为了提高钇铁石榴石(Yttrium iron garnet,YIG)铁氧体的稳定性,研究了微波YIG铁氧体的制备工艺,微波YIG铁氧体的配方精准性可直接决定原材料的性能,对微波YIG铁氧体进行制备时,要求微波YIG铁氧体具有精准的配方,在配置微波YIG铁氧体时,...为了提高钇铁石榴石(Yttrium iron garnet,YIG)铁氧体的稳定性,研究了微波YIG铁氧体的制备工艺,微波YIG铁氧体的配方精准性可直接决定原材料的性能,对微波YIG铁氧体进行制备时,要求微波YIG铁氧体具有精准的配方,在配置微波YIG铁氧体时,需要将其置于烘箱内部进行烘干处理。采用氧化物法完成微波YIG铁氧体的制备,并对微波YIG铁氧体进行性能测试。利用扫描电镜SEM分析微波YIG铁氧体的微观形貌,有利于实时观察试验样本性能的变化情况。试验过程中将烧结温度设为4个温度点:1 430、1 440、1 450、1 460℃,将微波YIG铁氧体置于不同的烧结温度下,分别对制备样品的性能进行测试。结果表明,随着温度的持续升高,样品的致密化程度逐渐完善,最终将1 450℃作为微波YIG铁氧体的最佳烧结温度。展开更多
Yttrium iron garnet （YIG） is widely used for microwave ferrite devices, especially for optical isolators. In this paper, ferrite ceramic target using cerium （Ce）-substituted YIG was made using ferric oxide （Fe203...Yttrium iron garnet （YIG） is widely used for microwave ferrite devices, especially for optical isolators. In this paper, ferrite ceramic target using cerium （Ce）-substituted YIG was made using ferric oxide （Fe203）, cerium oxide （CeO2） and yttrium oxide （Y2O3） powders as raw material. Ce： YIG thin films were fabricated by radio frequency （RF） magnetron sputtering. The experimental result showed that the polycrystalline YIG was obtained after sintering at 1 350 ℃ for 6 h, and the polycrystalline Ce： YIG thin films were achieved annealing up to 700 ℃ in the air.展开更多
基金National Natural Science Foundation of China(NSFC)(No.51175418)Program for New Century Excellent Talents in University(No.93JXDW02000006)+4 种基金Natural Science Foundation of Shaanxi Province(No.2011JQ7004)Fundamental Research Funds for the Central Universities of Xi'an Jiaotong University(No.2011jdgz09No.2011jdhz23No.xjj2011068)Fund of the State Key Laboratory of Digital Manufacturing Equipment & Technology(No.DMETKF2012009)
文摘Yttrium iron garnet （YIG） is widely used for microwave ferrite devices, especially for optical isolators. In this paper, ferrite ceramic target using cerium （Ce）-substituted YIG was made using ferric oxide （Fe203）, cerium oxide （CeO2） and yttrium oxide （Y2O3） powders as raw material. Ce： YIG thin films were fabricated by radio frequency （RF） magnetron sputtering. The experimental result showed that the polycrystalline YIG was obtained after sintering at 1 350 ℃ for 6 h, and the polycrystalline Ce： YIG thin films were achieved annealing up to 700 ℃ in the air.
