CN106699164A - 微波陶瓷SrO‑ZnO(MgO)‑TiO2及制法 - Google Patents
微波陶瓷SrO‑ZnO(MgO)‑TiO2及制法 Download PDFInfo
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 239000000919 ceramic Substances 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 65
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- 239000000126 substance Substances 0.000 claims abstract description 9
- 238000000498 ball milling Methods 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 34
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 32
- 239000000843 powder Substances 0.000 claims description 30
- 238000001035 drying Methods 0.000 claims description 27
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 26
- 239000000758 substrate Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000008367 deionised water Substances 0.000 claims description 14
- 229910021641 deionized water Inorganic materials 0.000 claims description 14
- 239000002131 composite material Substances 0.000 claims description 11
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 10
- 239000012298 atmosphere Substances 0.000 claims description 9
- 230000003179 granulation Effects 0.000 claims description 8
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000005485 electric heating Methods 0.000 description 5
- 239000011777 magnesium Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
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- 229910011255 B2O3 Inorganic materials 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
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- 239000007772 electrode material Substances 0.000 description 2
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- 229910052573 porcelain Inorganic materials 0.000 description 2
- 229910000018 strontium carbonate Inorganic materials 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N CuO Inorganic materials [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
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- 229910052681 coesite Inorganic materials 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
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- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
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- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- LEDMRZGFZIAGGB-UHFFFAOYSA-L strontium carbonate Chemical compound [Sr+2].[O-]C([O-])=O LEDMRZGFZIAGGB-UHFFFAOYSA-L 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
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Abstract
本发明提供一种微波陶瓷SrO‑ZnO(MgO)‑TiO2及制法,该微波陶瓷SrO‑ZnO(MgO)‑TiO2的化学表达式为(1‑z)[SrO‑xZnO‑yMgO]‑zTiO2,其中0<x<1,x+y=1.0,z=0.1~0.2摩尔比含量;以SrO、ZnO、MgO和TiO2为原料,按照SrO:ZnO:MgO:TiO2=(1‑z):x(1‑z):y(1‑z):z摩尔比,加入占原料2.5%~5%质量比的助剂制成。本发明的陶瓷具有较低的烧结温度,介电常数适中,品质因数较高,谐振频率温度系数小且连续可调,可以用于微波介质谐振器、滤波器。
Description
技术领域
本发明涉及电子材料领域,特别是涉及到一种微波陶瓷SrO-ZnO(MgO)-TiO2及制法。
背景技术
微波介质陶瓷指适用于微波频段(300MHz~3000GHz)的低损耗、温度稳定的信息功能陶瓷材料,广泛应用于谐振器、滤波器、电容器、振荡器、双工器、介质波导、基板和天线等,是移动通信、卫星通信、全球卫星定位***(GPS)、军事雷达、无线局域网(WLAN)以及物联网(IOT)等现代微波通信技术的关键材料,对微波元器件的小型化和提高器件的选择性具有重要的意义。近年来随着微波通讯技术的迅猛发展,微波介质陶瓷成为国内外研究的热点,日益受到各国的高度重视。微波介质陶瓷的介电性能主要包括三个参数:介电常数εr、介电损耗tanδ(品质因数Q=1/tanδ)以及谐振频率温度系数τf。高性能的微波介质陶瓷不同于一般的功能陶瓷,它需要满足相对介电常数大、品质因数高、谐振频率温度系数近0且可调等要求。
为了降低成本,必须制备具有较低烧结温度的陶瓷。LTCC材料作为整个低温共烧陶瓷技术的基础,其中电极材料和基板材料的化学兼容性问题是研究的主要内容之一。选用Ag金属作为电极材料,主要是因为其导电率高、烙点相对较低(961℃)和烧结过程中不易被氧化的优点。为了能够与Ag电极进行共烧,LTCC材料的最佳烧结温度不得髙于950℃,且与Ag电极不发生任何化学反应。然而,大多数性能优异的陶瓷介质材料的烧结温度都相对较高,需要大力研发低温烧结的微波陶瓷。为此我们发明了一种新的低温烧结微波复合陶瓷SrO-ZnO(MgO)-TiO2及制法,满足了LTCC工艺的需要,是一种有前途的微波材料。
发明内容
本发明的目的之一是提供一种具有适中介电常数的、介电性能优良的微波复合陶瓷,可以作为微波介质谐振器、滤波器的微波陶瓷SrO-ZnO(MgO)-TiO2;目的之二是提供微波陶瓷SrO-ZnO(MgO)-TiO2制备方法。
本发明的目的之一可通过如下技术措施来实现:
