CN100456393C - High-dielectric constant microwave dielectric ceramic and producing method thereof - Google Patents

High-dielectric constant microwave dielectric ceramic and producing method thereof Download PDF

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CN100456393C
CN100456393C CN 200610129844 CN200610129844A CN100456393C CN 100456393 C CN100456393 C CN 100456393C CN 200610129844 CN200610129844 CN 200610129844 CN 200610129844 A CN200610129844 A CN 200610129844A CN 100456393 C CN100456393 C CN 100456393C
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李玲霞
王洪茹
晶 赵
锐 郭
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天津大学
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Abstract

本发明公开了一种微波介质陶瓷及其制备方法,原料组分及摩尔百分比含量为,Ag<sub>2</sub>O40-60%、Nb<sub>2</sub>O<sub>5</sub>10-40%、Ta<sub>2</sub>O<sub>5</sub>10-40%,在此基础上,外加重量百分比含量为1.0-5.0%的Gd<sub>2</sub>O<sub>3</sub>或1.0-5.0%的Dy<sub>2</sub>O<sub>3</sub>。 The present invention discloses a microwave dielectric ceramic and preparation method, and feed components as molar percentage, Ag <sub> 2 </ sub> O40-60%, Nb <sub> 2 </ sub> O <sub> 5 </ sub> 10-40%, Ta <sub> 2 </ sub> O <sub> 5 </ sub> 10-40%, on this basis, plus an amount of 1.0-5.0% by weight of Gd < sub> 2 </ sub> O <sub> 3 </ sub> or 1.0-5.0% of Dy <sub> 2 </ sub> O <sub> 3 </ sub>. 采用预合成前驱体的方法,经一次球磨、预烧、二次配料、二次球磨,制成Ag(Nb<sub>1-x</sub>Ta<sub>x</sub>)O<sub>3</sub>陶瓷原粉,最后在1130-1150℃烧结。 Precursor using the method of pre-synthesized by a ball mill, calcined, the second ingredient, the second ball, made of Ag (Nb <sub> 1-x </ sub> Ta <sub> x </ sub>) O < sub> 3 </ sub> ceramic raw powder, and finally sintered at 1130-1150 ℃. 本发明所提供的微波介质陶瓷具有烧结温度低,介电常数高(ε>400)、介电损耗低(tgδ<10×10<sup>-4</sup>)的优良性能,并且制备工艺简单、制备过程无污染。 Microwave dielectric ceramics of the present invention provides a low sintering temperature, high dielectric constant (ε> 400), low dielectric loss (tgδ <10 × 10 <sup> -4 </ sup>) excellent properties, preparation and simple, non-polluting preparation process. 本发明用于制备高频介质器件。 The present invention for the preparation of high-frequency dielectric device.

Description

商介电常数傲波介质陶宠及其制备方法技术领域 List permittivity dielectric ceramic wave proud and pet TECHNICAL FIELD

本发明是关于以成分为特征的陶瓷组合物及其制备方法,更确切地说,是关于一种以Ag (Nb,iTaJ &为基料的陶瓷组合物及其制备方法。 The present invention relates to a ceramic composition and preparation method of component characteristic, more particularly, relates to a kind of Ag (Nb, iTaJ & ceramic composition and preparation method of the base material.

背景技术 Background technique

微波介质陶瓷是指在用于微波波段(UHF、 SHF频段)电路中作为介质材料并完成一种或者多种功能的陶瓷。 It refers to a microwave dielectric ceramics for microwave bands ceramic (UHF, SHF band) circuit as a dielectric material and complete one or more functions. 微波介质谐振器广泛地应用于现代通讯装置中,因为与传统的金属谐振器相比,它具有体积小、重量轻、成本低等优点。 Microwave dielectric resonator widely used in modern communication devices, as compared with the conventional metal resonator having a small size, light weight, and low cost. 随着科学技术的发展,人们对通讯设备提出了小型、便携的要求。 With the development of science and technology, people made communication equipment requirements for small, portable. 电子设备小型化的关键是有效增加介质材料的介电常数。 Miniaturized electronic device is a key to increase the effective dielectric constant of the dielectric material. 目前,从实际应用的角度出发,频率在0. 1~1 GHz (如移动通讯)内的陶瓷材料的研究有了迅速发展, 髙介电常数低介电损耗的新型微波材料的研究成为研究的热点。 At present, from the practical point of view, the frequency Ceramic materials 0. 1 ~ 1 GHz (such as mobile communications) has been developed rapidly in the study Gao dielectric constant of the low dielectric loss materials become a new microwave research hot spots.

