Lei Miao
,
Sakae Tanemura
,
Thi Hue Nguyen
,
Li Luo
,
Masaki Tanemura
,
Shoichi Toh
,
Kenji Kaneko
,
Masahiro Kawasaki
材料科学技术（英）
An alternative sol-gel method has been applied to fabricate anatase and rutile TiO2 coatings uniformly on Al scale fibers with very thin naturally oxidized layer from mixed precursors of Ti tetraisopropoxide, acetyl acetone, deionizer water and ethanol in different molar ratios. The crystal structure of TiO2 coatings on Al scale fiber was confirmed by both XRD and TEM. The surface morphology of the coatings was observed by SEM and the chemical composition of the grown TiO2 was analyzed by EDS in TEM. Anatase coating, having a fine crystalline structure, was grown at 450℃ while rutile was being done at 670℃. The TEM results indicated that the fabricated TiO2 coatings consisted of anatase/rutile polycrystalline structures. The optimal fabrication conditions for TiO2 coatings with about 400 nm in thickness on Al scale fibers were established through the characterization results.
关键词:
Sol-gel method
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null
,
null
,
null
,
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路莹
,
韩运侠
低温物理学报
基于晶场理论，我们模拟了Kawasaki小组测量的磁化率倒数与温度关系曲线，使用点电荷晶场模型得到了伪二元合金CePt1-x，Rhx（0≤x≤0．9）的晶场分裂能和相应波函数．计算表明，Kramers离子Ce^3＋在晶场效应的作用下，基态简并部分消除得到了三个双重态，模拟得到的化合物的磁化率倒数与温度关系曲线与实验曲线吻合较好．本研究为进一步研究CePt1-xRhx的磁结构提供了参考．
关键词:
CePt1-xRk
,
磁化率
,
晶场效应
