CN104844206B - A kind of preparation method of high performance microwave medium ceramic material - Google Patents
A kind of preparation method of high performance microwave medium ceramic material Download PDFInfo
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- CN104844206B CN104844206B CN201510196581.5A CN201510196581A CN104844206B CN 104844206 B CN104844206 B CN 104844206B CN 201510196581 A CN201510196581 A CN 201510196581A CN 104844206 B CN104844206 B CN 104844206B
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Abstract
The invention discloses a kind of preparation method of high performance microwave medium ceramic material, first by chemical raw material ZnO, ZrO2、Nb2O5Stoichiometrically formula ZnZrNb2O8Dispensing is weighed, then by ball milling, drying, additional 6~10wt% paraffin sieves after stone roller is even, and compressing is base substrate, and in 1075~1225 DEG C of sintering, microwave dielectric ceramic materials are made.The present invention is on the basis of conventional solid reaction method, optimize preparation technology, its dielectric constant is 22.13~27.21, and quality factor (Q × f) are 37,000~75,000GHz, secondary ball milling and calcine technology are reduced, process cycle is shortened, resource has been saved, and process is pollution-free, have broad application prospects.
Description
Technical field
The present invention is on a kind of electronic information material and component, more particularly to a kind of high performance microwave media ceramic material
The preparation method of material.
Background technology
With the development of mobile communication, the minimizing of microwave device, integrated, high-frequency and cost degradation have turned into
Development trend.Microwave dielectric ceramic materials are due to higher dielectric constant, low-dielectric loss and stable resonant frequency temperature
One of critical material spent coefficient and developed as microwave device.Theoretical and experiment is proved, is made with microwave-medium ceramics
Various microwave devices, such as dielectric resonator, wave filter and microwave-medium antenna be widely used in microwave technology each neck
Domain.
ABNb2O8(A=Zn, Mg, Co, Ni, Mn；B=Ti, Zr) type niobates belongs to microwave dielectric ceramic with medium dielectric constant
System, this kind of microwave-medium ceramics are wide due to preferable microwave dielectric property and relatively low sintering temperature, causing
General concern.Wherein ZnZrNb2O8Microwave-medium ceramics are just reported in recent years, the excellent (ε of its microwave dielectric propertyr=
30.8, Q × f=62500GHz), it is a kind of very novel microwave dielectric material with application prospect.At present, ZnZrNb2O8It is micro-
The preparation of ripple medium ceramic material is mainly comprised the following steps usually using traditional solid reaction process：Ball milling, drying sieving, is forged
Burn, secondary ball milling, drying sieving, shaping, sintering etc..The preparation method step is more, and process cycle is long, particularly secondary ball milling
It is longer with calcining holding time.
The content of the invention
The purpose of the present invention, is to optimize ZnZrNb2O8The preparation method of microwave-medium ceramics is there is provided one kind relative to biography
System technological process, preparation technology is simple, processing step is less, and can obtain the microwave dielectric ceramic materials of higher figure of merit.
The present invention is achieved by following technical solution.
A kind of preparation method of high performance microwave medium ceramic material, has steps of：
(1) by chemical raw material ZnO, ZrO2、Nb2O5Stoichiometrically formula ZnZrNb2O8Weigh dispensing；
(2) chemical raw material for having configured step (1) is mixed, to expect：Deionized water：The mass ratio of zirconium ball is 1：1：1.5
Add in ball grinder, Ball-milling Time is 6~12 hours；
(3) raw material after step (2) ball milling is placed in drying box in 100 DEG C of drying；
(4) the powder China and foreign countries after step (3) drying add the paraffin that mass percent is 6~10%, are placed in resistance furnace
It is upper to grind even, cross 80 mesh sieves；
(5) the powder powder compressing machine after step (4) is sieved is compressing for base substrate；
(6) base substrate of step (5) is incubated 4~6 hours, the micro- of high quality factor is made in 1075~1225 DEG C of sintering
Ripple media ceramic.
The sintering temperature of the step (6) is 1200 DEG C.
The present invention optimizes ZnZrNb on the basis of conventional solid reaction method2O8The preparation work of microwave dielectric ceramic materials
Skill, and improve ZnZrNb2O8The microwave dielectric property of ceramics.The present invention compared with the prior art compared with, reduce secondary ball milling and
Calcine technology, simplifies technological process, shortens process cycle, economizes on resources, and process is pollution-free, before wide application
Scape.The ZnZrNb that the preparation method provided using the present invention is obtained2O8Microwave dielectric ceramic materials, its dielectric constant is 22.13
~27.21, quality factor (Q × f) are 37,000~75,000GHz；Compared with prior art, its quality factor has obtained excellent
Change, improve 10,000GHz.
