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Glass-ceramic substrate material and preparation method thereof

A glass-ceramic and substrate technology, applied in glass manufacturing equipment, glass molding, manufacturing tools, etc., can solve the problems of high dielectric constant, poor mechanical properties, application limitations, etc., and achieve low dielectric constant and high quality factor. , the effect of small resonant frequency temperature coefficient

Active Publication Date: 2018-01-12
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the application of existing dielectric materials is limited due to high sintering temperature, high dielectric constant, complex process, or poor mechanical properties.

Method used

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  • Glass-ceramic substrate material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] CaCO 3 , ZnO, NH 4 h 2 PO 4 、H 3 BO 3 、TiO 2 Powder, according to 9.5CaO: 40ZnO: 35.0P 2 o 5 : 15.0B 2 o 3 : 0.5TiO 2 (Mole percent) ratio to calculate the ingredients, and mix these raw materials evenly to make the batch. Put the batch material in a crucible and heat it to 1400°C for 1 hour; then quickly pour the obtained glass liquid into a container filled with water, water quench, dry, and then wet ball mill the dried glass slag into D 50 It is 3~5μm glass powder. Add the prepared glass powder to 3-5% PVA solution, mix evenly, dry, sieve and granulate; then press the granulated glass powder into a green body with a diameter of 10mm and a height of 6mm; place the pressed green body in Electric furnace, with 3 o C / min heating rate up to 600 o C keeps warm for 2 hours to remove glue, and then rises to 760 o C for 2 hours to obtain a glass substrate material with a microcrystalline structure.

[0012] The dielectric constant of the obtained glass-ceramic...

Embodiment 2

[0014] CaCO 3 , ZnO, NH 4 h 2 PO 4 、H 3 BO 3 、TiO 2 Powder, according to 9.0CaO: 42.0ZnO: 35.0P 2 o 5 : 13.0B 2 o 3 : 1.0TiO 2 (Mole percent) ratio to calculate the ingredients, and mix these raw materials evenly to make the batch. Put the batch material in a crucible and heat it to 1400°C for 1 hour; then quickly pour the obtained glass liquid into a container filled with water, water quench, dry, and then wet ball mill the dried glass slag into D 50 It is 3~5μm glass powder. Add the prepared glass powder to 3-5% PVA solution, mix evenly, dry, sieve and granulate; then press the granulated glass powder into a green body with a diameter of 10mm and a height of 6mm; place the pressed green body in Electric furnace, with 3 o C / min heating rate up to 600 o C keeps warm for 2 hours to remove glue, and then rises to 760 o C for 2 hours to obtain a glass substrate material with a microcrystalline structure.

[0015] The dielectric constant of the obtained glass-ceram...

Embodiment 3

[0017] CaCO 3 , ZnO, NH 4 h 2 PO 4 、H 3 BO 3 Powder, according to 10.0CaO: 40.0ZnO: 35.0P 2 o 5 : 15.0B 2 o 3 (Mole percent) ratio to calculate the ingredients, and mix these raw materials evenly to make the batch. Put the batch material in a crucible and heat it to 1400°C for 1 hour; then quickly pour the obtained glass liquid into a container filled with water, water quench, dry, and then wet ball mill the dried glass slag into D 50 It is 3~5μm glass powder. Add the prepared glass powder to 3-5% PVA solution, mix evenly, dry, sieve and granulate; then press the granulated glass powder into a green body with a diameter of 10mm and a height of 6mm; place the pressed green body in Electric furnace, with 3 o C / min heating rate up to 600 o C keeps warm for 2 hours to remove glue, and then rises to 720 o C for 2 hours to obtain a glass substrate material with a microcrystalline structure.

[0018] The dielectric constant of the obtained glass-ceramic substrate materi...

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Abstract

The invention discloses a glass-ceramic substrate material and a preparation method thereof. The material at least comprises 9-10mol% of CaO, 40-42mol% of ZnO, 13-15mol% of B2O3, 35mol% of P2O5 and 0-1.5% of TiO2. The substrate material is a glass-ceramic substrate material with the advantages of low dielectric constant, high quality factor and small resonant frequency temperature coefficient. Therelative dielectric constant (Er) under the test frequency of (13-15GHz) is as low as 4.18-4.76, the absolute value(Tcf) of the resonant frequency temperature coefficient is as low as13-28ppm / oC, andthe quality factor (Q*f) can reach 9100-25000GHz.

Description

technical field [0001] The invention belongs to the field of inorganic non-metallic materials, and in particular relates to a glass-ceramic substrate material and a preparation method thereof. Background technique [0002] With the rapid development of modern communication technology, microwave technology is also expanding to higher frequencies, and the demand for low dielectric constant microwave dielectric materials is increasing. In addition to the requirements of low dielectric loss and low temperature coefficient of resonant frequency, the application field also requires a small dielectric constant. [0003] At present, the low dielectric constant and low loss microwave dielectric materials mainly include Al 2 o 3 system, SiO 2 series, AlN series, glass + ceramic series, etc. However, the application of existing dielectric materials is limited due to high sintering temperature, high dielectric constant, complex process, or poor mechanical properties. It is necess...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/02C03B19/06
Inventor 陈国华姜登辉陈勇习娟夏村村崔三川刘翔宇
Owner GUILIN UNIV OF ELECTRONIC TECH
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