该微波陶瓷SrO-ZnO(MgO)-TiO2的化学表达式为(1-z)[SrO-xZnO-yMgO]-zTiO2,其中0<x<1,x+y=1.0,z=0.1~0.2摩尔比含量;以SrO、ZnO、MgO和TiO2为原料,按照SrO:ZnO:MgO:TiO2=(1-z):x(1-z):y(1-z):z摩尔比,加入占原料2.5%~5%质量比的烧结助剂制成。
本发明的目的之一还可通过如下技术措施来实现:
进一步,所述的原料为SrO、ZnO、MgO和TiO2按照SrO:ZnO:MgO:TiO2=(1-(0.14~0.18)):x(1-(0.14~0.18)):y(1-(0.14~0.18)):0.14~0.18摩尔比配比混合而成。
更进一步,所述的原料为SrO、ZnO、MgO和TiO2按照SrO:ZnO:MgO:TiO2=0.84:0.84x:0.84y:0.16摩尔比配比混合而成。
进一步,所述的原料为SrO、ZnO、MgO和TiO2按照SrO:ZnO:MgO:TiO2=(1-z):(1-z)(0.1~0.9):(1-z)(1-(0.1~0.9)):z摩尔比配比混合而成。
更进一步,所述的原料为SrO、ZnO、MgO和TiO2按照SrO:ZnO:MgO:TiO2=(1-z):0.8(1-z):0.2(1-z):z摩尔比配比混合而成。
进一步,所述的原料为SrO、ZnO、MgO和TiO2按照SrO:ZnO:MgO:TiO2=0.84:0.672:0.168:0.16摩尔比配比混合而成。
更进一步,所述的烧结助剂为SrCu(B2O5)、复合氧化物、MnO2的一种或多种任意配比的混合。
进一步,所述的烧结助剂占原料3%~4.5%质量份。
更进一步,所述的烧结助剂占原料4%质量份。
本发明的目的之二可通过如下技术措施来实现:
用上述的原料和烧结助剂制备微波陶瓷SrO-ZnO(MgO)-TiO2的制备方法,所述的制备方法按如下步骤进行:
步骤1,按照原料配比称取原料;
步骤2,将步骤1的原料放入球磨机中,加入去离子水和氧化锆球,球磨2~8小时,再将球磨后的原料烘干,过筛,得颗粒均匀的粉料;
步骤3,将经过步骤2处理的粉料升温至1000℃-1100℃,保温2~8小时,得预烧料;
步骤4,将经过步骤3处理的预烧料放入球磨机中,再加入烧结助剂,然后再加入去离子水和氧化锆球,球磨2~12小时,最后将球磨后的原料烘干;
步骤5,取步骤4经烘干后的预烧料加入聚丙烯醇PVA溶液,造粒,再用粉末压片机压制成坯体;
步骤6,将坯体在空气中于850~950℃下经过2~12小时烧制,得产品。
本发明的目的之二还可通过如下技术措施来实现:
进一步,步骤2中所述的球磨时间为5小时;步骤3中所述的升温为1080℃,保温5小时;步骤4中所述的球磨时间为6小时;步骤6中所述的坯体于910℃下烧制8小时。
更进一步,该微波陶瓷SrO-ZnO(MgO)-TiO2的制备方法还包括,在步骤6之后,通过网络分析仪测试制品的微波介电性能,测试的微波介电性能包括介电常数εr、品质因数Qf以及谐振频率温度系数τf。
本发明中的微波陶瓷SrO-ZnO(MgO)-TiO2及制法,属于电子材料技术领域,该陶瓷以SrO-ZnO(MgO)-TiO2为主材、添加剂1为SrCu(B2O5)、添加剂2为复合氧化物、添加剂3为MnO2。以高纯度的SrCO3、ZnO、碱式碳酸镁和TiO2为原料合成SrO-ZnO(MgO)-TiO2主材;以B2O3、CuO和SrCO3为原料合成添加剂1;以SrCO3、TiO2、ZnO、B2O3和SiO2为原料合成添加剂2;将添加剂1~3这3种添加剂添加到SrO-ZnO(MgO)-TiO2主材中(添加剂含量介于2.5wt%~5wt%),经球磨、干燥、过筛、聚乙烯醇PVA造粒、成型和排胶处理后在空气中于850~950℃下经过2~12小时烧成。本发明制备的低温烧结微波陶瓷材料,具有适中的介电常数εr(30~40)和高的Q值(Qf介于23000~40000),频率温度系数近零且可调的(-20ppm/℃≤τf≤+15ppm/℃),良好的工艺稳定性。
附图说明
图1为本发明的微波陶瓷SrO-ZnO(MgO)-TiO2制备方法的一具体实施例的流程图。
具体实施方式
为使本发明的上述和其他目的、特征和优点能更明显易懂,下面结合具体实施例对本发明作进一步详细说明。以下实施例所涉及的配方是非限定性实施方式,只是用于具体说明本发明,本领域的技术人员完全可以根据本发明的思路和选料配比筛选出的配方均为本发明的保护范围。
参照图1:
在步骤101,SrO、ZnO、MgO和TiO2按照SrO:ZnO:MgO:TiO2=(1-z):x(1-z):y(1-z):z摩尔比配比称取原料;
在步骤102,将步骤101的原料放入球磨机中,加入去离子水和氧化锆球,球磨2~8小时;再将球磨后的原料于110℃烘干,过40目筛,获得颗粒均匀的粉料;
在步骤103,将步骤102的过筛后的粉料于1000℃-1100℃预烧,并在此温度下保温2~8小时;
在步骤104,将步骤103的预烧料添加以少量SrCu(B2O5)、复合氧化物、MnO2为烧结助剂(含量介于2.5wt%~5wt%)放入球磨机中,加入去离子水和氧化锆球,球磨2~12小时;再将球磨后的原料于110℃烘干;
在步骤105,烘干后外加聚丙烯醇PVA溶液作为粘合剂造粒,烘干后过80目筛,获得颗粒均匀的粉料,用粉末压片机压制成坯体;
在步骤106,将上述坯体在空气中于850~950℃下经过2~12小时烧成,制成微波陶瓷;
在步骤107,通过网络分析仪测试制品的微波介电性能。测试的微波介电性能包括介电常数εr、介电损耗tanδ(品质因数Q=1/tanδ)以及谐振频率温度系数τf。
本发明的陶瓷具有较低的烧结温度,介电常数适中,品质因数较高,谐振频率温度系数小且连续可调,可以用于微波介质谐振器、滤波器。本发明工艺简单,过程无污染,是一种很有发展前途的中介电常数微波介质材料。
以下为本发明的几个具体应用实施例。
实施例1:
该微波陶瓷SrO-ZnO(MgO)-TiO2的化学表达式为0.9[SrO-(Zn0.1Mg0.9)O]-0.1TiO2,其制备方法为:
用上述的原料和烧结助剂制备微波陶瓷SrO-ZnO(MgO)-TiO2的方法,该方法按如下步骤进行:
步骤1,将高纯度的SrO、ZnO、MgO和TiO2按照SrO:ZnO:MgO:TiO2=0.9:0.09:0.81:0.1的摩尔比配比称取原料;
步骤2,将步骤1的原料放入行星式球磨机里,加入去离子水和氧化锆球,球磨8小时,再将球磨后的原料在电热鼓风式干燥箱里于110℃条件下烘干,烘干后的粉料过50目筛,得颗粒均匀的粉料;
步骤3,将经过步骤2处理的粉料升温至1000℃,保温2小时,得预烧料;
步骤4,将经过步骤3处理的预烧料放入球磨机中,再加入SrCu(B2O5)、复合氧化物、MnO2的一种或多种任意配比的烧结助剂,烧结助剂的加入量占原料5%质量份,然后在聚氨酯球磨机中加入去离子水和氧化锆球,球磨12小时,最后将球磨后的原料于110℃下烘干;
步骤5,取步骤4经烘干后的预烧料加入聚丙烯醇PVA溶液,造粒,再用粉末压片机压制成坯体,压制成一定尺寸的圆柱形坯体;
步骤6,将坯体在空气中于950℃下经过12小时烧制,得产品。随炉冷却之后经测试,介电性能为εr=30;Qf=40000,τf=-20ppm/℃。
实施例2:
该微波陶瓷SrO-ZnO(MgO)-TiO2的化学表达式为0.8[SrO-(Zn0.9Mg0.1)O]-0.2TiO2,其制备方法为:
用上述的原料和烧结助剂制备微波陶瓷SrO-ZnO(MgO)-TiO2的方法,该方法按如下步骤进行:
步骤1,将高纯度的SrO、ZnO、MgO和TiO2按照SrO:ZnO:MgO:TiO2=0.8:0.72:0.08:0.2的摩尔比配比称取原料;
步骤2,将步骤1的原料放入行星式球磨机里,加入去离子水和氧化锆球,球磨2小时,再将球磨后的原料在电热鼓风式干燥箱里于110℃条件下烘干,烘干后的粉料过50目筛,得颗粒均匀的粉料;
步骤3,将经过步骤2处理的粉料升温至1100℃,保温8小时,得预烧料;
步骤4,将经过步骤3处理的预烧料放入球磨机中,再加入SrCu(B2O5)、复合氧化物、MnO2的一种或多种任意配比的烧结助剂,烧结助剂的加入量占原料2.5%质量份,然后在聚氨酯球磨机中加入去离子水和氧化锆球,球磨2小时,最后将球磨后的原料于110℃下烘干;
步骤5,取步骤4经烘干后的预烧料加入聚丙烯醇PVA溶液,造粒,再用粉末压片机压制成坯体,压制成一定尺寸的圆柱形坯体;
步骤6,将坯体在空气中于850℃下经过2小时烧制,得产品。随炉冷却之后经测试,介电性能为εr=40;Qf=23000,τf=15ppm/℃。
实施例3:
该微波陶瓷SrO-ZnO(MgO)-TiO2的化学表达式为0.86[SrO-(Zn0.5Mg0.5)O]-0.14TiO2,其制备方法为:
用上述的原料和烧结助剂制备微波陶瓷SrO-ZnO(MgO)-TiO2的方法,该方法按如下步骤进行:
步骤1,将高纯度的SrO、ZnO、MgO和TiO2按照SrO:ZnO:MgO:TiO2=0.86:0.43:0.43:0.14的摩尔比配比称取原料;
步骤2,将步骤1的原料放入行星式球磨机里,加入去离子水和氧化锆球,球磨4小时,再将球磨后的原料在电热鼓风式干燥箱里于110℃条件下烘干,烘干后的粉料过50目筛,得颗粒均匀的粉料;
步骤3,将经过步骤2处理的粉料升温至1050℃,保温4小时,得预烧料;
步骤4,将经过步骤3处理的预烧料放入球磨机中,再加入SrCu(B2O5)、复合氧化物、MnO2的一种或多种任意配比的烧结助剂,烧结助剂的加入量占原料3%质量份,然后在聚氨酯球磨机中加入去离子水和氧化锆球,球磨6小时,最后将球磨后的原料于110℃下烘干;
步骤5,取步骤4经烘干后的预烧料加入聚丙烯醇PVA溶液,造粒,再用粉末压片机压制成坯体,压制成一定尺寸的圆柱形坯体;
步骤6,将坯体在空气中于900℃下经过6小时烧制,得产品。随炉冷却之后经测试,介电性能为εr=35.4;Qf=32789,τf=-8.5ppm/℃。
实施例4:
该微波陶瓷SrO-ZnO(MgO)-TiO2的化学表达式为0.82[SrO-(Zn0.6Mg0.4)O]-0.18TiO2,其制备方法为:
用上述的原料和烧结助剂制备微波陶瓷SrO-ZnO(MgO)-TiO2的方法,该方法按如下步骤进行:
步骤1,将高纯度的SrO、ZnO、MgO和TiO2按照SrO:ZnO:MgO:TiO2=0.82:0.492:0.328:0.18的摩尔比配比称取原料;
步骤2,将步骤1的原料放入行星式球磨机里,加入去离子水和氧化锆球,球磨4小时,再将球磨后的原料在电热鼓风式干燥箱里于110℃条件下烘干,烘干后的粉料过50目筛,得颗粒均匀的粉料;
步骤3,将经过步骤2处理的粉料升温至1060℃,保温4小时,得预烧料;
步骤4,将经过步骤3处理的预烧料放入球磨机中,再加入SrCu(B2O5)、复合氧化物、MnO2的一种或多种任意配比的烧结助剂,烧结助剂的加入量占原料4.5%质量份,然后在聚氨酯球磨机中加入去离子水和氧化锆球,球磨6小时,最后将球磨后的原料于110℃下烘干;
步骤5,取步骤4经烘干后的预烧料加入聚丙烯醇PVA溶液,造粒,再用粉末压片机压制成坯体,压制成一定尺寸的圆柱形坯体;
步骤6,将坯体在空气中于930℃下经过6小时烧制,得产品。随炉冷却之后经测试,介电性能为εr=35.8;Qf=23200,τf=-19.7ppm/℃。
实施例5:
该微波陶瓷SrO-ZnO(MgO)-TiO2的化学表达式为0.84[SrO-(Zn0.8Mg0.2)O]-0.16TiO2,其制备方法为:
用上述的原料和烧结助剂制备微波陶瓷SrO-ZnO(MgO)-TiO2的方法,该方法按如下步骤进行:
步骤1,将高纯度的SrO、ZnO、MgO和TiO2按照SrO:ZnO:MgO:TiO2=0.84:0.672:0.168:0.16的摩尔比配比称取原料;
步骤2,将步骤1的原料放入行星式球磨机里,加入去离子水和氧化锆球,球磨5小时,再将球磨后的原料在电热鼓风式干燥箱里于110℃条件下烘干,烘干后的粉料过50目筛,得颗粒均匀的粉料;
步骤3,将经过步骤2处理的粉料升温至1080℃,保温5小时,得预烧料;
步骤4,将经过步骤3处理的预烧料放入球磨机中,再加入SrCu(B2O5)、复合氧化物、MnO2的一种或多种任意配比的烧结助剂,烧结助剂的加入量占原料4%质量份,然后在聚氨酯球磨机中加入去离子水和氧化锆球,球磨6小时,最后将球磨后的原料于110℃下烘干;
步骤5,取步骤4经烘干后的预烧料加入聚丙烯醇PVA溶液,造粒,再用粉末压片机压制成坯体,压制成一定尺寸的圆柱形坯体;
步骤6,将坯体在空气中于910℃下经过8小时烧制,得产品。随炉冷却之后经测试,介电性能为εr=32.1;Qf=36884,τf=-12.8ppm/℃。
以上所述,仅为本发明其中的具体实施方式,但本发明专利的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明专利揭示的技术范围内,可轻易想到的变化或替换,都应涵盖在本发明专利的保护范围之内。
Claims (12)