近年来,ANT材料系统引起了人们的普遍关注,这是因为与以往微波介质陶瓷体系相比它具有异常商的介电常数(e >400),并且通过调节系统中Nb和Ta的比例可以将系统的容量温度系数控制在0X1(TXT附近,但是该系统的损耗较大,极大地影响了它在实际中的应用,所以对于ANT系统的研究主要集中在如何采取有效措施降低系统的介电损耗。F. Zimmermann等人于2004年在Journal of European Ceramic Society第六期上发表的《可调微波介质Ag(Ta,Nb)O,的研究》中提到其制备的Ag(Ta,Nb)03系统的介电常数为310,温度系数可调。 In recent years, due to the material systems ANT widespread concern, since as compared with conventional systems having a microwave dielectric ceramic dielectric abnormal commercially (e> 400), and by adjusting the ratio of the system may be Nb and Ta temperature coefficient of capacitance control system in 0X1 (near TXT, but the loss of the system is large, greatly affecting its application in practice, so for research ANT system focused on how to take effective measures to reduce dielectric loss system reference to "microwave dielectric Study adjustable Ag (Ta, Nb) O, the" .F. Zimmermann et al sixth of the European Ceramic Society, published in 2004 in Journal of its preparation Ag (Ta, Nb) 03 It is the dielectric constant of the system 310, adjustable temperature coefficient.

发明内容 SUMMARY

本发明的目的是提供一种中温烧结、1MHz渊试频率下介电常数大于400、介质损耗低于10X l(T的陶瓷电容器介质材料及其制备方法。 Object of the present invention is to provide a medium-temperature sintering, the sample frequency is 1MHz deep dielectric constant greater than 400, a dielectric loss lower than 10X l (T ceramic capacitor dielectric material and its preparation method.

本发明通过以下技术方案予以实现。 The present invention is realized by the following technical solutions.

本发明离介电常数微波介质陶瓷,其原料组分及摩尔百分比含量为,Ag20 40-60%、 Nb205 The present invention from the dielectric constant of the dielectric ceramics, and the mole percentage of the raw material component content, Ag20 40-60%, Nb205

10-40% 、 TaA 10-40%,在此基础上,外加重量百分比含量为1. 0-5. 0%的GdA或1. 0-5. 0% 的DyA。 10-40%, TaA 10-40%, based on this, plus the percentage by weight 1. 0-5. 0% of GdA or 1. 0-5. 0% of Dya.

本发明的制备方法,具有如下步骤: The method of the present invention is prepared, having the following steps:

(1) ,尔百分比含量NbA 10-40% 、 TaA 10-40%配料,按上述原料:去离子水:锆球重量比为l: 1: 1.5的比例球磨3-6小时; (1), the percentage content of Seoul NbA 10-40%, TaA 10-40% of ingredients according to the above ingredients: deionized water: L weight ratio of zirconia balls: 1: 1.5 ratio milled for 3-6 hours;

(2) 将步骤(l)球磨后的原料于110"C〜12(TC烘干,再于1100"〜1300X:煅烧,煅烧时间为3-5小时,合成前躯体; After ball milling the raw material (2) in step (l) 110 "C~12 (TC drying, then at 1100" ~1300X in: calcination, the calcination time is 3-5 hours to synthesize a precursor;