Embodiment
The present invention is using chemical raw material ZnO (analysis is pure), ZrO2(analysis is pure), Nb2O5(analysis is pure) prepares ZnZrNb2O8It is micro-
Ripple media ceramic.Embodiment is as follows：
(1) by chemical raw material ZnO, ZrO2、Nb2O5Stoichiometrically formula ZnZrNb2O8Weigh dispensing；
(2) chemical raw material configured is mixed, to expect：Deionized water：The mass ratio of zirconium ball is 1：1：1.5 add ball milling
In tank, ball milling 6~12 hours on planetary ball mill；
(3) raw material after ball milling is placed in drying box in 100 DEG C of drying；
(4) the powder China and foreign countries after step (3) drying add the paraffin that mass percent is 10%, are placed on resistance furnace and grind
It is even, cross 80 mesh sieves；
(5) by step (4) sieve after powder again with powder compressing machine by Φ of 8MPa pressure forming 10mm × 5mm
Green body cylinders；
(6) base substrate is incubated 4~6 hours, the microwave-medium ceramics of high quality factor is made in 1075~1225 DEG C of sintering
Material；
Finally, the microwave dielectric ceramic materials of above-mentioned specific embodiment are tested into its microwave dielectric property with Network Analyzer
Energy.
The related process parameters and its microwave dielectric property of the specific embodiment of the invention refer to table 1.
Table 1
Claims (2)
1. a kind of preparation method of high performance microwave medium ceramic material, has steps of：
(1) by chemical raw material ZnO, ZrO2、Nb2O5Stoichiometrically formula ZnZrNb2O8Weigh dispensing；
(2) chemical raw material for having configured step (1) is mixed, with raw material：Deionized water：The mass ratio of zirconium ball is 1：1：1.5 add
Enter in ball grinder, Ball-milling Time is 6~12 hours；
(3) raw material after step (2) ball milling is placed in drying box in 100 DEG C of drying；
(4) the powder China and foreign countries after step (3) drying add the paraffin that mass percent is 6~10%, are placed on resistance furnace and grind
It is even, cross 80 mesh sieves；
(5) the powder powder compressing machine after step (4) is sieved is compressing for base substrate；
(6) base substrate of step (5) is incubated 4~6 hours in 1150~1225 DEG C of sintering, the microwave that high quality factor is made is situated between
Matter ceramics.
2. the preparation method of a kind of high performance microwave medium ceramic material according to claim 1, it is characterised in that described
The sintering temperature of step (6) is 1200 DEG C.
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| CN201510196581.5A CN104844206B (en) | 2015-04-23 | 2015-04-23 | A kind of preparation method of high performance microwave medium ceramic material |
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| CN104844206A CN104844206A (en) | 2015-08-19 |
| CN104844206B true CN104844206B (en) | 2017-07-18 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174949A (en) * | 2015-08-31 | 2015-12-23 | 天津大学 | Low-loss zinc-zirconium-niobium microwave dielectric ceramic |
| CN105272245B (en) * | 2015-10-30 | 2018-01-30 | 天津大学 | One kind prepares low-loss zinc zirconium niobium series microwave dielectric ceramic using reaction sintering |
| CN114656261B (en) * | 2022-03-28 | 2023-06-02 | 电子科技大学 | Medium dielectric constant LTCC microwave dielectric ceramic material and preparation method thereof |
| CN114804897B (en) * | 2022-05-05 | 2023-02-28 | 江苏科技大学 | Sintering aid for ceramic and preparation method thereof, zinc zirconate microwave dielectric ceramic and preparation method thereof |
| CN115010490A (en) * | 2022-06-29 | 2022-09-06 | 安徽大学 | Ultralow-loss niobium zinc zirconate microwave dielectric ceramic material and preparation method thereof |
| CN115124340B (en) * | 2022-06-29 | 2023-02-28 | 安徽大学 | Medium low-loss low-temperature co-fired ceramic material and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1975939A (en) * | 2006-12-04 | 2007-06-06 | 天津大学 | High-dielectric constant microwave dielectric ceramic and producing method thereof |
| CN102153343A (en) * | 2011-01-10 | 2011-08-17 | 天津大学 | Method for preparing high Q-value magnesium titanate base microwave medium ceramics by adopting reactive sintering method |
| CN102603297A (en) * | 2012-04-05 | 2012-07-25 | 天津大学 | Novel low-temperature sintered microwave dielectric ceramic and preparation method thereof |
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2015
- 2015-04-23 CN CN201510196581.5A patent/CN104844206B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1975939A (en) * | 2006-12-04 | 2007-06-06 | 天津大学 | High-dielectric constant microwave dielectric ceramic and producing method thereof |
| CN102153343A (en) * | 2011-01-10 | 2011-08-17 | 天津大学 | Method for preparing high Q-value magnesium titanate base microwave medium ceramics by adopting reactive sintering method |
| CN102603297A (en) * | 2012-04-05 | 2012-07-25 | 天津大学 | Novel low-temperature sintered microwave dielectric ceramic and preparation method thereof |
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