1.微波陶瓷SrO-ZnO(MgO)-TiO2,其特征在于,该微波陶瓷SrO-ZnO(MgO)-TiO2的化学表达式为(1-z)[SrO-xZnO-yMgO]-zTiO2,其中0<x<1,x+y=1.0,z=0.1~0.2摩尔比含量;以SrO、ZnO、MgO和TiO2为原料,按照SrO:ZnO:MgO:TiO2=(1-z):x(1-z):y(1-z):z摩尔比,加入占原料2.5%~5%质量比的烧结助剂制成。
2.根据权利要求1所述的微波陶瓷SrO-ZnO(MgO)-TiO2,其特征在于,所述的原料为SrO、ZnO、MgO和TiO2按照SrO:ZnO:MgO:TiO2=(1-(0.14~0.18)):x(1-(0.14~0.18)):y(1-(0.14~0.18)):0.14~0.18摩尔比配比混合而成。
3.根据权利要求1所述的微波陶瓷SrO-ZnO(MgO)-TiO2,其特征在于,所述的原料为SrO、ZnO、MgO和TiO2按照SrO:ZnO:MgO:TiO2=0.84:0.84x:0.84y:0.16摩尔比配比混合而成。
4.根据权利要求1所述的微波陶瓷SrO-ZnO(MgO)-TiO2,其特征在于,所述的原料为SrO、ZnO、MgO和TiO2按照SrO:ZnO:MgO:TiO2=(1-z):(1-z)(0.1~0.9):(1-z)(1-(0.1~0.9)):z摩尔比配比混合而成。
5.根据权利要求1所述的微波陶瓷SrO-ZnO(MgO)-TiO2,其特征在于,所述的原料为SrO、ZnO、MgO和TiO2按照SrO:ZnO:MgO:TiO2=(1-z):0.8(1-z):0.2(1-z):z摩尔比配比混合而成。
6.根据权利要求1所述的微波陶瓷SrO-ZnO(MgO)-TiO2,其特征在于,所述的原料为SrO、ZnO、MgO和TiO2按照SrO:ZnO:MgO:TiO2=0.84:0.672:0.168:0.16摩尔比配比混合而成。
7.根据权利要求1所述的微波陶瓷SrO-ZnO(MgO)-TiO2,其特征在于,所述的烧结助剂为SrCu(B2O5)、复合氧化物、MnO2的一种或多种任意配比的混合。
8.根据权利要求1所述的微波陶瓷SrO-ZnO(MgO)-TiO2,其特征在于,所述的烧结助剂占原料3%~4.5%质量份。
9.根据权利要求1所述的微波陶瓷SrO-ZnO(MgO)-TiO2,其特征在于,所述的烧结助剂占原料4%质量份。
10.权利要求1~9所述的微波陶瓷SrO-ZnO(MgO)-TiO2的制备方法,其特征在于,所述的制备方法按如下步骤进行:
步骤1,按照原料配比称取原料;
步骤2,将步骤1的原料放入球磨机中,加入去离子水和氧化锆球,球磨2~8小时,再将球磨后的原料烘干,过筛,得颗粒均匀的粉料;
步骤3,将经过步骤2处理的粉料升温至1000℃-1100℃,保温2~8小时,得预烧料;
步骤4,将经过步骤3处理的预烧料放入球磨机中,再加入烧结助剂,然后再加入去离子水和氧化锆球,球磨2~12小时,最后将球磨后的原料烘干;
步骤5,取步骤4经烘干后的预烧料加入聚丙烯醇PVA溶液,造粒,再用粉末压片机压制成坯体;
步骤6,将坯体在空气中于850~950℃下经过2~12小时烧制,得产品。
11.根据权利要求10所述的微波陶瓷SrO-ZnO(MgO)-TiO2的制备方法,其特征在于,步骤2中所述的球磨时间为5小时;步骤3中所述的升温为1080℃,保温5小时;步骤4中所述的球磨时间为6小时;步骤6中所述的坯体于910℃下烧制8小时。
12.根据权利要求10所述的微波陶瓷SrO-ZnO(MgO)-TiO2的制备方法,其特征在于,该微波陶瓷SrO-ZnO(MgO)-TiO2的制备方法还包括,在步骤6之后,通过网络分析仪测试制品的微波介电性能,测试的微波介电性能包括介电常数εr、品质因数Qf以及谐振频率温度系数τf。
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CN112341189A (zh) * | 2020-11-25 | 2021-02-09 | 无锡鑫圣慧龙纳米陶瓷技术有限公司 | 一种温度稳定型低介电常数微波介质陶瓷及其制备方法 |
CN112341189B (zh) * | 2020-11-25 | 2022-08-02 | 无锡鑫圣慧龙纳米陶瓷技术有限公司 | 一种温度稳定型低介电常数微波介质陶瓷及其制备方法 |
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