(3) 按摩尔百分比含量Ag2040-60%、前躯体40-60%二次配料,按二次配料的原料:去离子水:锆球重量比为l: 1: 1. 5的比例球磨3-6小时;粉碎、混合,再次于11(TC〜12(rC烘干: (3) percent content by mole Ag2040-60%, 40-60% secondary precursor ingredients, the raw material of the secondary ingredients: deionized water: zirconia balls in a weight ratio of l: 3 ratio of milling 1.5: 1 6 hours; pulverized, mixed, again in 11 (TC~12 (rC drying:

(4) 将步骤(3)烘干后的原料于930-970TC煅烧,煅烧时间为10-12小时,合成熔块,在此基础上,加入重量百分比含量为1. 0-5. 0%的GdA或者1. 0-5. 0%的DyA;再按加入重量百分比含量为1. 0-5. 0%的Gd20,或者1. 0-5. 0%的Dy20,的原料:去离子水:锆球重量比为1: 1: l-. 5 的比例球磨6-12小时,粉碎、混合,再次1101C〜1201C烘干,制成陶瓷原粉: (4) The step (3) the raw material is baked at 930-970TC calcined, the calcination time is 10-12 hours, synthesis frits, on this basis, the percentage by weight was added 1. 0-5. 0% of ... GdA or 1. 0-50% by Dya; material is then added content by weight 1. 0-50% by Gd20, or 1. 0-50% by Dy20, of: deionized water: zirconia ball weight ratio of 1: 1: 5 ratio l- 6-12 hours ball milling, grinding, mixing, drying 1101C~1201C again, a ceramic raw powder:

(5) 在陶瓷原粉中加入重量比为5-6%的石蜡作为粘合剂造粒,经120-380Mpa单轴模压成生坯: (5) was added to the ceramic raw powder 5-6% by weight of granulated paraffin wax as a binder, molded into a green body by uniaxially 120-380Mpa:

(6) 将生坯于1110-1150匸烧结,保温2-6小时,制成高介电常数微波介质陶瓷。 (6) sintering the green body at 1110-1150 Xi, incubated 2-6 hours to obtain a high dielectric constant microwave dielectric ceramics. 步骤(2)的煅烧时间为3-5小时。 Calcining time of step (2) for 3-5 hours.

歩骤(4)合成熔块的煅烧时间为10-12小时。 Ho step (4) Synthesis of clinker calcination time is 10-12 hours.

步骤(6)的烧结过程是经2-3h升温至550X:,再经2-3h升温至1110-1150"C。 本发明通过添加稀土氧化物可有效地减小瓷料的ANT系陶瓷材料的介电损耗,同时可显著提高瓷料的介电常数。本发明的ANT系陶瓷材料烧结温度低(1110—11501C),并具有高介电常数(eMOO)、低损耗(tgS 〈IOXI(T)的优良性能,具有广阔的应用发展前景。此外, 本发明的制备工艺简单、制备过程无污染。 Step (6) by the sintering process is allowed to warm to 550X :, 2-3h 2-3h and then the temperature was raised to 1110-1150 "C. The present invention can be effectively reduced ANT-based ceramic material of the ceramic material by the addition of rare earth oxide dielectric loss, dielectric constant significantly improved while the porcelain. ANT-based ceramic material of the present invention, a low sintering temperature (1110-11501C), and having a high dielectric constant (eMOO), low loss (tgS <IOXI (T) excellent performance, broad application prospect. Further, the preparation process of the present invention is simple, non-polluting manufacturing process.

具体实施方式 detailed description

下面结合实施例对本发明作进一步描述,但不局限于实施例。 Below in connection with embodiments of the present invention will be further described in, but not limited to the embodiments.

本发明以分析纯的NbA、 TaA为原料,采用预合成前驱体(Nb,Ta,-,)03 ( x=0.2_0.8), The present invention in analytically pure NBA, TAA as raw materials, pre-synthesized precursor (Nb, Ta, -,) 03 (x = 0.2_0.8),

再在前驱体中加入一定比例的分析纯Ag20,混合物在氧化气氛下反应生成ANT,再按一定比例添加GdA或者Dy203。 Adding a certain proportion of analytically pure precursor Ag20, ANT reaction mixture in an oxidizing atmosphere, and then add a certain percentage or GdA Dy203.

