CN105236966A - Low-temperature-sintered zinc-titanium-niobium-series microwave dielectric ceramic - Google Patents

Low-temperature-sintered zinc-titanium-niobium-series microwave dielectric ceramic Download PDF

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CN105236966A
CN105236966A CN201510546874.1A CN201510546874A CN105236966A CN 105236966 A CN105236966 A CN 105236966A CN 201510546874 A CN201510546874 A CN 201510546874A CN 105236966 A CN105236966 A CN 105236966A
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microwave dielectric
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dielectric ceramic
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张平
赵永贵
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Tianjin University
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Tianjin University
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Abstract

The invention discloses a low-temperature-sintered zinc-titanium-niobium-series microwave dielectric ceramic which is composed of Zn<0.5>Ti<0.5>NbO<4-x>LBS, wherein the LBS is an additive sintering aid and the x refers to mass percentage content, 1% <= x <= 4%. The LBS includes 50 wt% of Li2CO3, 40.24 wt% of B2O3 and 9.76 wt% of SiO2. The microwave dielectric ceramic is prepared through following steps: preparing the material according to the molar ratio of ZnO, TiO2, Nb2O5 to obtain a mixture, ball-milling and drying the mixture, pre-sintering the mixture at 900-1000 DEG C, adding the additive sintering aid for secondary material preparation, and finally sintering the mixture at 850-950 DEG C. The microwave dielectric ceramic is simple in preparation process without pollution. The preparation method is successfully reduced to less than 950 DEG C in sintering temperature with a high dielectric constant 33.66 and a high quality factor 33300 GHz maintained. The microwave dielectric ceramic is an excellent LTCC (low temperature co-fired ceramic) material.

Description

A kind of low-temperature sintering zinc titanium niobium series microwave dielectric ceramic
Technical field
The invention belongs to a kind of take composition as the ceramic composition of feature, particularly a kind of novel low-temperature sintering Zn 0.5ti 0.5nbO 4series microwave dielectric ceramic and preparation method thereof.
Background technology
Developing rapidly of present mobile communication, promotes all kinds of microwave mobile communication terminating unit fast-developing to the direction of miniaturization, lightweight, multifunction and cost degradation.Can effectively reduce device volume with the multi-layer structure design based on LTCC (low-temperatureco-firedceramic, LTCC) technology, be realize components and parts to miniaturization, integrated and modular important channel.LTCC technology adopts multilayered structure, requires that microwave dielectric material can realize burning altogether with high conductivity and cheap silver electrode (961 DEG C).Therefore, require that the sintering temperature for the microwave dielectric material be used on microwave device will below 950 DEG C.Usual interpolation low melting point oxide or glass sintering auxiliary agent are a kind of modal methods reducing sintering temperature to reduce the sintering temperature of microwave dielectric material.
The Zn of manganese tantalum mount structure 0.5ti 0.5nbO 4be a kind of novel microwave dielectric material with superior microwave dielectric property, its specific inductivity is 43, Qf value is 42500GHz, and temperature coefficient of resonance frequency is-52ppm/ DEG C, but sintering temperature is 1200 DEG C.Its higher sintering temperature causes it can not apply in LTCC technology.The present invention adopts conventional solid-state method, under the condition of adding fusing assistant, prepares low sintering Zn 0.5ti 0.5nbO 4microwave-medium ceramics.
Therefore, the present invention adopts conventional solid-state method, under the condition of adding fusing assistant, prepares low sintering Zn 0.5ti 0.5nbO 4microwave-medium ceramics, to meet its utilization in LTCC technology.
Summary of the invention
The object of the invention is with ZnO, TiO 2, Nb 2o 5for main raw material, additional 1%-4%LBS glass, as sintering aid, makes zinc titanium niobium series microwave dielectric ceramic sintering temperature successfully be reduced to less than 950 DEG C, keeps the microwave dielectric property of its excellence simultaneously.
The present invention is achieved by following technical solution.
