کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1627579 | 1516455 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
New inorganic pigments in the Ca-Nd-S system: Stabilization of γ phase
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: New inorganic pigments in the Ca-Nd-S system: Stabilization of γ phase New inorganic pigments in the Ca-Nd-S system: Stabilization of γ phase](/preview/png/1627579.png)
چکیده انگلیسی
The structure-microstructure and colour properties of the Ca(3/2)yNd2âyâ¡0.25â(1/2)yS3 (0 â¤Â y â¤Â 0.5) system are studied in this work. The sample with y = 0 (Nd2S3) presents the α-type structure of the light lanthanide sesquisulphides while the samples containing Ca2+ (y > 0) present the γ-Th3P4 type structure. The introduction of Ca2+ cations in the system, according to the relation 3Ca2+ â 2Nd3+ + ⡠(â¡: cation vacancy), induces the stabilization of the γ-phase at 1173 K, even at very low Ca2+ concentration. The samples colour characteristics were studied from reflectance spectra in the visible region. When y > 0, the samples present good quality green colour. This system has possible applications as inorganic pigments for plastics and paints.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 418, Issues 1â2, 20 July 2006, Pages 86-89
Journal: Journal of Alloys and Compounds - Volume 418, Issues 1â2, 20 July 2006, Pages 86-89
نویسندگان
E. Urones-Garrote, F. Fernández MartÃnez, A.R. Landa-Cánovas, L. Carlos Otero-DÃaz,