CN105198422A - Li3Ni2NbO6 microwave dielectric material and preparation method thereof - Google Patents

Li3Ni2NbO6 microwave dielectric material and preparation method thereof Download PDF

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CN105198422A
CN105198422A CN201510643253.5A CN201510643253A CN105198422A CN 105198422 A CN105198422 A CN 105198422A CN 201510643253 A CN201510643253 A CN 201510643253A CN 105198422 A CN105198422 A CN 105198422A
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microwave
burning
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吴海涛
毕金鑫
杨长红
冯战百
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University of Jinan
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Abstract

The invention discloses a Li3Ni2NbO6 microwave dielectric material and a preparation method thereof. The material as a ceramic material is prepared by a traditional solid-phase method and has a main phase Li3Ni2NbO6, which has a dielectric constant ranging from 14.1351 to 15.1342, a quality factor Q.f being 1.711*104 GHz to 1.974*104 GHz, and a temperature coefficient of resonance frequency being -15.6 ppm/DEG C to -13.9 ppm/DEG C. A production process of the microwave dielectric ceramic material is simple, equipment and materials for production are low in cost, and large-scale industrial production is facilitated. Prepared ceramic has various excellent features such as low loss and high dielectric constant, can serve as a material for microwave electronic components such as a dielectric resonator, a dielectric filter, a duplexer, a microwave dielectric antenna an a dielectric stable-frequency oscillator, and plays an important role in the fields of wireless internet, wireless mobile communication, satellite communication and wireless information techniques represented by military and civil radars.

Description

A kind of Li 3ni 2nbO 6microwave dielectric material and preparation method thereof
Technical field
The invention belongs to electronic information material and device arts thereof, be specifically related to a kind of low dielectric constant microwave dielectric ceramic material and preparation method thereof background technology.
Microwave-medium ceramics (MWDC) refers to the one pottery completing microwave signal process in microwave frequency band circuit as dielectric material, is a kind of novel electric function ceramic.Along with the fast development of Internet technology, information content exponentially property increases, and applying frequency is towards the development of higher frequency range, and portable terminal and mobile communication are further towards future developments such as miniaturization, highly integrated and high stabilizabilities.Simultaneously, the devices such as dielectric resonator, wave filter, electrical condenser are at electromagnetic acceptance and transmission, energy and signal coupling and screen in frequency and need further to be improved, this just proposes requirements at the higher level to the components and parts in microwave circuit, and development of miniaturized, high stable, cheapness and highly integrated Novel microwave dielectric ceramic have become the focus place of current research and development.
Microwave-medium ceramics, as the key component manufacturing microwave device, should meet following performance requriements: (1) relative permittivity ε rthe height of trying one's best, this can allow device miniaturization more; (2) temperature coefficient of resonance frequency τ f as much as possible close to 0, so just to can make there is good stability during devices function; (3) quality factor q fvalue wants high, so just can have excellent selecting frequency characteristic.
In the recent period, Li 3mg 2nbO 6and the microwave-medium ceramics of related system is subject to the extensive concern of scientific research personnel because of the microwave dielectric property of its excellence and lower sintering temperature.But the Li both at home and abroad to the displacement of A position 3ni 2nbO 6the research of series microwave dielectric ceramic is also rarely found.
In order to R and D miniaturization, high stable, cheapness and integrated Novel microwave dielectric ceramic, the abundant research to microwave-medium ceramics, the present invention is by conventional solid-state method, and binding substances facies analysis and microwave dielectric property analytical technology, prepare the Li with excellent properties 3ni 2nbO 6series microwave dielectric ceramic.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind ofly novel has microwave dielectric ceramic materials of low-k and excellent microwave dielectric property and preparation method thereof.
Above-mentioned microwave-medium ceramics adopts conventional solid-state method preparation, and sintering temperature is 1100-1200 DEG C.Stupalith dominant is Li mutually 3ni 2nbO 6, its dielectric constant range is 14.135 to 15.428, quality factor q fscope is 1.711 × 10 4gHz to 1.974 × 10 4gHz, temperature coefficient of resonance frequency scope is-15.6ppm/ DEG C to-13.9ppm/ DEG C.
