Sm2fe17 xrd
Webb1 apr. 2006 · Sm2Fe17−xNbx powder exhibits dendritic cracks and fine particles with a size of less than 300 nm. In nitrogenated alloys, N atoms mainly enter 2:17-type phase to … Webb001-0909.pdf 2 31 粉末試料は多結晶であり，いずれの角度 hkl においてもブラッグの法則で示される回折が可能となる方向を向いて 32 いる微結晶が存在する(2)．一定の波長のX 線に対して，回折ピーク（回折線，反射又はブラッグ反射とも呼ばれる） 33 の位置は結晶格子（d-間隔）の特性を示し ...
Sm2fe17 xrd
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Webb6 juni 2000 · Isothermal hydrogenation of Sm 2 Fe 17−y Ga y The XRD patterns of the starting powders showed traces of additional phases e.g. SmFe 2, SmFe 3 and α-Fe. GaSm was detected in the powders with the highest Ga-concentration. The content of the additional phases was less than 3 wt%. Webbspecimen with a composition of Sm:Fe=2:17. From the results of X-ray diffraction (XRD), an expected Sm2Fe17 phase, and small amounts of SmFe2, SmN, and ƒ¿-Fe phases were …
Webb18 aug. 2015 · Sm2Fe17 alloy is the intermediate material for the preparation of Sm2Fe17Nx (x ≈ 3); thus, the synthesis of pure Sm2Fe17 mother alloy is the key to … Webb2 apr. 2016 · 1900 鉄 と 鋼 第56年(1970)第14号. Fig.2. Diagram of Fe-O-H system3). 570C以 下ではFe304+4H2二3Fe+4H念0 これらの反応の平衡分圧比は各反応の平衡定数κ=PH2o
Webb1 nov. 2014 · By means of comprehensive experimental and XRD and SEM analysis, the optimum conditions for preparing the precursor of Sm2Fe17 alloy by co-precipitation were obtained and it laid a sound foundation for the subsequent preparation of high-performance magnetic material. WebbABSTRACT : Samples of Sm2Fe17-xCox (x = 0.5 –3) arc-melted and subsequently annealed at a temperature 1225 K, were studied by X-ray diffraction (XRD), using the Rietveld …
Webb1 dec. 2024 · The composition, crystal structure, elements distribution, chemical valence and induced mechanism of Sm 2 Fe 17 alloy were analyzed and characterized by ICP, …
Webb1 feb. 2013 · The Sm 2 Fe 17 F x2 identified by the XRD pattern corresponded to the phase near the surface of the grains with high fluorine concentration shown in Fig. 1 (3). These results indicate that the following reaction occurred on the surface of the Sm 2 Fe 17 grain: Sm 2 Fe 17 + x 2 XeF 2 = Sm 2 Fe 17 F x + x 2 Xe hbz business onlineWebb1 nov. 2024 · Sm2Fe17 alloy is the intermediate material for the preparation of Sm2Fe17Nx (x ≈ 3); thus, the synthesis of pure Sm2Fe17 mother alloy is the key to obtaining high … hbz bounceWebbトップ ｜沿革｜ 事業 ｜ 相互協力便覧 ｜ 会報 ｜ 規程 ｜ 加盟館一覧 群馬県大学図書館協議会 akagiサービス終了のお知らせ hbzdv3624n conversion kitWebbAbstract In this work, the Rietveld analysis shows that for Sm2Fe17−x Mo x ,x≤0.58, the structure is rhombohedral of Th2Zn17 type, for x=1 the structure is tetragonal of … hbzhan.comWebb因Sm2Fe17母合金的晶体结构与成分和快淬速度、晶化温度等密 切关系，所以用快淬法制备Sm2Fe17Nx化合物粉末的磁性能对结构十分敏感。Sm2Fe17Nx化合物 具有Th2Zn17（2：17型）结构，在某些特定的条件下，Sm2Fe17Nx化合物也具有TbCu7（1：9型） 结构。 hbz business bankingWebb2 apr. 2016 · 1900 鉄 と 鋼 第56年(1970)第14号. Fig.2. Diagram of Fe-O-H system3). 570C以 下ではFe304+4H2二3Fe+4H念0 これらの反応の平衡分圧比は各反応の平衡定 … hbzhouguan.comWebbSm2Fe17 (a) 1㎛ X20k 35 40 45 50 55 60 +''5 u.) Sm2Fe17 &XN D Û SmFe9 (b) • Grain size : 300nm • Grain size : 500nm • Crystal structure : Hexagonal (TbCu 7) • Crystal structure : Rhombohedral (Th 2 Zn 17) α-Fe α-Fe SmH 2 Most high Coercivity : particle size 25-53㎛, Sm 2 Fe 17 N 3 HDDR powder on treated 900℃. Nitrided region of ... hbzdv3828 heater