采用直流磁控溅射法在空芯玻璃微球表面镀Al膜,将空芯玻璃微球、镀AJ膜玻璃微球和高分子粘合剂按一定比例混合制成人工介质材料.用波导法测量人工介质材料的介电常数,并采用有效媒质理论对测试结果进行分析.结果表明,在8～12 GHz频率范围内,人工介质材料的介电常数随镀Al膜玻璃微球含量的增加而增加,其介电常数在2～5范围内可调.再经热处理工艺优化,人工介质材料的介电损耗正切值可降至0.015以下.
参考文献
| [1] | Xu Hongfei;Xu Lina;Gu Ning .A new electromagnetic functional material composed of metallic hollow micro-spheres[J].Journal of Southeast University,2003(1):8-11. |
| [2] | 李寅彦,毛昌辉,杨志民,杜军,唐群.空芯玻璃微球表面改性及其介电性能研究[J].稀有金属,2005(03):257-260. |
| [3] | 贾治勇,王群,周美玲,田英良.Ni-Co合金包覆空心微珠及其吸波性能[J].功能材料,2006(01):143-145,149. |
| [4] | 葛凯勇,王群,毛倩瑾,于彩霞,周美玲.空心微珠表面改性及其吸波特性[J].功能材料与器件学报,2003(01):67-70. |
| [5] | 谷红洁,毛昌辉,熊玉华,杨剑.镀Al空心玻璃微球/Ni-Zn铁氧体/环氧树脂复合材料的吸波性能研究[J].兵器材料科学与工程,2010(01):85-88. |
| [6] | Sung-Soo Kim;Seon-Tae Kim;Joon-Mo Ahn .Magnetic and microwave absorbing properties of Co-Fe thin films plated on hollow ceramic microspheres of low density[J].Journal of Magnetism and Magnetic Materials,2004(1):39-45. |
| [7] | Shukla S;Seal S;Rahaman Z et al.Electroless copper coating of cenospheres using silver nitrate activator[J].Materials Letters,2002,57:151. |
| [8] | Wu SJ.;Dejonghe LC. .ALUMINA-COATED HOLLOW GLASS SPHERES ALUMINA COMPOSITES[J].Journal of Materials Science,1997(22):6075-6084. |
| [9] | 俞晓正,徐政,沈志刚.在空心微珠表面磁控溅射镀金属薄膜的研究[J].真空科学与技术学报,2006(03):247-250. |
| [10] | Merrill W.M.;Diaz R.E.;LoRe M.M.;Squires M.C.;Alexopoulos N.G. .Effective medium theories for artificial materials composed ofmultiple sizes of spherical inclusions in a host continuum[J].IEEE Transactions on Antennas and Propagation,1999(1):142-148. |
| [11] | 段爱红 .晶体的缺陷结构与物质吸收微波的能力[J].云南师范大学学报（自然科学版）,1998,18(03):89-91. |
| [12] | Chamberlain C S;Connell G;Tai W C .Electromagnetic radiation absorbing material employing doubly layered particles[P].EP Patent,0479438A2,1992-04-08. |
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