A kind of low-temperature sintering zinc titanium niobium series microwave dielectric ceramic, it consists of Zn 0.5ti 0.5nbO 4-xLBS, wherein LBS is additional sintering aid, and x is the mass percentage content of additional sintering aid, 1%≤x≤4%;
Described LBS is 50wt%Li 2cO 3– 40.24wt%B 2o 3– 9.76wt%SiO 2;
The preparation method of above-mentioned zinc titanium niobium series microwave dielectric ceramic, has following steps:
(1) by ZnO, TiO 2, Nb 2o 5raw material, by chemical formula Zn 0.5ti 0.5nbO 4prepare burden; In raw material: deionized water: the ratio of abrading-ball=1:16:15 adds in polyester tank, ball milling 6 ~ 8 hours on ball mill;
(2) raw material after step (1) ball milling is placed in loft drier in 80 ~ 130 DEG C of oven dry, crosses 40 mesh sieves after drying, obtain evengranular powder;
(3) powder step (2) mixed was 900 ~ 1000 DEG C of pre-burnings 4 hours;
(4) ceramic powder after step (3) being calcined puts into polyester tank, and additional massfraction is that the LBS of x=1%-4% mixes with the powder after calcining, then adds deionized water and zirconia ball, ball milling 6-8 hour; After oven dry in ceramic powder added weight per-cent be 6 ~ 8% paraffin carry out granulation as tackiness agent, cross 80 mesh sieves, then be shaped to base substrate with powder compressing machine, then by green compact in 850 ~ 950 DEG C of sintering, be incubated 2 ~ 5 hours, obtained zinc titanium niobium series microwave dielectric ceramic;
(5) microwave dielectric property of the zinc titanium niobium series microwave dielectric ceramic that test is obtained.
ZnO, TiO of described step (1) 2, Nb 2o 5the purity of raw material is greater than 99.9%.
Described step (3) calcined temperature is 900 DEG C.
The x=2% of described step (4).
The sintering temperature of described step (4) is 925 DEG C, is incubated 4 hours.
The operating pressure of the tabletting machine of described step (4) is 7MPa, and base substrate specification is the right cylinder of Φ 10mm × 5mm.
The present invention is with Zn 0.5ti 0.5nbO 4based on microwave-medium ceramics, additional LBS sintering aid, is successfully reduced to less than 950 DEG C by its sintering temperature, and having prepared specific inductivity is 33.66, quality factor 33300GHz, and temperature coefficient of resonance frequency is the microwave-medium ceramics of-58.10ppm/ DEG C.In addition, this preparation technology is simple, and process is pollution-free, improves its temperature coefficient of resonance frequency, is a kind of promising LTCC microwave dielectric material.
Embodiment
The present invention adopts purity to be greater than chemical feedstocks ZnO, TiO of 99.9% 2, Nb 2o 5preparation Zn 0.5ti 0.5nbO 4microwave-medium ceramics.
The present invention is by ZnO, TiO 2, Nb 2o 5chemical formula Zn pressed by raw material 0.5ti 0.5nbO 4prepare burden, materials: deionized water: the ratio of abrading-ball=1:16:15 adds in polyester tank, ball milling 6 ~ 12 hours; Raw material after ball milling is placed in infrared drying oven in 80 ~ 130 DEG C of oven dry, crosses 40 mesh sieves, then in 900 ~ 1000 DEG C of pre-burnings 4 hours; Again the ceramic powder after pre-burning is put into ball grinder, taking mass percent is powder after the LBS sintering aid of 1%-4% adds pre-burning, then adds zirconia ball and deionized water ball milling 6 ~ 12 hours post-dryings; Again in ceramic powder after the drying added weight per-cent be 6 ~ 8% paraffin wax binder carry out granulation, after crossing 80 mesh sieves, under the pressure of 7MPa, powder being pressed into diameter with powder compressing machine is 10mm, and thickness is the green compact of 5mm; By green compact at 850 ~ 950 DEG C of sintering, be incubated 2 ~ 5 hours, obtained microwave-medium ceramics; Finally by the microwave dielectric property of network analyzer and dependence test fixture test article.
