CN101186518A - Microwave connection method for zirconium oxide plasticizing mullite ceramic - Google Patents
Microwave connection method for zirconium oxide plasticizing mullite ceramic Download PDFInfo
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- CN101186518A CN101186518A CNA2007101510444A CN200710151044A CN101186518A CN 101186518 A CN101186518 A CN 101186518A CN A2007101510444 A CNA2007101510444 A CN A2007101510444A CN 200710151044 A CN200710151044 A CN 200710151044A CN 101186518 A CN101186518 A CN 101186518A
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- zirconium oxide
- connection method
- microwave
- mullite ceramic
- microwave connection
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Abstract
The invention relates to a microwave joining method of a zirconia-toughened mullite. The method adopts a connection layer containing Al, SiC, Al2O3and ZrO2 to produce a paste shape to be smeared at a joint interface; microwave heating is carried out through the interface position, therefore, the interface has high strength connection with composition similar to ZTM.
Description
Technical field
The invention belongs to pottery and ceramic interconnection technique field, particularly relate to a kind of microwave connection method of zirconium oxide plasticizing mullite ceramic.
Background technology
ZTM (ZTM) pottery has certain normal temperature toughness, high temperature resistant creep, resistance to high temperature oxidation, especially near the characteristic that occurs hot strength " take-off " 1300 ℃ is near the best selection that envrionment temperature is used member a lot of 1300 ℃.At some special occasions, need the ZTM pottery is prepared into the elongated tubular member, as long roll of metallurgical hot rolling or hot metal liquid transport pipe.Existing forming process of ceramics and sintering technology can not satisfy the preparation above the certain-length ceramic component, often need can realize by the ceramic interconnection technique of metalloid welding technique the preparation of overlength, large size or complicated shape ceramic component.Existing various ceramic interconnection techniques generally all need member and joint face heated simultaneously and could realize the ceramic component purpose of connecting, and during consumption energy consumption, the size of connection still has limitation.
Summary of the invention
For overcoming the deficiency in the above-mentioned technical background, the present invention proposes a kind of microwave connection method of zirconium oxide plasticizing mullite ceramic, utilize metal to form oxide ceramics characteristics mutually with the non-oxide ceramics oxidation, and microwave is to the selectivity heat characteristic of different components, realize the local microwave heating welding in contact place of ZTM pottery, for the preparation of overlength ZTM member provides the low-cost high-efficiency technology of preparing.
The present invention realizes by the following method: adopt containing metal Al, SiC, Al
2O
3And ZrO
2The articulamentum of component is formed, and is prepared into paste and spreads upon linkage interface, applies microwave heating by interface locations, can realize that the high strength that has at the interface with the close composition of ZTM is connected.
In aforesaid method, the part by weight of articulamentum initial composition is Al: SiC: Al
2O
3: ZrO
2=(10-20): (30-50): (0-20): (10-30).
In aforesaid method, the granularity of SiC component is 0.05-1.2 μ m.
In aforesaid method, the granularity of Al component is 1-2 μ m.
In aforesaid method, Al
2O
3The granularity of component is 0.1-0.8 μ m.
In aforesaid method, ZrO
2The granularity of component is 0.02-0.5 μ m.
In aforesaid method, connect to form hybrid modulation and become paste to realize by the aqueous solution that adds polyvinyl alcohol and aluminium dihydrogen phosphate.
The positively effect of the microwave connection method of a kind of zirconium oxide plasticizing mullite ceramic that the present invention proposes is: components selection adds hot tie-in near can realizing articulamentum, and articulamentum has the composition identical and close with connected body.
Its know-why is: metal A l can be suitable for the filling at uneven place, linkage interface place in 600 left and right sides fusions, oxidizing reaction takes place subsequently generate Al
2O
3Component, and follow volumetric expansion; SiC forms SiO 600-900 ℃ of oxidation
2, also follow the volume bulking effect; The volumetric expansion effect of above-mentioned two kinds of oxidation reaction is beneficial to the densification of interfacial layer and eliminates defective, simultaneously the oxidation products Al of the two
2O
3And SiO
2Form mullite at 1300 ℃; Adjust that original components content can make behind the articulamentum sintering component and to be connected the ZTM component identical or close; The particularly important is, SiC in the original composition has the characteristic that normal temperature absorbs microwave, intermediate connecting layer is heated prior to connected body rapidly under microwave action, and before 500 ℃, oxide compound absorb microwave a little less than, after the SiC oxidation, articulamentum has reached more than 500 ℃, starts oxide compound and absorbs microwave and realized that by continuous heating the densification of articulamentum connects; And the ZTM connected body is owing to lack the microwave starting effect of SiC, and the microwave absorbing weak effect can not be heated to high temperature always.By the ZTM member that such scheme connects into, the linkage interface place has close with connected body even is higher than the strength of joint of connected body.
