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低介电常数(Mg1–xYx)2Al4Si5O18 陶瓷的制备与微波介电性能

DOI: 10.14062/j.issn.0454-5648.2015.09.05

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Abstract:

采用传统陶瓷固相反应烧结法制备(Mg1–xYx)2Al4Si5O18陶瓷。Y3+掺杂产生液相烧结作用,使得堇青石陶瓷的烧结温度从1450℃降低到1325℃。结果表明(Mg1–xYx)2Al4Si5O18陶瓷在0≤x<0.05范围内,以(Mg,Y)2Al4Si5O18固溶体形式存在;在0.05≤x<0.25范围内,以Mg2Al4Si5O18/Y2Si2O7复相陶瓷形式存在。Y3+能够改善(Mg1–xYx)2Al4Si5O18陶瓷的颗粒尺寸分布,并使陶瓷的气孔率降低。(Mg1–xYx)2Al4Si5O18陶瓷的相对介电常数由x=0的6.15提高到x=0.05的6.31;然后逐渐降低至x=0.25的5.90。品质因数Qf值由x=0的33000GHz提高到x=0.05的41000GHz,然后降低至x=0.25的24000GHz。谐振频率温度系数(0.05≤x<0.25)值从–32×10–6/℃提高到–24×10–6/℃。

References

[1]  REANEY I M, IDDLES D. Microwave dielectric ceramics forresonators and filters in mobile phone networks [J]. J Am Ceram Soc,2006, 89(7): 2063–2072.
[2]  FEDERICI J, MOELLE L. Review of terahertz and sub terahertzwireless communications [J]. J Appl Phys, 2010, 107(11):111101–111123.
[3]  FUJII T, ANDO A, SAKABE Y. Characterizations of dielectricproperties of oxide materials in frequency range from GHz to THz [J].J Eur Ceram Soc, 2006, 26(10/11): 1857–1860.
[4]  王玉梅, 李玲霞, 吴霞宛, 等.(Zn1–xMgx)TiO3 微波陶瓷系统介电性能的研究[J]. 硅酸盐学报, 2004, 32(8): 911–915.WANG Yumei, LI Lingxia, WU Xiawan, et al. J Chin Ceram Soc, 2004,32(8): 911–915.
[5]  宋开新, 应智花, 徐军明, 等. (Zn1–xMgx)2SiO4 陶瓷微波介电性能研究[J]. 无机材料学报, 2010, 25(3):255–258.SONG Kaixin, YING Zhihua, XU Junming, et al. J Inorg Mater(inChinese), 2010, 25(3): 255–258.
[6]  GUO Y P, OHSATO H, KAKIMOTO K. Characterization anddielectric behavior of willemite and TiO2-doped willemite ceramics atmillimeter-wave frequency [J]. J Eur Ceram Soc, 2006, 26(10/11):1827–1830.
[7]  TERADA M, KAWAMURA K, KAGOMIYA I, et al. Effect of Nisubstitution on the microwave dielectric properties of cordierite [J]. JEur Ceram Soc, 2007, 27(8/9): 3045–3048.
[8]  JOSEPH T, SEBASTIAN M T. Microwave dielectric properties of(Sr1–xAx)2(Zn1–xBx)Si2O7 ceramics (A=Ca, Ba and B=Co, Mg, Mn, Ni)[J]. J Am Ceram Soc, 2010, 93(1): 147–154.
[9]  KRZMANC M M, VALANT M, JANCAR B, et al. Sub-solidussynthesis and microwave dielectric characterization of plagioclasefeldspars [J]. J Am Ceram Soc, 2005, 88(9): 2472–2479.
[10]  KRZMANC M M, VALANT M, SUVOROV D. The synthesis andmicrowave dielectric properties of SrxBa1–xAl2Si2O8 and CaxBa1–xAl2Si2O8ceramics [J]. J Eur Ceram Soc, 2007, 27(8): 1181–1185.
[11]  MENG S Q, YUE Z X, ZHUANG H, et al. Microwave dielectricproperties of Ba3(VO4)2-Mg2SiO4 composite ceramics [J]. J Am CeramSoc, 2010, 93(2): 359–361.
[12]  SAKUMA T, MINOWA S, KATSUMATA T. Compositionalvariation of photoluminescence from Mn doped MgAl2O4 spinel [J].Opt Mater 2014, 37: 302–305.
[13]  VRANKIC M, ZAGAR K, BIJELIC M. Microstructure of sol-gelderived Mn-doped gahnite: correlation of TEM and XRDinvestigations [J]. J Phys Chem Solids, 2014, 75(11): 1240–1244.
[14]  OHASTO H, TSUNOOKA T, SUGIYAMA T, et al. Forsteriteceramics for millimeter wave dielectrics [J]. J Electroceram, 2006,17(2–4): 445–450.
[15]  宋开新, 胡晓萍, 郑鹏, 等. (Mg1–xCax)2Al4Si5O18 陶瓷的相演变与微波介电性能[J]. 硅酸盐学报, 2012, 40(2): 300–305.SONG Kaixin, HU Xiaoping, ZHENG Peng, et al. J Chin Ceram Soc,2012, 40(2): 300–305.
[16]  IKAWA H, OTAGIRI T, IMAI O, et al, Crystal structures andmechanism of thermal expansion of high cordierite and its solidsolutions [J]. J Am Ceram Soc, 1986, 69(6): 492–498.
[17]  SHANNON R D. Dielectric polarizabilities of ions in oxides andfluorides [J]. J Appl Phys, 1993, 3(1): 348–366.
[18]  FREER R, AZOUGH F. Microstructural engineering of microwavedielectric ceramics [J]. J Eur Ceram Soc, 2008, 28(7): 1433–1441.
[19]  PENN S J, ALFORD N MCN, TEMPLETON A, et al. Effect ofporosity and grain size on the microwave dielectric properties ofsintered alumina [J]. J Am Ceram Soc, 1997, 80(7): 1885–1888.
[20]  OHASTO H, KAGOMIYA I, KAKIMOTO K. Origin of improvementof Q based on high symmetry accompanying Si-Al Disordering incordierite millimeter-wave ceramics [J]. J Eur Ceram Soc, 2010, 30(2):315–318.
[21]  HAKKI B W, COLEMAN P D. A dielectric resonant method ofmeasuring inductive capacitance in the millimeter range [J].IEEE Trans Microw Theory Tech, 1960, 8(7): 402–410.
[22]  王晓凤. La3+/CeO2 对堇青石陶瓷的改性研究[D]. 呼和浩特:内蒙古工业大学硕士学位论文, 2005.WANG Xiaofeng. The effects of La3+/CeO2 doping on cordieriteceramics (in Chinese, dissertation), Huhehaote: Inner MongoliaUniversity of Technology, 2005.

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