CN103408227B - A kind of amorphous glass powder and Synthesis and applications thereof - Google Patents
A kind of amorphous glass powder and Synthesis and applications thereof Download PDFInfo
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- CN103408227B CN103408227B CN201310313490.6A CN201310313490A CN103408227B CN 103408227 B CN103408227 B CN 103408227B CN 201310313490 A CN201310313490 A CN 201310313490A CN 103408227 B CN103408227 B CN 103408227B
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Abstract
The present invention relates to a kind of amorphous glass powder and Synthesis and applications thereof, its component comprises by mass percentage: BaO10-60%, Al2O31-30%, B2O35-40%, P2O55-40%, MoO31-10%, NiO1-5%, Nd2O31-10%; Its preparation method, comprising: mixed by proportioning by raw material, is then heated to 1200-1650 DEG C, is incubated 0.5-8 hour, then carries out shrend, and last ball milling, to 0.5-5 micron, to obtain final product. The slurry that the amorphous glass powder of the present invention and organic carrier are made and stainless steel substrate bonding force are good, have high resistance to voltage breakdown, good insulating property, meet the requirement of high-power stainless steel substrate thick film circuit dielectric material.
Description
Technical field
The invention belongs to dielectric material field, in particular to a kind of amorphous glass powder and Synthesis and applications thereof.
Background technology
The mechanical property of stainless steel substrate, shock resistance and processability are good, and it has started a revolution in tradition thick film circuit application field. Power stainless steel substrate thick film circuit, except applying as high-power thick-film resistance, also uses as thick film large power, electrically thermoelectric converter, has traditional electrical hot material or the incomparable advantage of element. This electrical heating element is easy for installation and can use under severe environment, is therefore widely used in household electrical appliances and industrial electrical equipment aspect. Application on household electrical appliances is such as electric cooker, electric heating kettle, electric water heater, electric iron, sterilizing-cabinet and hair care device etc., industrial application is such as the heating member of the forming mould of the rear vision mirror of automobile, antifreeze, the rubber of extremely frigid zones rail and plastics, electric boiler etc., and this technology has very wide market outlook and actual application value.
The series electronic slurry being applied to stainless steel substrate makes the power of large power thick film circuit can reach multikilowatt, this requires that dielectric material not only can mate with stainless steel substrate on the coefficient of expansion, and has the requirements such as good insulating property, voltage breakdown height, leakage current be little. At present in actual applications, high-power stainless steel substrate thick film circuit dielectric material is silicon-dioxide series devitrified glass substantially. Silicon-dioxide series devitrified glass is when as insulating medium layer, and in order to reach the electric requirement of large power thick film circuit, thickness is it is generally required to reach 100 microns, often will through 3-4 silk screen printing in making processes, technical process is long, and consumed energy height, production cost is high.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of amorphous glass powder and Synthesis and applications thereof, the slurry that this amorphous glass powder and organic carrier are made, good with stainless steel substrate bonding force, there is high resistance to voltage breakdown, good insulating property, the method is simple to operate.
A kind of amorphous glass powder of the present invention, its component comprises by mass percentage: BaO10-60%, Al2O31-30%, B2O35-40%, P2O55-40%, MoO31-10%, NiO1-5%, Nd2O31-10%��
The raw material sources of described BaO are one or more in barium oxide, hydrated barta, barium carbonate, barium oxalate, nitrate of baryta.
Described Al2O3Raw material sources be one or more in aluminum oxide, aluminium hydroxide.
Described P2O5Raw material sources be one or more in Vanadium Pentoxide in FLAKES, phosphoric acid, ammonium phosphate salt.
Described MoO3Raw material sources be one or more in molybdic oxide, molybdic acid, ammonium molybdate.
The raw material sources of described NiO are one or more in nickel oxide, nickel hydroxide.
The preparation method of a kind of amorphous glass powder of the present invention, comprising:
Being mixed by proportioning by above-mentioned raw materials, be then heated to 1200-1650 DEG C, be incubated 0.5-8 hour, then carry out shrend, last ball milling, to 0.5-5 micron, to obtain final product.
A kind of amorphous glass power applications of the present invention is in preparing stainless steel substrate thick film circuit dielectric material.
Described concrete preparation method is: amorphous glass powder and organic carrier are made slurry, then uses silk screen printing film forming, finally sinter.
Described organic carrier is diethylene glycol monobutyl ether, tributyl citrate, ethyl cellulose, class of department 85,1, the mixture of 4-butyrolactone and hydrogenated castor oil, wherein the weight ratio of diethylene glycol monobutyl ether, tributyl citrate, ethyl cellulose, class of department 85,1,4-butyrolactone and hydrogenated castor oil is 76:10:3:5:5:1.
Useful effect:
In the material, (1) BaO, Al2O3��B2O3��P2O5Form firm non-brilliant network structure, make BaO-Al2O3-B2O3-P2O5-MoO3-NiO-Nd2O3Dielectric material has good hardness and snappiness, can adapt to the requirement of high-power stainless steel substrate thick film circuit work under bad environment.
(2) slurry that this amorphous glass powder and organic carrier are made, good with stainless steel substrate bonding force, there is high resistance to voltage breakdown, good insulating property, at making large power thick film circuit insulating medium layer, can greatly reduce thickness and just can reach service requirements, it is possible to reduce silk screen printing number of times, thus reduce production cost.