本发明具体实施例如下,但不局限于实施例。 DETAILED embodiment of the present invention, for example, but not limited to the embodiments.

实施例l: Example l:

称取12g NbA, 12g TaA混合球磨3h,于干燥箱内U0"烘干,再于IIOO"C经3h烧制成熔块。 Weigh 12g NbA, 12g TaA ball mill mixing 3h, a drybox U0 "drying, then at IIOO" C over 3h fired into frit. 称取16gAg20加入上述熔块中,球磨5h后于9301C煅烧制得粉体,在此基础上,加入重量百分比含量为1.(Wi的GdA,球磨6h后烘干。加入5%石蜡造粒,压制成直径为10咖、 厚度为lmm的圆形生胚,于高温电阻箱中经3h升至550"C进行排蜡,再经2h升温至1110'C, 保温2h。所得样品上下表面涂覆银浆,经820X:烧渗制备电极;焊接引线后制得高介微波陶 Weigh 16gAg20 added to the frit, a ball mill after 5h 9301C calcined powders prepared, on this basis, the weight percentage of added amount of 1. (Wi is GdA, dried milled 6h. 5% paraffin wax granulation, coffee pressed into a diameter of 10, a thickness of the green circle is lmm, the resistance to high temperature was raised to 3h tank 550 "C for row waxes, over 2h then warmed to 1110'C, incubated 2h. the resulting coated sample and lower surfaces Silver, by 820X: preparation of electrode burn retentate; make high microwave dielectric ceramic after welding wire

实施例2: Example 2:

称取12g NbA, 12g TaA混合球磨5h,于干燥箱内IIO"C烘干,再于11501C经3h烧制成熔块。称取16gAg20加入上述熔块中,球磨3h后于95(TC煅烧制得粉体,在此基础上,加入重量百分比含i为4.0%的Gd203,球磨8h后烘干。加入5妬蜡造粒,压制成直径为IO咖、 厚度为l鹏的圆形生胚,于髙温电阻箱中经3h升至55(TC进行摔蜡,再经2h升温至1140'C, 保温6h。所得样品上下表面涂覆银浆,经840'C烧渗制备电极;焊接引线后制得高介微波陶瓷电容器。 Weigh 12g NbA, 12g TaA mixing ball 5h, in the drybox IIO "C dry, and then fired at 11501C over 3h to a frit. Weighed 16gAg20 added to the frit, a ball mill after 3h 95 (TC calcining powders with, on this basis, the weight percentage of added i containing 4.0% of Gd2O3, dried milled 8h added 5 jealous wax granulation, pressing a diameter of IO coffee, a thickness of the green circle l Peng, Gao temperature resistance in the tank was raised over 3h 55 (TC wax for wrestling, over 2h then warmed to 1140'C, 6h incubation the sample and lower surfaces coated with a silver paste obtained by burning 840'C prepared retentate electrode; after solder tails microwave obtain high dielectric ceramic capacitor.

实施例3: Example 3:

称取10g NbA, 16g TaA混合球磨4h,于干燥箱内120卩烘干,再于1200TC经4h烧制成熔块。 Weigh 10g NbA, 16g TaA 4h ball mill mixing, drying in a drying oven at 120 Jie, after 4h and then at 1200TC fired into frit. 称取14gAg20加入上述熔块中,球磨4h后于96(TC煅烧制得粉体,在此基础上,加入重量百分比含l:为5. 0%的GdA;球磨10h后烘干。加入5%石蜡造粒,压制成直径为IO咖、 厚度为l咖的圆形生胚,于高温电阻箱中经3h升至550"C进行排蜡,再经2h升温至1140"C, 保温2h。所得样品上下表面涂覆银浆,经840'C烧渗制备电极;焊接引线后制得高介微波陶 Weigh 14gAg20 added to the frit, a ball mill after 4h 96 (TC obtained calcined powders, on this basis, the weight percentage of added containing l:. To 5.0% of GdA; 10h milled dried 5% Paraffin granulated, pressed into IO coffee diameter, a thickness of the green circle l coffee, dried 3h at high temperature was raised resistance box 550 "C for row waxes, over 2h and then heated to 1140" C, incubated 2h. the resulting samples upper and lower surfaces coated with a silver paste, an electrode was prepared by burning 840'C retentate; make high microwave dielectric ceramic after welding wire