The specific embodiment of the invention is as follows.
Embodiment 1
1. according to microwave-medium ceramics component Zn 0.5ti 0.5nbO 4, claim ZnO-3.8116g, TiO 2-3.7402g, Nb 2o 5--12.4482g prepares burden, altogether 20g; Mixed powder adds in polyester tank, after adding 160ml deionized water and 150g zirconium ball, and ball milling 6 hours on planetary ball mill, drum's speed of rotation is 1000 revs/min;
2. the raw material after ball milling is placed in loft drier, dries in 120 DEG C and cross 40 mesh sieves, obtaining evengranular powder;
3. powder is calcined 4 hours in 900 DEG C;
4. by calcining after powder put into polyester tank, then take massfraction be 1% LBS-0.2000g with calcining after powder mix, secondary ball milling 6 hours, discharging post-drying, mistake 40 mesh sieves; Then add weight percent be 6% paraffin carry out granulation as tackiness agent, and cross 80 mesh sieves; Be pressed into diameter for 10mm with powder compressing machine with the pressure of 7MPa again, thickness is the base substrate of 5mm;
5. by base substrate in 925 DEG C of sintering, be incubated 4 hours, obtained microwave-medium niobic acid neodymium pottery;
Finally, by network analyzer and dependence test fixture test gained sample microwave property.
Embodiment 2
1. according to microwave-medium ceramics component Zn 0.5ti 0.5nbO 4, claim ZnO-3.8116g, TiO 2-3.7402g, Nb 2o 5--12.4482g prepares burden, altogether 20g; Mixed powder adds in polyester tank, after adding 160ml deionized water and 150g zirconium ball, and ball milling 6 hours on planetary ball mill, drum's speed of rotation is 1000 revs/min;
2. the raw material after ball milling is placed in loft drier, dries in 120 DEG C and cross 40 mesh sieves, obtaining evengranular powder;
3. powder is calcined 4 hours in 900 DEG C;
4. by calcining after powder put into polyester tank, then take massfraction be 2% LBS-0.4000g with calcining after powder mix, secondary ball milling 6 hours, discharging post-drying, mistake 40 mesh sieves; Then add weight percent be 6% paraffin carry out granulation as tackiness agent, and cross 80 mesh sieves; Be pressed into diameter for 10mm with powder compressing machine with the pressure of 7MPa again, thickness is the base substrate of 5mm;
5. by base substrate in 925 DEG C of sintering, be incubated 4 hours, obtained microwave-medium niobic acid neodymium pottery;
Finally, by network analyzer and dependence test fixture test gained sample microwave property.
Embodiment 3
1. according to microwave-medium ceramics component Zn 0.5ti 0.5nbO 4, claim ZnO-3.8116g, TiO 2-3.7402g, Nb 2o 5--12.4482g prepares burden, altogether 20g; Mixed powder adds in polyester tank, after adding 160ml deionized water and 150g zirconium ball, and ball milling 6 hours on planetary ball mill, drum's speed of rotation is 1000 revs/min;
2. the raw material after ball milling is placed in loft drier, dries in 120 DEG C and cross 40 mesh sieves, obtaining evengranular powder;
3. powder is calcined 4 hours in 900 DEG C;
4. by calcining after powder put into polyester tank, then take massfraction be 3% LBS-0.6000g with calcining after powder mix, secondary ball milling 6 hours, discharging post-drying, mistake 40 mesh sieves; Then add weight percent be 6% paraffin carry out granulation as tackiness agent, and cross 80 mesh sieves; Be pressed into diameter for 10mm with powder compressing machine with the pressure of 7MPa again, thickness is the base substrate of 5mm;
5. by base substrate in 925 DEG C of sintering, be incubated 4 hours, obtained microwave-medium niobic acid neodymium pottery;
Finally, by network analyzer and dependence test fixture test gained sample microwave property.
