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Amorphous glass powder, and preparation method and applications thereof

A technology of amorphous glass and powder, applied in the field of amorphous glass powder and its preparation and application, can solve the problems of long process flow, high energy consumption, high production cost, etc., achieve simple preparation process operation, good bonding force, reduce The effect of film thickness

Inactive Publication Date: 2013-11-27
NINGBO POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When silica series glass-ceramic is used as an insulating medium layer, in order to meet the electrical requirements of high-power thick-film circuits, the film thickness generally needs to reach about 100 microns. Long process, high energy consumption and high production cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Accurately weigh 46 grams of BaO, 13 grams of Al 2 o 3 : 12g B 2 o 3 , 14 g P 2 o 5 , 5 g MoO 3 , 2 g NiO, 8 g Nd 2 o 3 . The raw materials are mixed evenly according to the proportion, placed in a high-temperature electric furnace, heated to 1550°C at a heating rate of 10°C / min, kept for 2 hours, and then water quenched. Put the solid into the agate tank of the planetary ball mill, then add deionized water as the mixing medium, and ball mill for 2 hours to obtain BaO-Al 2 o 3 -B 2 o 3 -P 2 o 5 -MoO 3 -NiO-Nd 2 o 3 Amorphous glass powder with an average particle size of about 2.5 microns.

[0023] The organic carrier is butyl carbitol, tributyl citrate, ethyl cellulose, Span 85, 1,4-butyrolactone, hydrogenated castor oil, and the weight ratio is 76:10:3:5:5:1 . Make a paste of amorphous glass powder and organic carrier in a ratio of 3:1, and use screen printing to form a film. After sintering, the thickness of the dielectric film layer is 56 microns, ...

Embodiment 2

[0025] Accurately weigh 43 grams of BaO, 15 grams of Al 2 o 3 : 10g B 2 o 3 , 19 g P 2 o 5 , 4 g MoO 3 , 3 g NiO, 6 g Nd 2 o 3 . The raw materials are mixed evenly according to the proportion, placed in a high-temperature electric furnace, heated to 1500°C at a heating rate of 10°C / min, kept for 1.5 hours, and then quenched in water. Put the solid into the agate tank of the planetary ball mill, then add deionized water as the mixing medium, and ball mill for 3 hours to obtain BaO-Al 2 o 3 -B 2 o 3 -P 2 o 5 -MoO 3 -NiO-Nd 2 o 3 Amorphous glass powder with an average particle size of about 3 microns. .

[0026] The organic carrier is butyl carbitol, tributyl citrate, ethyl cellulose, Span 85, 1,4-butyrolactone, hydrogenated castor oil, and the weight ratio is 76:10:3:5:5:1 . Make a slurry of amorphous glass powder and organic carrier at a ratio of 3:1, and use screen printing to form a film. After sintering, the thickness of the dielectric film is 52 microns,...

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Abstract

The invention discloses an amorphous glass powder, and a preparation method and applications thereof. The amorphous glass powder comprises following raw materials, by mass, 10 to 60% of BaO, 1 to 30% of Al2O3, 5 to 40% of B2O3, 5 to 40% of P2O5, 1 to 10% of MoO3, 1 to 5% of NiO, and 1 to 10% of Nd2O3. The preparation method comprises following steps: the raw materials are mixed at the ratio; the mixture is heated to 1200 to 1650 DEG C, and the temperature is kept for 0.5 to 8h; and the mixture is subjected to water quenching, and is grinded into powder with a diameter of 0.5 to 5 microns by ball milling so as to obtain the amorphous glass powder. A slurry made of the amorphous glass powder and an organic carrier possess excellent adhesiveness on stainless steel substrates; the breakdown voltage of the slurry is high, and insulating properties of the slurry are excellent; and the slurry is capable of meeting the requirements for thick film circuit insulating medium materials of high-power stainless steel substrates.

Description

technical field [0001] The invention belongs to the field of insulating dielectric materials, in particular to an amorphous glass powder and its preparation and application. Background technique [0002] The stainless steel substrate has good mechanical properties, impact resistance and processability, which has set off a revolution in the traditional thick film circuit application field. In addition to being used as a high-power thick-film resistor, the power stainless steel substrate thick-film circuit is also used as a thick-film high-power electric heating element, which has incomparable advantages over traditional electric heating materials or elements. The heating element is easy to install and can be used in harsh environments, so it is widely used in household appliances and industrial appliances. Applications in home appliances such as rice cookers, electric kettles, electric water heaters, electric irons, disinfection cabinets and hairdressing devices, etc., indus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C12/00
Inventor 袁正勇
Owner NINGBO POLYTECHNIC
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