Above-mentioned stupalith is according to Li 3(1+x)ni 2nbO 6(x=0) chemical formula batching, twice batch mixing 24h, calcined temperature 1200 DEG C, when sintering temperature is 1100 DEG C of preparations, has optimal performance.Its medium dielectric constant microwave medium is 14.498, quality factor q fbe 1.974 × 10 4gHz, temperature coefficient of resonance frequency is-14.3ppm/ DEG C.
The preparation method of above-mentioned low dielectric constant microwave dielectric ceramic material is made up of following step:
1, batch mixing: purity is greater than the Li of 99.99% 2cO 3, NiO, Nb 2o 5powder is according to formula Li 3(1+x)ni 2nbO 6the chemical general formula of (-0.01≤x≤0.03) is prepared burden, by powder, and zirconium oxide balls, dehydrated alcohol adds in mixing bottle, batch mixing 18 to 24 hours in mixer; Powder, abrading-ball, the mass ratio of dehydrated alcohol is about 1:10:1; Diameter is 1cm and diameter be 0.5cm mill ball quality ratio is 2:1, and mixer rotating speed is 200r/min.The loft drier that slurry after batch mixing is placed at 70-90 DEG C is dried;
2, dried for step 1 powders mixture being loaded crucible is placed in High Temperature Furnaces Heating Apparatus, and within the scope of 1100-1200 DEG C, pre-burning 4 hours, obtains pre-burning powder;
3, rerolling: by the powder after step 2 pre-burning, zirconium oxide balls, dehydrated alcohol adds mixing bottle again, batch mixing 18 to 24 hours in mixer; Powder, abrading-ball, the mass ratio of dehydrated alcohol is 1:10:1; Diameter is 1cm and diameter be 0.5cm mill ball quality ratio is 2:1, and mixer rotating speed is 200r/min.The loft drier that slurry after batch mixing is placed at 70-90 DEG C is dried;
4, granulation, shaping: the powder of drying in step 3 is added mass percent be 8% paraffin carry out granulation as tackiness agent, after crossing 60-80 mesh standard sieve, then be pressed into green compact with powder compressing machine with the pressure of 200MPa;
5, binder removal
Green compact are placed in High Temperature Furnaces Heating Apparatus, in 500(± 10) DEG C at binder removal four hours, discharge paraffin component;
6, sinter
By the green compact after binder removal in 1100 DEG C-1200 DEG C sintering, be incubated 4 hours.
The invention has the beneficial effects as follows: the present invention adopts the comparatively cheap ceramic alumina powder of price to be raw material.Preparation process stoichiometric ratio controls accurately, and technique is simple, reproducible; Synthesis Li 3ni 2nbO 6media ceramic thing is stablized single mutually, disturbs without dephasign; The microwave ceramic powder particle of synthesis is tiny, even, and synthesis temperature is low, is easy to sintering, can be implemented in 1200 DEG C and sinters, have good microwave dielectric property simultaneously, meet the needs of future microwave components and parts.
Accompanying drawing explanation
Fig. 1 is Li of the present invention 3ni 2nbO 6be ceramic each embodiment related process parameters and microwave dielectric property chart.
Fig. 2 is Li of the present invention 3ni 2nbO 6be the X-ray diffraction analysis figure after ceramic each embodiment sintering.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
embodiment 1.
(1) batch mixing: according to Li 3(1+x)ni 2nbO 6(x=0) stoichiometric ratio of microwave-medium ceramics thing phase, uses precision balance to take the Quilonum Retard (Li that purity is 99.99% 2cO 3) 10.1537g, purity to be 99.99% nickel oxide (NiO) 13.7215g and purity be 99.99% Niobium Pentxoxide (Nb 2o 5) 12.1755g.Powder after weighing is poured in mixing bottle, and adds 40g dehydrated alcohol and 400g zirconium oxide balls.Wherein diameter to be 1cm and diameter be 0.5cm abrading-ball in mass ratio example load for 2:1; The mixing bottle of powder, abrading-ball and dehydrated alcohol to be positioned on mixer continuous batch mixing 24 hours, mixer rotating speed is 200r/min; With coarse screen, the slurry after just batch mixing is separated with abrading-ball, the loft drier that the slurry after being separated is placed at 70-90 DEG C is dried.