Embodiment 4
1. according to microwave-medium ceramics component Zn 0.5ti 0.5nbO 4, claim ZnO-3.8116g, TiO 2-3.7402g, Nb 2o 5--12.4482g prepares burden, altogether 20g; Mixed powder adds in polyester tank, after adding 160ml deionized water and 150g zirconium ball, and ball milling 6 hours on planetary ball mill, drum's speed of rotation is 1000 revs/min;
2. the raw material after ball milling is placed in loft drier, dries in 120 DEG C and cross 40 mesh sieves, obtaining evengranular powder;
3. powder is calcined 4 hours in 900 DEG C;
4. by calcining after powder put into polyester tank, then take massfraction be 4% LBS-0.8000g with calcining after powder mix, secondary ball milling 6 hours, discharging post-drying, mistake 40 mesh sieves; Then add weight percent be 6% paraffin carry out granulation as tackiness agent, and cross 80 mesh sieves; Be pressed into diameter for 10mm with powder compressing machine with the pressure of 7MPa again, thickness is the base substrate of 5mm;
5. by base substrate in 925 DEG C of sintering, be incubated 4 hours, obtained microwave-medium niobic acid neodymium pottery;
Finally, by network analyzer and dependence test fixture test gained sample microwave property.
Embodiment 5
1. according to microwave-medium ceramics component Zn 0.5ti 0.5nbO 4, claim ZnO-3.8116g, TiO 2-3.7402g, Nb 2o 5--12.4482g prepares burden, altogether 20g; Mixed powder adds in polyester tank, after adding 160ml deionized water and 150g zirconium ball, and ball milling 6 hours on planetary ball mill, drum's speed of rotation is 1000 revs/min;
2. the raw material after ball milling is placed in loft drier, dries in 120 DEG C and cross 40 mesh sieves, obtaining evengranular powder;
3. powder is calcined 4 hours in 900 DEG C;
4. by calcining after powder put into polyester tank, then take massfraction be 2% LBS-0.4000g with calcining after powder mix, secondary ball milling 6 hours, discharging post-drying, mistake 40 mesh sieves; Then add weight percent be 6% paraffin carry out granulation as tackiness agent, and cross 80 mesh sieves; Be pressed into diameter for 10mm with powder compressing machine with the pressure of 7MPa again, thickness is the base substrate of 5mm;
5. by base substrate in 850 DEG C of sintering, be incubated 4 hours, obtained microwave-medium niobic acid neodymium pottery;
Finally, by network analyzer and dependence test fixture test gained sample microwave property.
Embodiment 6
1. according to microwave-medium ceramics component Zn 0.5ti 0.5nbO 4, claim ZnO-3.8116g, TiO 2-3.7402g, Nb 2o 5--12.4482g prepares burden, altogether 20g; Mixed powder adds in polyester tank, after adding 160ml deionized water and 150g zirconium ball, and ball milling 6 hours on planetary ball mill, drum's speed of rotation is 1000 revs/min;
2. the raw material after ball milling is placed in loft drier, dries in 120 DEG C and cross 40 mesh sieves, obtaining evengranular powder;
3. powder is calcined 4 hours in 900 DEG C;
4. by calcining after powder put into polyester tank, then take massfraction be 2% LBS-0.4000g with calcining after powder mix, secondary ball milling 6 hours, discharging post-drying, mistake 40 mesh sieves; Then add weight percent be 6% paraffin carry out granulation as tackiness agent, and cross 80 mesh sieves; Be pressed into diameter for 10mm with powder compressing machine with the pressure of 7MPa again, thickness is the base substrate of 5mm;
5. by base substrate in 875 DEG C of sintering, be incubated 4 hours, obtained microwave-medium niobic acid neodymium pottery;
Finally, by network analyzer and dependence test fixture test gained sample microwave property.