恣由 Pleases the

实旌拥4: Real Jing Yong 4:

称取10gNbA, 16g Ta20s混合球磨6h,于干燥箱内12(TC烘干,再于13001C经5h烧制 Weigh 10gNbA, 16g Ta20s mixing ball 6h, at 12 (TC an oven dried, then fired at 13001C through 5h

成熔块。 Into a frit. 称取14gAg20加入上述熔块中,球磨6h后于930r煅烧制得粉体,在此基础上,加入重量百分比含量为1.0%Dy203;球磨6h后烘干。 Weigh 14gAg20 added to the frit, a ball mill 930r 6h after calcining powders obtained in this basis, the percentage by weight was added 1.0% Dy203; 6h milled and dried. 加入6%石蜡造粒,压制成直径为10咖、厚度为lmm的圆形生胚,于商温电阻箱中经3h升至550匸进行排蜡,再经2h升温至115(TC, 保温4h。所得样品上、下表面涂覆银浆,经820X:烧渗制备电极;焊接引线后制得高介微波陶瓷电容器。 6% paraffin wax was added granulated, pressed coffee having a diameter of 10, a thickness of the green circular lmm, dried 3h was raised to 550 wax commercially Xi for discharge tank temperature resistance, over 2h then warmed to 115 (TC, heat 4h . make high microwave dielectric ceramic capacitor after welding wire; Oozing electrode burn: the obtained sample, the lower surface of the silver paste is coated, dried 820X.

实施例5: Example 5:

称取12gNbA, 12g TaA混合球磨4h,于干燥箱内120"C烘千,再于1150"C经6h烧制成熔块。 Weigh 12gNbA, 12g TaA mixing ball 4h, a drybox 120 "C bake one thousand, then at 1150" C frit was fired into 6h. 称取16gAg,0加入上述熔块中,球磨5h后于9401C煅烧制得粉体,在此基础上,加入重i百分比含l:为3. 5%DyA;球磨12h后烘干。 Weigh 16gAg, 0 frit is added, after the milling 5h 9401C calcined powder obtained above, on this basis, added to the weight percentage comprising i l: of 3. 5% DyA; after 12h dry milling. 加入5%石蜡造粒,压制成直径为lOmm、 厚度为l咖的圆形生胚,于高温电阻箱中经3h升至55(TC进行排錯,再经2h升温至1150'C, 保温2h。所得样品上下表面涂覆银浆,经840"C烧渗制备电极:焊接引线后制得高介微波陶 5% paraffin granulated, pressed into lOmm diameter, the thickness l of the green coffee in the circular, raised to 55 over 3h in a high temperature resistance box (TC troubleshoot, over 2h then warmed to 1150'C, incubated 2h the resulting silver coated sample and lower surfaces, by 840 "C Oozing electrode burn: after welding wire make high microwave dielectric ceramic

实施钾6: Potassium Embodiment 6:

