprises a first metal layer and a second metal layer, wherein the first metal layer has small thermal expansion coefficient and high modulus of elasticity, and the second metal layer has good plasticity; the first metal layer is combined with the ceramic coating; and the second metal layer is combined with the metal substrate. The ceramic coating is closely combined with the metal substrate through the middle connection layer, and the middle connection layer can ease the residual stress of the connection parts.
Description
Technical field
The present invention relates to field of compound material, particularly relate to a kind of novel metal/ceramic composite.
Background technology
Ceramic material is with one type of Inorganic Non-metallic Materials natural or that the synthetic compound process is shaped and high temperature sintering is processed.It has advantages such as high-melting-point, high rigidity, high-wearing feature, resistance to oxidation.Can be used as structural material, cutter material,, can be used as functional material again because pottery also has some special performances.Ceramic material is the material that rigidity is best in the engineering material, hardness is the highest, and its hardness is mostly more than 1500HV.The compression strength of pottery is higher, but tensile strength is lower, and plasticity and toughness are very poor.Ceramic material generally has high fusing point (mostly more than 2000 ℃), and at high temperature has fabulous chemical stability; The thermal conductivity of pottery is lower than metal material, and pottery still is good heat-barrier material.The linear expansion coefficient of pottery is lower than metal simultaneously, and when temperature changed, pottery had good dimensional stability.Ceramic material at high temperature is difficult for oxidation, and acid, alkali, salt are had good resistance to corrosion.
In order to improve the wearability of metal; Can on metallic matrix, apply one deck ceramic coating, but, be difficult to directly connect owing to the physicochemical property of pottery with metal differs greatly; Main because both thermal expansion coefficient differences are bigger, be prone to produce very big residual thermal stress in the junction.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of novel metal/ceramic composite, through intermediate connecting layer said ceramic coating and metallic matrix is combined closely.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of novel metal/ceramic composite is provided; Comprise: metallic matrix and ceramic coating, said metallic matrix are carbide alloy, also comprise intermediate connecting layer between said metallic matrix and the said ceramic coating; Said intermediate connecting layer is a complex metal layer; Comprise thermal coefficient of expansion is little, elastic modelling quantity is high the first metal layer and the second good metal level of plasticity, said the first metal layer combines with said ceramic coating, and said second metal level and said metallic matrix combine.
In preferred embodiment of the present invention, said the first metal layer is tungsten, iron or molybdenum or alloy.
In preferred embodiment of the present invention, said second metal level is copper, aluminum metal or alloy.
In preferred embodiment of the present invention, the thickness of said intermediate connecting layer is 1-2.5mm.
In preferred embodiment of the present invention, said carbide alloy comprises carbide, nitride or the boride of IV B, V B, VI B family metal.
The invention has the beneficial effects as follows: novel metal/ceramic composite of the present invention, through intermediate connecting layer said ceramic coating and metallic matrix are combined closely, intermediate connecting layer can be alleviated the residual stress of coupling part.
Description of drawings
Fig. 1 is the structural representation of metal/ceramic composite one preferred embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
See also Fig. 1, the embodiment of the invention comprises:
A kind of novel metal/ceramic composite; Comprise: metallic matrix 10 and ceramic coating 20; Said metallic matrix 10 is a carbide alloy; Also comprise intermediate connecting layer 30 between said metallic matrix 10 and the said ceramic coating 20, said intermediate connecting layer 30 is a complex metal layer, comprises thermal coefficient of expansion is little, elastic modelling quantity is high the first metal layer 31 and the second good metal level 32 of plasticity; Said the first metal layer 31 combines with said ceramic coating 20, and said second metal level 32 combines with said metallic matrix 10.
Embodiment one
Metallic matrix is the W-Co kind carbide alloy, the metal composite layer of intermediate connecting layer for forming with metallic nickel, titanium and paper tinsel, and thickness is 1.8mm; Ceramic coating is the Si3N pottery; Adopt the welding of solder welding manner to obtain sample one, show, adopt the sample one of intermediate connecting layer to compare with the sample that does not increase intermediate connecting layer through test results such as shearing, stretchings; Stress has obvious decline, and strength of joint has obvious increase simultaneously.