(2) pre-burning: the powder after step (1) being dried is placed in retort furnace pre-burning 4 hours at 1200 DEG C, can obtain the Li after pre-burning 3ni 2nbO 6powder.
(3) rerolling: by the powder after step (2) pre-burning and 400g zirconium oxide balls, 40g dehydrated alcohol adds mixing bottle again, batch mixing 24 hours in mixer, mixer rotating speed is 200r/min; With coarse screen, the slurry after just step batch mixing is separated with abrading-ball, the loft drier that the slurry after being separated is placed at 70-90 DEG C is dried.
(4) granulation, shaping: the powder of having dried in step (3) is added mass percent be 8% paraffin carry out granulation as tackiness agent, after mistake 60-80 mesh standard sieve, then be pressed into green compact with powder compressing machine with the pressure of 200MPa.
(5) binder removal: green compact are placed in High Temperature Furnaces Heating Apparatus, in 500(± 10) DEG C at binder removal four hours, discharge paraffin component.
(6) sinter: in employing, warm retort furnace is with heat-up rate 5 DEG C/min, within 4 hours, can realize it in 1100 DEG C of insulations and sinter porcelain into, its specific inductivity is 14.498, quality factor q fbe 1.974 × 10 4gHz, temperature coefficient of resonance frequency is-14.3ppm/ DEG C.
embodiment 2.
(1) batch mixing: according to Li 3(1+x)ni 2nbO 6(x=-0.01) stoichiometric ratio of microwave-medium ceramics thing phase, uses precision balance to take the Quilonum Retard (Li that purity is 99.99% 2cO 3) 10.0522g, purity to be 99.99% nickel oxide (NiO) 13.7215g and purity be 99.99% Niobium Pentxoxide (Nb 2o 5) 12.1755g.Powder after weighing is poured in mixing bottle, and adds 40g dehydrated alcohol and 400g zirconium oxide balls.Wherein diameter to be 1cm and diameter be 0.5cm abrading-ball in mass ratio example load for 2:1; The mixing bottle of powder, abrading-ball and dehydrated alcohol to be positioned on mixer continuous batch mixing 18 hours, mixer rotating speed is 200r/min; With coarse screen, the slurry after just batch mixing is separated with abrading-ball, the loft drier that the slurry after being separated is placed at 70-90 DEG C is dried.
(2) pre-burning: the powder after step (1) being dried is placed in retort furnace pre-burning 4 hours at 1100 DEG C, can obtain the Li after pre-burning 3ni 2nbO 6powder.
(3) rerolling: by the powder after step (2) pre-burning and 400g zirconium oxide balls, 40g dehydrated alcohol adds mixing bottle again, batch mixing 18 hours in mixer, mixer rotating speed is 200r/min; With coarse screen, the slurry after just step batch mixing is separated with abrading-ball, the loft drier that the slurry after being separated is placed at 70-90 DEG C is dried.
(4) granulation, shaping: the powder of having dried in step (3) is added mass percent be 8% paraffin carry out granulation as tackiness agent, after mistake 60-80 mesh standard sieve, then be pressed into green compact with powder compressing machine with the pressure of 200MPa.
(5) binder removal: green compact are placed in High Temperature Furnaces Heating Apparatus, in 500(± 10) DEG C at binder removal four hours, discharge paraffin component.
(6) sinter: in employing, warm retort furnace is with heat-up rate 5 DEG C/min, within 4 hours, can realize it in 1100 DEG C of insulations and sinter porcelain into, its specific inductivity is 14.135, quality factor q fbe 1.934 × 10 4gHz, temperature coefficient of resonance frequency is-13.9ppm/ DEG C.
embodiment 3.