(3) preparation technology of the present invention simple to operate, be easy to control, be conducive to realizing large-scale industrial and produce.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further. Limit the scope of the invention it will be understood that these embodiments are only not used in for illustration of the present invention. In addition it will be understood that after having read the content that the present invention lectures, the present invention can be made various changes or modifications by those skilled in the art, and these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment 1
Accurately take 46 grams of BaO, 13 grams of Al2O3: 12 grams of B2O3, 14 grams of P2O5, 5 grams of MoO3, 2 grams of NiO, 8 grams of Nd2O3. Raw material is mixed by proportioning, is placed in high-temperature electric resistance furnace, be heated to 1550 DEG C with the temperature rise rate of 10 DEG C/min, be incubated 2 hours, then carry out shrend. Solid being put into the agate tank of planetary ball mill, then adds deionized water as mixed grinding media, ball milling 2 hours, obtains BaO-Al2O3-B2O3-P2O5-MoO3-NiO-Nd2O3Amorphous glass powder, its median size is 2.5 microns.
Organic carrier is diethylene glycol monobutyl ether, tributyl citrate, ethyl cellulose, class of department 85,1,4-butyrolactone, hydrogenated castor oil, and weight ratio is 76:10:3:5:5:1. Amorphous glass powder and organic carrier are made slurry in the ratio of 3:1, using silk screen printing film forming, after sintering, media coating thickness is 56 microns, voltage breakdown (AC)>1500V, insulation resistance (500V)>10M ��, leakage current (250V)<2mA.
Embodiment 2
Accurately take 43 grams of BaO, 15 grams of Al2O3: 10 grams of B2O3, 19 grams of P2O5, 4 grams of MoO3, 3 grams of NiO, 6 grams of Nd2O3. Raw material is mixed by proportioning, is placed in high-temperature electric resistance furnace, be heated to 1500 DEG C with the temperature rise rate of 10 DEG C/min, be incubated 1.5 hours, then carry out shrend. Solid being put into the agate tank of planetary ball mill, then adds deionized water as mixed grinding media, ball milling 3 hours, obtains BaO-Al2O3-B2O3-P2O5-MoO3-NiO-Nd2O3Amorphous glass powder, its median size is 3 microns. .
Organic carrier is diethylene glycol monobutyl ether, tributyl citrate, ethyl cellulose, class of department 85,1,4-butyrolactone, hydrogenated castor oil, and weight ratio is 76:10:3:5:5:1. Amorphous glass powder and organic carrier are made slurry in the ratio of 3:1, using silk screen printing film forming, after sintering, media coating thickness is 52 microns, voltage breakdown (AC)>1500V, insulation resistance (500V)>10M ��, leakage current (250V)<2mA.
Claims (9)
1. an amorphous glass powder, it is characterised in that: by mass percentage, composed of the following components: BaO10-60%, Al2O313-30%, B2O35-40%, P2O514-40%, MoO31-10%, NiO1-5%, Nd2O31-10%.
2. a kind of amorphous glass powder according to claim 1, it is characterised in that: the raw material sources of described BaO are one or more in barium oxide, hydrated barta, barium carbonate, barium oxalate, nitrate of baryta.
3. a kind of amorphous glass powder according to claim 1, it is characterised in that: described Al2O3Raw material sources be one or more in aluminum oxide, aluminium hydroxide.
4. a kind of amorphous glass powder according to claim 1, it is characterised in that: described P2O5Raw material sources be one or more in Vanadium Pentoxide in FLAKES, phosphoric acid, ammonium phosphate salt.
5. a kind of amorphous glass powder according to claim 1, it is characterised in that: described MoO3Raw material sources be one or more in molybdic oxide, molybdic acid, ammonium molybdate; The raw material sources of described NiO are one or more in nickel oxide, nickel hydroxide.
6. the preparation method of amorphous glass powder as claimed in claim 1, comprising:
Being mixed by proportioning by raw material, be then heated to 1200-1650 DEG C, be incubated 0.5-8 hour, then carry out shrend, last ball milling, to 0.5-5 micron, to obtain final product.
7. amorphous glass power applications as claimed in claim 1 is in preparing stainless steel substrate thick film circuit dielectric material.
8. amorphous glass power applications according to claim 7 is in preparing stainless steel substrate thick film circuit dielectric material, it is characterized in that: concrete preparation method for making slurry by amorphous glass powder and organic carrier, then use silk screen printing film forming, finally sinter.
9. amorphous glass power applications according to claim 8 is in preparing stainless steel substrate thick film circuit dielectric material, it is characterized in that: described organic carrier is diethylene glycol monobutyl ether, tributyl citrate, ethyl cellulose, class of department 85,1, the mixture of 4-butyrolactone and hydrogenated castor oil, wherein the weight ratio of diethylene glycol monobutyl ether, tributyl citrate, ethyl cellulose, class of department 85,1,4-butyrolactone and hydrogenated castor oil is 76:10:3:5:5:1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310313490.6A CN103408227B (en) | 2013-07-23 | 2013-07-23 | A kind of amorphous glass powder and Synthesis and applications thereof |
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| CN201310313490.6A CN103408227B (en) | 2013-07-23 | 2013-07-23 | A kind of amorphous glass powder and Synthesis and applications thereof |
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| CN103408227A CN103408227A (en) | 2013-11-27 |
| CN103408227B true CN103408227B (en) | 2016-06-01 |
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| CN107799373B (en) * | 2017-09-30 | 2019-05-17 | 无锡厚发自动化设备有限公司 | A kind of modified amorphous glass powder and preparation method thereof |
| CN112125527B (en) * | 2020-09-28 | 2022-05-03 | 武汉理工大学 | High-thermal-expansion glass powder for copper slurry and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5998037A (en) * | 1997-12-22 | 1999-12-07 | Ferro Corporation | Porcelain enamel composition for electronic applications |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5998037A (en) * | 1997-12-22 | 1999-12-07 | Ferro Corporation | Porcelain enamel composition for electronic applications |
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