称取12g NbA, 12g TaA混合球磨5h,于干燥箱内12(TC烘千,再于1200"C经3h烧制成熔块。称取16gAg20加入上述熔块中,球磨3h后于960"C煅烧制得粉体,在此基础上,加入重量百分比含量为5. 0%DyA;球磨8h后烘干。加入6%石蜡造粒,压制成直径为10mra、厚度为l咖的画形生胚,于高温电阻箱中经3h升至55(TC进行排錯,再经2h升温至113(TC, 保温6h。所得样品上下表面涂覆银浆,经8201C烧渗制备电极;焊接引线后制得高介微波陶瓷电容器。 Weigh 12g NbA, 12g TaA mixing ball 5h, in the drying oven 12 (TC bake one thousand, then at 1200 "C over 3h to be fired frit. Weighed 16gAg20 added to the frit, a ball mill after 3h 960" C calcining the powder obtained in this basis, the percentage by weight was added 5. 0% DyA;. 8h dried milled granulation was added 6% paraffin wax, compressed into a diameter of 10mra, the thickness l of the green coffee in the form Videos , 3h was raised by 55 (TC troubleshoot, over 2h then warmed to 113 (TC, incubated for 6h in a high temperature resistance of the resulting sample tank upper and lower surfaces coated silver paste, prepared by infiltration electrode burn 8201C; after solder tails prepared high microwave dielectric ceramic capacitors.

本发明渊试方法如下: Yuan test method of the invention as follows:

一、圆片形介质的介电常数的检測 First, the disc-shaped medium permittivity detection

利用HP4278A电容仪澜Jt样品的电容量C,根据公式(l)计算样品的介电常数。 Lan using a capacitance meter and HP4278A capacitance Jt sample C, the dielectric constant of the sample is calculated according to the formula (l).

其中:c为试样的电容l:,单位是pF。 Wherein: c is the capacitance of the sample unit is l :, pF. D为试样的直径,单位为cm。 D is the diameter of the sample, in units of cm. d为试样的厚度,单位为cm。 d is the thickness of the sample, in units of cm.

二、 样品绝缘电阻率的測量 Second, the insulation resistance measurement sample

利用ZC36型超高电阻仪渊量杨品德绝缘电阻,利用下式计算材料的体电阻率P ZC36 using ultrahigh resistance meter deep amount Yang character insulation resistance using the calculated volume resistivity material P

<formula>formula see original document page 7</formula>(2) <Formula> formula see original document page 7 </ formula> (2)

其中:Ri为样品的绝缘电阻,单位为Q。 Wherein: Ri is the insulation resistance of the sample, in units of Q.

D为试样的直径,单位为cm。 D is the diameter of the sample, in units of cm. d为试样的厚度,单位为cm。 d is the thickness of the sample, in units of cm.

三、样品介电损耗的測i Third, the dielectric loss measured sample i

利用HP4278A电容仪渊量样品的介电损耗tg S (l朋z)。 Using HP4278A capacitance meter and the amount of sample deep dielectric loss tg S (l Peng z). 本发明实施例的渊试结果与现有技术对比数据如下表1, Yuan test results and comparative data prior art embodiment of the present invention shown in Table 1,

表l Table l

<table>table see original document page 7</column></row> <table>由表1的测试结果可以看出,本发明的多种性能指标全部优于现有技术,并且制备工艺简单、制备过程无污染。 <Table> table see original document page 7 </ column> </ row> <table> can be seen from the test results in Table 1, several properties of the present invention is superior to all prior art, and the preparation technology is simple, prepared no pollution.

本发明己通过较佳实施例进行了描述,相关技术人员明显能在不脱离本发明的内容、精神和范围的情况下对本文所述的技术方案适当变更与组合,来实现本发明。 Been performed by the present invention has been described with preferred embodiments, the relevant art can obviously be changed and combined in the technical solution described herein without departing from the content, the spirit and scope of the present invention, to implement the present invention. 所有相类似的替换和改动对本领域技术人员来说是显而易见的,他们都被视为包括在本发明精神、范围和内容之中。 All similar substitutions and modifications to the skilled person are obvious, they are considered to be included in the spirit of the invention, the scope and content.