(1) batch mixing: according to Li 3(1+x)ni 2nbO 6(x=0.03) stoichiometric ratio of microwave-medium ceramics thing phase, uses precision balance to take the Quilonum Retard (Li that purity is 99.99% 2cO 3) 10.4583g, purity to be 99.99% nickel oxide (NiO) 13.7215g and purity be 99.99% Niobium Pentxoxide (Nb 2o 5) 12.1755g.Powder after weighing is poured in mixing bottle, and adds 40g dehydrated alcohol and 400g zirconium oxide balls.Wherein diameter to be 1cm and diameter be 0.5cm abrading-ball in mass ratio example load for 2:1; The mixing bottle of powder, abrading-ball and dehydrated alcohol to be positioned on mixer continuous batch mixing 24 hours, mixer rotating speed is 200r/min; With coarse screen, the slurry after just batch mixing is separated with abrading-ball, the loft drier that the slurry after being separated is placed at 70-90 DEG C is dried.
(2) pre-burning: the powder after step (1) being dried is placed in retort furnace pre-burning 4 hours at 1200 DEG C, can obtain the Li after pre-burning 3ni 2nbO 6powder.
(3) rerolling: by the powder after step (2) pre-burning and 400g zirconium oxide balls, 40g dehydrated alcohol adds mixing bottle again, batch mixing 24 hours in mixer, mixer rotating speed is 200r/min; With coarse screen, the slurry after just step batch mixing is separated with abrading-ball, the loft drier that the slurry after being separated is placed at 70-90 DEG C is dried.
(4) granulation, shaping: the powder of having dried in step (3) is added mass percent be 8% paraffin carry out granulation as tackiness agent, after mistake 60-80 mesh standard sieve, then be pressed into green compact with powder compressing machine with the pressure of 200MPa.
(5) binder removal: green compact are placed in High Temperature Furnaces Heating Apparatus, in 500(± 10) DEG C at binder removal four hours, discharge paraffin component.
(6) sinter: in employing, warm retort furnace is with heat-up rate 5 DEG C/min, within 4 hours, can realize it in 1200 DEG C of insulations and sinter porcelain into, its specific inductivity is 15.034, quality factor q fbe 1.711 × 10 4gHz, temperature coefficient of resonance frequency is-15.6ppm/ DEG C.
embodiment 4.
(1) batch mixing: according to Li 3(1+x)ni 2nbO 6(x=0) stoichiometric ratio of microwave-medium ceramics thing phase, uses precision balance to take the Quilonum Retard (Li that purity is 99.99% 2cO 3) 10.1537g, purity to be 99.99% nickel oxide (NiO) 13.7215g and purity be 99.99% Niobium Pentxoxide (Nb 2o 5) 12.1755g.Powder after weighing is poured in mixing bottle, and adds 40g dehydrated alcohol and 400g zirconium oxide balls.Wherein diameter to be 1cm and diameter be 0.5cm abrading-ball in mass ratio example load for 2:1; The mixing bottle of powder, abrading-ball and dehydrated alcohol to be positioned on mixer continuous batch mixing 24 hours, mixer rotating speed is 200r/min; With coarse screen, the slurry after just batch mixing is separated with abrading-ball, the loft drier that the slurry after being separated is placed at 70-90 DEG C is dried.
(2) pre-burning: the powder after step (1) being dried is placed in retort furnace pre-burning 4 hours at 1100 DEG C, can obtain the Li after pre-burning 3ni 2nbO 6powder.
(3) rerolling: by the powder after step (2) pre-burning and 400g zirconium oxide balls, 40g dehydrated alcohol adds mixing bottle again, batch mixing 24 hours in mixer, mixer rotating speed is 200r/min; With coarse screen, the slurry after just step batch mixing is separated with abrading-ball, the loft drier that the slurry after being separated is placed at 70-90 DEG C is dried.