Embodiment 7
1. according to microwave-medium ceramics component Zn 0.5ti 0.5nbO 4, claim ZnO-3.8116g, TiO 2-3.7402g, Nb 2o 5--12.4482g prepares burden, altogether 20g; Mixed powder adds in polyester tank, after adding 160ml deionized water and 150g zirconium ball, and ball milling 6 hours on planetary ball mill, drum's speed of rotation is 1000 revs/min;
2. the raw material after ball milling is placed in loft drier, dries in 120 DEG C and cross 40 mesh sieves, obtaining evengranular powder;
3. powder is calcined 4 hours in 900 DEG C;
4. by calcining after powder put into polyester tank, then take massfraction be 2% LBS-0.4000g with calcining after powder mix, secondary ball milling 6 hours, discharging post-drying, mistake 40 mesh sieves; Then add weight percent be 6% paraffin carry out granulation as tackiness agent, and cross 80 mesh sieves; Be pressed into diameter for 10mm with powder compressing machine with the pressure of 7MPa again, thickness is the base substrate of 5mm;
5. by base substrate in 900 DEG C of sintering, be incubated 4 hours, obtained microwave-medium niobic acid neodymium pottery;
Finally, by network analyzer and dependence test fixture test gained sample microwave property.
Embodiment 8
1. according to microwave-medium ceramics component Zn 0.5ti 0.5nbO 4, claim ZnO-3.8116g, TiO 2-3.7402g, Nb 2o 5--12.4482g prepares burden, altogether 20g; Mixed powder adds in polyester tank, after adding 160ml deionized water and 150g zirconium ball, and ball milling 6 hours on planetary ball mill, drum's speed of rotation is 1000 revs/min;
2. the raw material after ball milling is placed in loft drier, dries in 120 DEG C and cross 40 mesh sieves, obtaining evengranular powder;
3. powder is calcined 4 hours in 900 DEG C;
4. by calcining after powder put into polyester tank, then take massfraction be 2% LBS-0.4000g with calcining after powder mix, secondary ball milling 6 hours, discharging post-drying, mistake 40 mesh sieves; Then add weight percent be 6% paraffin carry out granulation as tackiness agent, and cross 80 mesh sieves; Be pressed into diameter for 10mm with powder compressing machine with the pressure of 7MPa again, thickness is the base substrate of 5mm;
5. by base substrate in 950 DEG C of sintering, be incubated 4 hours, obtained microwave-medium niobic acid neodymium pottery;
Finally, by network analyzer and dependence test fixture test gained sample microwave property.
Embodiment 9
1. according to microwave-medium ceramics component Zn 0.5ti 0.5nbO 4, claim ZnO-3.8116g, TiO 2-3.7402g, Nb 2o 5--12.4482g prepares burden, altogether 20g; Mixed powder adds in polyester tank, after adding 160ml deionized water and 150g zirconium ball, and ball milling 6 hours on planetary ball mill, drum's speed of rotation is 1000 revs/min;
2. the raw material after ball milling is placed in loft drier, dries in 120 DEG C and cross 40 mesh sieves, obtaining evengranular powder;
3. powder is calcined 4 hours in 1000 DEG C;
4. by calcining after powder put into polyester tank, then take massfraction be 2% LBS-0.4000g with calcining after powder mix, secondary ball milling 6 hours, discharging post-drying, mistake 40 mesh sieves; Then add weight percent be 6% paraffin carry out granulation as tackiness agent, and cross 80 mesh sieves; Be pressed into diameter for 10mm with powder compressing machine with the pressure of 7MPa again, thickness is the base substrate of 5mm;
5. by base substrate in 925 DEG C of sintering, be incubated 4 hours, obtained microwave-medium niobic acid neodymium pottery;
Finally, by network analyzer and dependence test fixture test gained sample microwave property.