Claims (3)

  1. 1.一种高介电常数微波介质陶瓷,其特征在于,其原料组分及摩尔百分比含量为,Ag2O40-60%、Nb2O5 10-40%、Ta2O5 10-40%,在此基础上,外加重量百分比含量为1.0-5.0%的Gd2O3或者1.0-5.0%的Dy2O3。 1. A high-permittivity dielectric ceramics, characterized in that the starting components and their molar percentage content, Ag2O40-60%, Nb2O5 10-40%, Ta2O5 10-40%, based on this, plus the weight the percentage content of 1.0-5.0%, or 1.0-5.0% of Gd2O3 Dy2O3.
  2. 2. 权利要求1的高介电常数微波介质陶瓷的制备方法,其特征在于,具有如下步骤:(1) 按摩尔百分比含量NbA 10-40% 、 TaA 10-40%配料,按上述原料:去离子水:锆球重量比为l: 1: 1.5的比例球磨3-6小时;(2) 将歩骤(l)球磨后的原料于110r〜120"烘干,再于1100"C〜1300X:煅烧,煅烧时间为3-5小时,合成前躯体;(3) 按摩尔百分比含量Ag2040-60%、前躯体40-60%二次配料,按二次配料的原料:去离子水:锆球重量比为l: 1: 1. 5的比例球磨3-6小时;粉碎、混合,再次于11(TC〜12(TC烘干;(4) 将步骤(3)烘干后的原料于930-970TC煅烧,煅烧时间为10-12小时,合成熔块,在此基础上,加入重量百分比含量为1.0-5. (m的Gd;A或者1.0-5. 09t的Dy203:再按加入重量百分比含量为1.0-5.0%的GdA或者1.0-5.0%的DyA的原料:去离子水:锆球重量比为1: 1: 1.5 的比例球磨6-12小时,粉碎、混合,再次1101C〜12(rC烘干,制成 The method of preparing a microwave dielectric ceramic of high dielectric constant according to claim 1, further comprising the steps of: (1) percent content by mole NbA 10-40%, TaA 10-40% of ingredients according to the above material: to deionized water: zirconia balls in a weight ratio of l: 1: 1.5 ratio milled for 3-6 hours; (2) the step ho (l) in the raw material after milling 110r~120 "drying, then at 1100" C~1300X: calcined, the calcination time is 3-5 hours to synthesize a precursor; (3) percent content by mole Ag2040-60%, 40-60% secondary precursor ingredients, the raw material of the secondary ingredients: deionized water: zirconia balls weight ratio of l: 1: 1.5 ratio of 3-6 hours in a ball mill; pulverized, mixed, again in 11 (TC~12 (TC drying; (4) the step (3) the raw material is baked at 930-970TC calcined, the calcination time is 10-12 hours, synthesis frits, on this basis, the weight percentage of added amount of 1.0-5 (m of Gd; a or 1.0-5 09t of Dy203:.. then added content wt 1.0-5.0%, or 1.0-5.0% of the GdA DyA feedstock: deionized water: zirconia ball weight ratio of 1: 1: 1.5 ratio of 6-12 hours ball milling, grinding, mixing, 1101C~12 (rC drying again ,production 陶瓷原粉;(5) 在陶瓷原粉中加入重量比为5-6%的石蜡作为粘合剂造粒,经120-380Mpa单轴模压成生坯;(6) 将生坯于1110-1150r烧结,保温2-6小时,制成高介电常数微波介质陶瓷。 Ceramic raw powder; (5) adding 5-6% by weight of paraffin as a binder in the ceramic raw powder, granulated, uniaxially molded into a green body by 120-380Mpa; (6) in the green body 1110-1150r sintering, incubated 2-6 hours to obtain a high dielectric constant microwave dielectric ceramics.
  3. 3.根据权利要求2所述高介电常数微波介质陶瓷的制备方法,其特征在于,步骤(6)的烧结过程是经2-3h升温至5501C,再经2-3h升温至1110-1150*0。 3. The production method 2 of the high dielectric constant microwave dielectric ceramic according to claim, wherein the step (6) of the sintering process is allowed to warm to 5501C over 2-3h, 2-3h and then the temperature was raised to 1110-1150 * 0.
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