(4) granulation, shaping: the powder of having dried in step (3) is added mass percent be 8% paraffin carry out granulation as tackiness agent, after mistake 60-80 mesh standard sieve, then be pressed into green compact with powder compressing machine with the pressure of 200MPa.
(5) binder removal: green compact are placed in High Temperature Furnaces Heating Apparatus, in 500(± 10) DEG C at binder removal four hours, discharge paraffin component.
(6) sinter: in employing, warm retort furnace is with heat-up rate 5 DEG C/min, within 4 hours, can realize it in 1200 DEG C of insulations and sinter porcelain into, its specific inductivity is 14.215, quality factor q fbe 1.724 × 10 4gHz, temperature coefficient of resonance frequency is-15.2ppm/ DEG C.
embodiment 5.
(1) batch mixing: according to Li 3(1+x)ni 2nbO 6(x=0) stoichiometric ratio of microwave-medium ceramics thing phase, uses precision balance to take the Quilonum Retard (Li that purity is 99.99% 2cO 3) 10.1537g, purity to be 99.99% nickel oxide (NiO) 13.7215g and purity be 99.99% Niobium Pentxoxide (Nb 2o 5) 12.1755g.Powder after weighing is poured in mixing bottle, and adds 40g dehydrated alcohol and 400g zirconium oxide balls.Wherein diameter to be 1cm and diameter be 0.5cm abrading-ball in mass ratio example load for 2:1; The mixing bottle of powder, abrading-ball and dehydrated alcohol to be positioned on mixer continuous batch mixing 18 hours, mixer rotating speed is 200r/min; With coarse screen, the slurry after just batch mixing is separated with abrading-ball, the loft drier that the slurry after being separated is placed at 70-90 DEG C is dried.
(2) pre-burning: the powder after step (1) being dried is placed in retort furnace pre-burning 4 hours at 1200 DEG C, can obtain the Li after pre-burning 3ni 2nbO 6powder.
(3) rerolling: by the powder after step (2) pre-burning and 400g zirconium oxide balls, 40g dehydrated alcohol adds mixing bottle again, batch mixing 18 hours in mixer, mixer rotating speed is 200r/min; With coarse screen, the slurry after just step batch mixing is separated with abrading-ball, the loft drier that the slurry after being separated is placed at 70-90 DEG C is dried.
(4) granulation, shaping: the powder of having dried in step (3) is added mass percent be 8% paraffin carry out granulation as tackiness agent, after mistake 60-80 mesh standard sieve, then be pressed into green compact with powder compressing machine with the pressure of 200MPa.
(5) binder removal: green compact are placed in High Temperature Furnaces Heating Apparatus, in 500(± 10) DEG C at binder removal four hours, discharge paraffin component.
(6) sinter: in employing, warm retort furnace is with heat-up rate 5 DEG C/min, within 4 hours, can realize it in 1100 DEG C of insulations and sinter porcelain into, its specific inductivity is 14.374, quality factor q fbe 1.862 × 10 4gHz, temperature coefficient of resonance frequency is-14.3ppm/ DEG C.

Claims (6)

1. a Li 3ni 2nbO 6microwave dielectric ceramic materials, is characterized in that: stupalith dominant is Li mutually 3ni 2nbO 6, its dielectric constant range is 14.135 to 15.428, quality factor q fscope is 1.711 × 10 4gHz to 1.974 × 10 4gHz, temperature coefficient of resonance frequency scope is-15.6ppm/ DEG C to-13.9ppm/ DEG C.