Embodiment two
Metallic matrix is a tungsten titanium niobium series hard alloy, and intermediate connecting layer is the metal composite layer that zirconium/tantalum is formed, and thickness is 1.0mm; Ceramic coating is the Si3N pottery; Adopt the welding of solder welding manner to obtain sample two, show, adopt the sample one of intermediate connecting layer to compare with the sample that does not increase intermediate connecting layer through test results such as shearing, stretchings; Stress has obvious decline, and bonding strength has obvious increase simultaneously.
Metal/ceramic composite of the present invention; Through intermediate connecting layer said ceramic coating and metallic matrix are combined closely; Plasticity as the soft metal of intermediate connecting layer is good, yield strength is low, can alleviate the residual stress of welding point through plastic deformation and creep etc.
The above is merely embodiments of the invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (5)
1. a novel metal/ceramic composite is characterized in that, comprising: metallic matrix and ceramic coating; Said metallic matrix is a carbide alloy; Also comprise intermediate connecting layer between said metallic matrix and the said ceramic coating, said intermediate connecting layer is a complex metal layer, comprises thermal coefficient of expansion is little, elastic modelling quantity is high the first metal layer and the second good metal level of plasticity; Said the first metal layer combines with said ceramic coating, and said second metal level and said metallic matrix combine.
2. novel metal/ceramic composite according to claim 1 is characterized in that, said the first metal layer is tungsten, iron or molybdenum or alloy.
3. novel metal/ceramic composite according to claim 1 is characterized in that, said second metal level is copper, aluminum metal or alloy.
4. novel metal/ceramic composite according to claim 1 is characterized in that, the thickness of said intermediate connecting layer is 1-2.5mm.
5. novel metal/ceramic composite according to claim 1 is characterized in that, said carbide alloy comprises carbide, nitride or the boride of IV B, V B, VI B family metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102824134A CN102774087A (en) | 2012-08-10 | 2012-08-10 | Novel metal and ceramic composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102824134A CN102774087A (en) | 2012-08-10 | 2012-08-10 | Novel metal and ceramic composite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102774087A true CN102774087A (en) | 2012-11-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102824134A Pending CN102774087A (en) | 2012-08-10 | 2012-08-10 | Novel metal and ceramic composite |
Country Status (1)
| Country | Link |
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| CN (1) | CN102774087A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105418133A (en) * | 2015-11-16 | 2016-03-23 | 佛山市高明俊品金属制品有限公司 | Composite containing stainless steel |
| CN105418134A (en) * | 2015-11-16 | 2016-03-23 | 佛山市高明俊品金属制品有限公司 | Stainless steel and ceramic composite material |
| CN111348932A (en) * | 2018-12-24 | 2020-06-30 | 核工业西南物理研究院 | Method for connecting pure tungsten material and insulating ceramic |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5098797A (en) * | 1990-04-30 | 1992-03-24 | General Electric Company | Steel articles having protective duplex coatings and method of production |
| US6177200B1 (en) * | 1996-12-12 | 2001-01-23 | United Technologies Corporation | Thermal barrier coating systems and materials |
| EP1990329A1 (en) * | 2007-05-07 | 2008-11-12 | Siemens Aktiengesellschaft | Two-layered system with pryochlorphases and oxides |
-
2012
- 2012-08-10 CN CN2012102824134A patent/CN102774087A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5098797A (en) * | 1990-04-30 | 1992-03-24 | General Electric Company | Steel articles having protective duplex coatings and method of production |
| US5098797B1 (en) * | 1990-04-30 | 1997-07-01 | Gen Electric | Steel articles having protective duplex coatings and method of production |
| US6177200B1 (en) * | 1996-12-12 | 2001-01-23 | United Technologies Corporation | Thermal barrier coating systems and materials |
| EP1990329A1 (en) * | 2007-05-07 | 2008-11-12 | Siemens Aktiengesellschaft | Two-layered system with pryochlorphases and oxides |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105418133A (en) * | 2015-11-16 | 2016-03-23 | 佛山市高明俊品金属制品有限公司 | Composite containing stainless steel |
| CN105418134A (en) * | 2015-11-16 | 2016-03-23 | 佛山市高明俊品金属制品有限公司 | Stainless steel and ceramic composite material |
| CN105418134B (en) * | 2015-11-16 | 2017-11-14 | 佛山市高明俊品金属制品有限公司 | A kind of composite of stainless steel and ceramics |
| CN111348932A (en) * | 2018-12-24 | 2020-06-30 | 核工业西南物理研究院 | Method for connecting pure tungsten material and insulating ceramic |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121114 |