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Process method for preparing ltcc amorphous glass porcelain powder with microwave plasma torch

A plasma torch and amorphous glass technology, which is applied in the field of electronic materials and devices, can solve the problems affecting the purity of LTCC ceramic powder, waste of crucibles, and difficulty in guaranteeing product consistency. Good product consistency

Active Publication Date: 2011-12-14
YUNNAN INFINE NEO MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The quenching effect of this process is uneven, the working temperature is high, and the labor intensity is high. The use of platinum crucibles requires a large investment, and platinum will be dissociated and lost during high-temperature melting, resulting in high production costs for LTCC porcelain powder. It will corrode the ceramic crucible and introduce impurities, which will affect the purity of the LTCC porcelain powder. It is difficult to guarantee the consistency of the product. At the same time, the thermal shock performance of the ceramic crucible is poor, and it is often cracked and broken, resulting in a large amount of crucible waste and industrial waste. Increased product cost

Method used

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  • Process method for preparing ltcc amorphous glass porcelain powder with microwave plasma torch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of microwave plasma torch prepares the processing method of LTCC amorphous glass porcelain powder, it is characterized in that processing steps are as follows:

[0031] A. Batching, mixing, ball milling

[0032] Al 2 o 3 (99%), SiO 2 (99%), B 2 o 3 ·3H 2 O (99%), MgO (99%), ZrO 2 (99%), H 3 PO 4 (80%) were made into glass raw materials according to the weight percentages of 28.58%, 25.47%, 35.21%, 6.90%, 0.50%, and 3.34%. Water and zirconia balls, the weight ratio of glass raw materials to deionized water and zirconia is 1:1:1, and wet ball milling is used for 24 hours;

[0033] B. Drying, granulation, sintering

[0034] After the ball-milled glass raw material is discharged, it is dried and ground at 100°C to form 10-40μm powder, and 10wt% polyvinyl butyral (PVB) aqueous solution is added as a binder, and the concentration of the aqueous solution is 10wt%. , after mixing evenly, use a spinning granulator to granulate into φ2mm particles, after debindi...

Embodiment 2

[0044] A kind of process method of microwave plasma torch preparation LTCC amorphous glass porcelain powder, it is characterized in that process steps are as follows:

[0045] A. Batching, mixing, ball milling

[0046] Al 2 o 3 (99%), SiO 2 (99%), B 2 o 3 ·3H 2 O (99%), MgO (99%), ZrO 2 (99%), H 3 PO 4 (80%), Sb 2 o 3 (99%) and BaO (99%) were formulated into glass raw materials according to the weight percentages of 8.94%, 52.34%, 24.89%, 2.44%, 1.86%, 1.52%, 0.13%, and 7.88%, respectively. The raw material of weighing quality again is small, adds deionized water and zirconia ball, and the weight ratio of glass raw material and dehydrated alcohol, zirconia is 1:1:2, adopts wet ball milling 22 hours;

[0047] B. Drying, granulation, sintering

[0048] After the ball-milled glass raw material is discharged, it is dried and ground at 120°C to form 10-40μm powder, and 5wt% polyvinyl butyral (PVB) aqueous solution is added as a binder, and the concentration of the aqueo...

Embodiment 3

[0058] A kind of process method of microwave plasma torch preparation LTCC amorphous glass porcelain powder, it is characterized in that process steps are as follows:

[0059] A. Batching, mixing, ball milling

[0060] The chemical raw materials BaO (99%), SiO 2 (99%), B 2 o 3 ·3H 2 O (99%), MgO (99%), CaO (99%), ZrO 2 (99%) were made into glass raw materials according to the weight percentages of 8.03%, 28.56%, 17.08%, 4.94%, 22.86%, and 18.53%. Water and zirconia balls, the weight ratio of glass raw materials to deionized water and zirconia is 1:2:4, and wet ball milling is used for 20 hours;

[0061] B. Drying, granulation, sintering

[0062] After the ball-milled glass raw material is discharged, it is dried and ground at 120°C to form 10-40μm powder, and 15wt% polyvinyl alcohol (PVA) aqueous solution (%) is added as a binder. The concentration of the aqueous solution is 8wt%, and mixed After uniformity, use a spinning granulator to granulate into φ3mm particles. Af...

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Abstract

The invention discloses a technological method for preparing LTCC amorphous glass ceramic powder with a microwave plasma torch. The technological method comprises the following steps: mixing raw materials of glass, ball milling, drying, and granulating into particles with diameters of 1-3mm, and sintering into ceramic balls at 650-850DEG C; and rapidly fusing the hot ceramic balls into glass droplets through the microwave plasma torch with the temperature of 3000-5000DEG C, falling into deionized water, chilling to obtain an amorphous glass ceramic material with the particle size of 15-500mum, carrying out wet ball milling, and drying to a product the LTCC amorphous glass ceramic powder. According to the invention, methods for fusing glass with platinum and ceramic crucibles in traditional technologies are abandoned, and the glass droplets are in a suspending state in the process of fusing with the microwave plasma torch and do not contact with any vessels, so the technological methodof the invention which has the advantages of guarantee of the glass purity, convenient operation, uniform glass chilling, obvious effect better than the traditional technologies, good product consistency, and good economy is in favor of the large scale production.

Description

technical field [0001] The invention relates to a preparation method of LTCC amorphous glass porcelain powder, in particular to a process method for preparing LTCC amorphous glass porcelain powder by using a microwave plasma torch, and belongs to the technical field of electronic materials and devices. Background technique [0002] Low Temperature Co-fired Ceramic LTCC (Low Temperature Co-fired Ceramic LTCC) technology is a new type of electronic material and device application technology. holes, mechanical punching, micro-hole grouting, precision conductor paste printing and other processes to produce the required circuit pattern, and multiple passive components (such as low-capacity capacitors, resistors, filters, impedance converters, couplers, etc. ) embedded in a multilayer ceramic substrate, and then stacked together, the inner and outer electrodes can be made of silver, copper, gold and other metals, respectively, and sintered at 900 ° C to make a high-density circuit...

Claims

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Application Information

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IPC IPC(8): C03C12/00
Inventor 周涛赵蜀春
Owner YUNNAN INFINE NEO MATERIAL
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