Embodiment
Embodiment 1:
Adopting the 20wt% mean particle size is the SiC of metal A l, the 35wt% mean particle size 0.08 μ m of 1.5 μ m, the Al of 15wt% mean particle size 0.5 μ m
2O
3, 30wt% mean particle size 0.2 μ m zirconium white, the polyvinyl alcohol water solution that adds 5wt% concentration accounts for the 2wt% that the 8wt% of gross weight, aluminium dihydrogen phosphate account for gross weight, evenly grind to form paste, be applied in two ZTM potteries and be connected the surface, the effect of two ZTM potteries by polyvinyl alcohol and aluminium dihydrogen phosphate at room temperature is connected, after the seasoning, place microwave field, apply 3kw power effect 0.5 hour, can make the articulamentum temperature reach 1500 ℃ of realizations and successfully connect strength of joint 430MPa.
Embodiment 2:
Adopting the 20wt% mean particle size is the metal A l of 1.5 μ m, the SiC of 50wt% mean particle size 0.08 μ m, the zirconium white of 30wt% mean particle size 0.2 μ m, the polyvinyl alcohol water solution that adds 5wt% concentration accounts for the 6wt% of gross weight, aluminium dihydrogen phosphate accounts for the 2wt% of gross weight, evenly grind to form paste, be applied in two ZTM potteries and be connected the surface, the effect of two ZTM potteries by polyvinyl alcohol and aluminium dihydrogen phosphate at room temperature is connected, after the seasoning, place microwave field, apply 1kw power effect 0.5 hour, can make the articulamentum temperature reach 1200 ℃ of realizations and successfully connect strength of joint 310MPa.
Claims (6)
1. the microwave connection method of a zirconium oxide plasticizing mullite ceramic is characterized in that, adopts containing metal Al, SiC, Al
2O
3And ZrO
2The articulamentum of component is formed, and is prepared into paste and spreads upon linkage interface, applies microwave heating by interface locations, can realize that the high strength that has at the interface with the close composition of ZTM is connected.
2. according to the microwave connection method of the described a kind of zirconium oxide plasticizing mullite ceramic of claim 1, it is characterized in that the part by weight of articulamentum initial composition is Al: SiC: Al
2O
3: ZrO
2=(10-20): (30-50): (0-20): (10-30).
3. according to the microwave connection method of the described a kind of zirconium oxide plasticizing mullite ceramic of claim 1, it is characterized in that the granularity of SiC component is 0.05-1.2 μ m.
4. according to the microwave connection method of the described a kind of zirconium oxide plasticizing mullite ceramic of claim 1, it is characterized in that Al
2O
3The granularity of component is 0.1-0.8 μ m.
5. according to the microwave connection method of the described a kind of zirconium oxide plasticizing mullite ceramic of claim 1, it is characterized in that ZrO
2The granularity of component is 0.02-0.5 μ m.
6. according to the microwave connection method of the described a kind of zirconium oxide plasticizing mullite ceramic of claim 1, it is characterized in that, connect to form hybrid modulation and become paste to realize by the aqueous solution that adds polyvinyl alcohol and aluminium dihydrogen phosphate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101510444A CN101186518A (en) | 2007-12-14 | 2007-12-14 | Microwave connection method for zirconium oxide plasticizing mullite ceramic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101510444A CN101186518A (en) | 2007-12-14 | 2007-12-14 | Microwave connection method for zirconium oxide plasticizing mullite ceramic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101186518A true CN101186518A (en) | 2008-05-28 |
Family
ID=39479178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101510444A Pending CN101186518A (en) | 2007-12-14 | 2007-12-14 | Microwave connection method for zirconium oxide plasticizing mullite ceramic |
Country Status (1)
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|---|---|
| CN (1) | CN101186518A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109721379A (en) * | 2019-03-14 | 2019-05-07 | 大连海事大学 | A method of use AlON powder as raw material connection AlON ceramics |
| CN109912300A (en) * | 2019-05-06 | 2019-06-21 | 永州明睿陶瓷科技有限公司 | A kind of low-density high-heat resistance shock resistant composite ceramic material and preparation method thereof and preparation method |
-
2007
- 2007-12-14 CN CNA2007101510444A patent/CN101186518A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109721379A (en) * | 2019-03-14 | 2019-05-07 | 大连海事大学 | A method of use AlON powder as raw material connection AlON ceramics |
| CN109912300A (en) * | 2019-05-06 | 2019-06-21 | 永州明睿陶瓷科技有限公司 | A kind of low-density high-heat resistance shock resistant composite ceramic material and preparation method thereof and preparation method |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20080528 |