Embodiment 10
1. according to microwave-medium ceramics component Zn 0.5ti 0.5nbO 4, claim ZnO-3.8116g, TiO 2-3.7402g, Nb 2o 5--12.4482g prepares burden, altogether 20g; Mixed powder adds in polyester tank, after adding 160ml deionized water and 150g zirconium ball, and ball milling 8 hours on planetary ball mill, drum's speed of rotation is 1000 revs/min;
2. the raw material after ball milling is placed in loft drier, dries in 120 DEG C and cross 40 mesh sieves, obtaining evengranular powder;
3. powder is calcined 4 hours in 900 DEG C;
4. by calcining after powder put into polyester tank, then take massfraction be 2% LBS-0.4000g with calcining after powder mix, secondary ball milling 6 hours, discharging post-drying, mistake 40 mesh sieves; Then add weight percent be 6% paraffin carry out granulation as tackiness agent, and cross 80 mesh sieves; Be pressed into diameter for 10mm with powder compressing machine with the pressure of 7MPa again, thickness is the base substrate of 5mm;
5. by base substrate in 925 DEG C of sintering, be incubated 4 hours, obtained microwave-medium niobic acid neodymium pottery;
Finally, by network analyzer and dependence test fixture test gained sample microwave property.
Embodiment 11
1. according to microwave-medium ceramics component Zn 0.5ti 0.5nbO 4, claim ZnO-3.8116g, TiO 2-3.7402g, Nb 2o 5--12.4482g prepares burden, altogether 20g; Mixed powder adds in polyester tank, after adding 160ml deionized water and 150g zirconium ball, and ball milling 6 hours on planetary ball mill, drum's speed of rotation is 1000 revs/min;
2. the raw material after ball milling is placed in loft drier, dries in 120 DEG C and cross 40 mesh sieves, obtaining evengranular powder;
3. powder is calcined 4 hours in 900 DEG C;
4. by calcining after powder put into polyester tank, then take massfraction be 2% LBS-0.4000g with calcining after powder mix, secondary ball milling 8 hours, discharging post-drying, mistake 40 mesh sieves; Then add weight percent be 6% paraffin carry out granulation as tackiness agent, and cross 80 mesh sieves; Be pressed into diameter for 10mm with powder compressing machine with the pressure of 7MPa again, thickness is the base substrate of 5mm;
5. by base substrate in 925 DEG C of sintering, be incubated 4 hours, obtained microwave-medium niobic acid neodymium pottery;
Finally, by network analyzer and dependence test fixture test gained sample microwave property.
Embodiment 12
1. according to microwave-medium ceramics component Zn 0.5ti 0.5nbO 4, claim ZnO-3.8116g, TiO 2-3.7402g, Nb 2o 5--12.4482g prepares burden, altogether 20g; Mixed powder adds in polyester tank, after adding 160ml deionized water and 150g zirconium ball, and ball milling 8 hours on planetary ball mill, drum's speed of rotation is 1000 revs/min;
2. the raw material after ball milling is placed in loft drier, dries in 120 DEG C and cross 40 mesh sieves, obtaining evengranular powder;
3. powder is calcined 4 hours in 900 DEG C;
4. by calcining after powder put into polyester tank, then take massfraction be 2% LBS-0.4000g with calcining after powder mix, secondary ball milling 8 hours, discharging post-drying, mistake 40 mesh sieves; Then add weight percent be 6% paraffin carry out granulation as tackiness agent, and cross 80 mesh sieves; Be pressed into diameter for 10mm with powder compressing machine with the pressure of 7MPa again, thickness is the base substrate of 5mm;
5. by base substrate in 925 DEG C of sintering, be incubated 4 hours, obtained microwave-medium niobic acid neodymium pottery;
Finally, by network analyzer and dependence test fixture test gained sample microwave property.
Every key parameter and the dielectric properties detected result of the specific embodiment of the invention refer to table 1.
Table 1
The detection method of the embodiment of the present invention is as follows:
1. the diameter of sample and thickness use milscale to measure.
2. by Agilent8720ES network analyzer, adopt and start to rob the dielectric constant that parallel plate method measures prepared cylindrical ceramic material, test fixture is put into the measurement that ESPECMC-710F type high/low temperature circulation incubator carries out temperature coefficient of resonance frequency, temperature range is that 25-85 DEG C of test frequency is within the scope of 7-10GHz.
