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diffraction (XRD), scanning electron microscopy (SEM),diffused reflectance (DR) in the UV-vis, and magnetic measurements. The crystal structure examined by X-ray powder diffraction indicated that the samples... refinement of the materials. Key words:oxides; combustion synthesis; X-ray diffraction; antiferromagnetic; rare earths; [全文内容正在添加中] ......
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. The specifics of a particular KLTN∶Ce growth were presented. X-ray diffraction spectra of paraelectric and ferroelectric KLTN crystals were illustrated. Dielectric and absorption studies on KLTN∶Ce were carried out compared with pure KLTN. Key words:top seeded solution growth; KLTN; X-ray diffraction; dielectric materials; [全文内容正在添加中] ......
,c=2.575 am和a=0.5265 nm,b=0.9219 nm,c=2.570 nm.并对Pd-RE合金系和Pt-RE合金系中最富Pd化合物的化学计量和晶体结构进行了对比. 关键词:金属间化合物CePd5; PrPd5; NdPd5; X射线衍射数据; 晶体结构; intermetallic compound CePd5; PrPd5; NdPd5; X-ray diffraction...金属间化合物CePd5,PrPd5和NdPd5的晶体结构 张康侯1 (1.昆明贵金属研究所,云南,昆明,650221) 摘要:稀土金属对富Pd合金的氢化性能,磁学性能和催化性能有显著的影响,对Pd-RE合金系中最富Pd的化合物的研究是有意义的.本工作通过恰当的熔炼和热处理工艺制备出单相的金属间化合物CePd5,PrPd5和NdPd5,并应用X射线衍射分析确定了它们的晶体结构和晶格参数.研究......
硼碳氮薄膜的制备与表征 卢铁城1,廖志君1,伍登学1,范强1,刘振良1,杨水长1 (1.四川大学,辐射物理与技术教育部重点实验室,四川,成都,610064;2.中科院国际材料中心,辽宁,沈阳,110015) 摘要:用电子束蒸发的方法在单晶硅(100)基片上制备了硼碳氮薄膜,通过椭圆偏振仪,X射线衍射仪(XRD),X光电子能谱仪(XPS),傅立叶红外光谱仪(FTIR),测试分析了薄膜厚度均匀性,成分与结构.结果表明,薄膜均匀性较好,薄膜的沉积速率非常慢;薄膜在衬底温度为常温下沉积已是晶态的,随着衬底温度升高到450 ℃,其结晶性逐渐增强;薄膜不是石墨与BN的混和膜而是C,B,N相互结合成键. 关键词:硼碳氮薄膜; XPS; XRD; FTIR; boron carbon nitride thin films; X-ray diffraction (XRD); X-ray......
SYNTHESIS AND X-RAY POWDER STUDY OF A NEW COMPOUND:Ba6Ti7Nb9O42方亮摘 要:<正> A new compound Ba6Ti7Nb9O42 was prepared for the first time by solid state reaction in BaO-TiO2-Nb2O5, ternary system. The X-ray powder diffraction data of the title compound was determined. Ba6Ti7Nb9O42 crystallizes in the hexagonal system -with unit cell parameters a=9.0527......
衍射分析; 晶格常数; 错配度; single-crystal nickel-based superalloy; X-ray diffraction analysis; lattice parameter; misfit; [全文内容正在添加中] ...Re及温度对单晶镍基合金晶格常数及错配度的影响 钱本江1,于兴福1,田素贵1,王明罡1 (1.沈阳工业大学,辽宁,沈阳,110178;2.长春工业大学,吉林,长春,130012) 摘要:通过对不同状态及不同Re含量单晶镍基合金进行高,低温X射线衍射谱线测定及组织形貌观察,研究Re含量及温度对单晶镍基合金中γ,γ''两相晶格常数及错配度的影响.结果表明:铸态合金中γ,γ''两相有较大的晶格常......
analysis was carried out using X-ray diffraction and differential thermal analysis on short samples heattreated at 700, 850 and 920℃ in vacuum, respectively. The reaction mechanism of MgB2 core during... tapes. Key words: ex-situ MgB2/Fe superconducting tape; X-ray diffraction refinement; differential thermal analysis; phase composition analysis MgB2是2001年由日本科学家发现的一种简单的二元化合物超导材料[1......
was discovered. By means of high-temperature X-ray diffraction, phase transitions were studied and thermal expansion coefficients were determined. Key words:perovskite; uranium; X-ray diffraction; Rietveld......