2. each method of the system of low dielectric constant microwave dielectric ceramic material according to claim 1, is characterized in that it is made up of following step:
(1) batch mixing: purity is greater than the Li of 99.99% 2cO 3, NiO, Nb 2o 5powder is according to formula Li 3(1+x)ni 2nbO 6the chemical general formula of (-0.01≤x≤0.03) is prepared burden, by powder, and zirconium oxide balls, dehydrated alcohol adds in mixing bottle, batch mixing 18-24 hour in mixer; The loft drier that slurry after batch mixing is placed at 70-90 DEG C is dried;
(2) dried for step (1) powders mixture being loaded crucible is placed in High Temperature Furnaces Heating Apparatus, 1100-1200 DEG C of pre-burning 4 hours, obtains pre-burning powder;
(3) rerolling
By the powder after step (2) pre-burning, zirconium oxide balls, dehydrated alcohol adds mixing bottle again, batch mixing 18-24 hour in mixer; The loft drier that slurry after batch mixing is placed at 70-90 DEG C is dried;
(4) granulation, shaping
The powder of having dried in (3) is added mass percent be 8% paraffin carry out granulation as tackiness agent, after mistake 60-80 mesh standard sieve, then be pressed into green compact with powder compressing machine with the pressure of 200MPa;
(5) binder removal
Green compact are placed in High Temperature Furnaces Heating Apparatus, in 500(± 10) DEG C at binder removal four hours, discharge paraffin component;
(6) sinter
By the green compact after binder removal in 1100 DEG C-1200 DEG C sintering, be incubated 4 hours.
3. the preparation method of low-loss high-frequency medium ceramic according to claim 2, is characterized in that, described step (1) its chemical formula is Li 3(1+x)ni 2nbO 6(-0.01≤x≤0.03).
4. the preparation method of low-loss high-frequency medium ceramic according to claim 2, is characterized in that, described step (1), (3) ceramic powder, abrading-ball, and the mass ratio of dehydrated alcohol is 1:10:1; Diameter is 1cm and diameter be 0.5cm mill ball quality ratio is 2:1, and mixer rotating speed is 200r/min.
5. the preparation method of low-loss high-frequency medium ceramic according to claim 2, is characterized in that, described step (2) ceramic powder was in 1100-1200 DEG C of pre-burning 4 hours.
6. the preparation method of low-loss high-frequency medium ceramic according to claim 2, is characterized in that, the cylindrical green body that step (5) obtains by described step (6) sinters 4 hours at 1100 DEG C-1200 DEG C, and heating gradient is 5 DEG C/min.
CN201510643253.5A 2015-10-08 2015-10-08 Li3Ni2NbO6 microwave dielectric material and preparation method thereof Pending CN105198422A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105688923A (en) * 2016-03-04 2016-06-22 苏州格瑞惠农膜材料科技有限公司 Preparing method and application of novel visible-light responding photocatalyst Li3Ni2NbO6
CN111943671A (en) * 2020-08-18 2020-11-17 西安邮电大学 Wide-sintering temperature zone low-loss microwave dielectric ceramic and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103496973A (en) * 2013-10-07 2014-01-08 桂林理工大学 Low temperature sintered microwave dielectric ceramic BiTiNbO6 and preparation method thereof
CN104628384A (en) * 2015-02-28 2015-05-20 桂林理工大学 Low-loss temperature-stable type middle-dielectric-constant microwave dielectric ceramic LiBi2NbO6

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103496973A (en) * 2013-10-07 2014-01-08 桂林理工大学 Low temperature sintered microwave dielectric ceramic BiTiNbO6 and preparation method thereof
CN104628384A (en) * 2015-02-28 2015-05-20 桂林理工大学 Low-loss temperature-stable type middle-dielectric-constant microwave dielectric ceramic LiBi2NbO6

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
GLENN C等: "Continuous Order-disorder Transition in Li3Ni2NbO6 and Cr-doper Li3Ni2NbO6 Rock Salt Structures", 《JOURNAL OF SOLID STATE CHEMISTRY》 *
万尤宝等: "Li离子浓度对铌酸钾锂晶体[NbO6]7八面体畸变的影响", 《人工晶体学报》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105688923A (en) * 2016-03-04 2016-06-22 苏州格瑞惠农膜材料科技有限公司 Preparing method and application of novel visible-light responding photocatalyst Li3Ni2NbO6
CN111943671A (en) * 2020-08-18 2020-11-17 西安邮电大学 Wide-sintering temperature zone low-loss microwave dielectric ceramic and preparation method thereof

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Application publication date: 20151230