3. adopt enclosed cell method to measure the quality factor of prepared cylindrical ceramic sample, test frequency is within the scope of 6-8GHz.
The present invention is not limited to above-described embodiment, and the change of a lot of details is possible, but therefore this do not run counter to scope and spirit of the present invention.

Claims (6)

1. a low-temperature sintering zinc titanium niobium series microwave dielectric ceramic, it consists of Zn 0.5ti 0.5nbO 4-xLBS, wherein LBS is additional sintering aid, and x is the mass percentage content of additional sintering aid, 1%≤x≤4%;
Described LBS is 50wt%Li 2cO 3– 40.24wt%B 2o 3– 9.76wt%SiO 2.
The preparation method of above-mentioned zinc titanium niobium series microwave dielectric ceramic, has following steps:
(1) by ZnO, TiO 2, Nb 2o 5raw material, by chemical formula Zn 0.5ti 0.5nbO 4prepare burden; In raw material: deionized water: the ratio of abrading-ball=1:16:15 adds in polyester tank, ball milling 6 ~ 8 hours on ball mill;
(2) raw material after step (1) ball milling is placed in loft drier in 80 ~ 130 DEG C of oven dry, crosses 40 mesh sieves after drying, obtain evengranular powder;
(3) powder step (2) mixed was 900 ~ 1000 DEG C of pre-burnings 4 hours;
(4) ceramic powder after step (3) being calcined puts into polyester tank, and additional massfraction is that the LBS of x=1%-4% mixes with the powder after calcining, then adds deionized water and zirconia ball, ball milling 6-8 hour; After oven dry in ceramic powder added weight per-cent be 6 ~ 8% paraffin carry out granulation as tackiness agent, cross 80 mesh sieves, then be shaped to base substrate with powder compressing machine, then by green compact in 850 ~ 950 DEG C of sintering, be incubated 2 ~ 5 hours, obtained zinc titanium niobium series microwave dielectric ceramic;
(5) microwave dielectric property of the zinc titanium niobium series microwave dielectric ceramic that test is obtained.
2. a kind of low-temperature sintering zinc titanium niobium series microwave dielectric ceramic according to claim 1, is characterized in that, ZnO, TiO of described step (1) 2, Nb 2o 5the purity of raw material is greater than 99.9%.
3. a kind of low-temperature sintering zinc titanium niobium series microwave dielectric ceramic according to claim 1, it is characterized in that, described step (3) calcined temperature is 900 DEG C.
4. a kind of low-temperature sintering zinc titanium niobium series microwave dielectric ceramic according to claim 1, is characterized in that, the x=2% of described step (4).
5. a kind of low-temperature sintering zinc titanium niobium series microwave dielectric ceramic according to claim 1, it is characterized in that, the sintering temperature of described step (4) is 925 DEG C, is incubated 4 hours.
6. a kind of low-temperature sintering zinc titanium niobium series microwave dielectric ceramic according to claim 1, it is characterized in that, the operating pressure of the tabletting machine of described step (4) is 7MPa, and base substrate specification is the right cylinder of Φ 10mm × 5mm.
CN201510546874.1A 2015-08-31 2015-08-31 Low-temperature-sintered zinc-titanium-niobium-series microwave dielectric ceramic Pending CN105236966A (en)

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CHING-FANG TSENG等: "Low temperature sintering and microwave dielectric properties of Zn0.5Ti0.5NbO4 ceramics with ZnO additive for LTCC applications", 《JOURNAL OF ALLOYS AND COMPOUNDS》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107721421A (en) * 2017-10-30 2018-02-23 电子科技大学 A kind of Zn Nb Ti systems LTCC materials and preparation method thereof
CN107721421B (en) * 2017-10-30 2020-09-25 电子科技大学 Zn-Nb-Ti LTCC material and preparation method thereof

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Application publication date: 20160113