نتایج جستجو برای: xrd patterns

تعداد نتایج: 435420  

Journal: :Chemistry Central Journal 2009
Mithun Goswami Pabitra K Nayak N Periasamy PK Madhu

BACKGROUND Organic light emitting devices (OLED) are becoming important and characterisation of them, in terms of structure, charge distribution, and intermolecular interactions, is important. Tris(8-hydroxyquinolinato)-aluminium(III), known as Alq3, an organomettalic complex has become a reference material of great importance in OLED. It is important to elucidate the structural details of Alq3...

2017
Malkeshkumar Patel Joondong Kim

In this data article, we presented the structural, optical, and electrical data of the nanodisk-shaped SnS layers. A facile formation of orthorhombic SnS derived from SnS2 particles was discussed in our previous study (Patel et al., 2017) [1]. The data includes the standard XRD patterns supercell structure of the Orthorhombic SnS material, the photograph of prepared samples, thickness dependent...

A conducting lithium aluminum germanium phosphate (LAGP) glass-ceramic with a formula of Li1.5Al0.5Ge1.5(PO4)3 was synthesized by melt-quenching method and subsequent crystallization at 850 °C for 8 h. The prepared glass-ceramic was characterized using differential scanning calorimetry (DSC), X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and AC impedance techniqu...

2001
H. Takagi K. Maruyama N. Yoshizawa Y. Yamada Y. Sato

X-ray diffraction (XRD) analysis is a fundamental method to evaluate the carbon stacking structure in coal and carbon materials. However, the vagueness of XRD pattern of coal, which has the low crystallinity, often makes it difficult to evaluate the stacking structure quantitatively. In a previous study [1,2], we reported the standard analysis of carbon stacking structure in coal by XRD techniq...

2015
Robert A. Varin Ewelina E. Kościuczyk Tomasz Czujko

LiAlH4 and CaCl2 were employed for mechano-chemical activation synthesis (MCAS) of Ca(AlH4)2 and LiCl hydride composite. After short ball milling time, their X-ray diffraction (XRD) peaks are clearly observed. After ball milling for a longer duration than 0.5 h, the CaAlH5 diffraction peaks are observed which indicates that Ca(AlH4)2 starts decomposing during ball milling into CaAlH5+Al+1.5H2. ...

2011
M. A. S. Karal F. A. Khan

(Fe100-xVx)75P15C10 (x=0, 5, 10 and 15) semiamorphous alloys were prepared by the melt spinning technique and their structural, thermal and magnetic properties were investigated. The structure of the alloys was studied by X-ray diffraction (XRD) for annealing temperatures of 400 oC to 650 oC within a 30 minute annealing time. The XRD patterns show that the samples contain a BCC structure for te...

2011
N Montazeri R Jahandideh Esmaeil Biazar

In this study, calcium phosphate nanoparticles with two phases, fluorapatite (FA; Ca(10)(PO(4))(6)F(2)) and hydroxyapatite (HA; Ca(10)(PO(4))(6)(OH)(2)), were prepared using the solgel method. Ethyl phosphate, hydrated calcium nitrate, and ammonium fluoride were used, respectively, as P, Ca, and F precursors with a Ca:P ratio of 1:72. Powders obtained from the sol-gel process were studied after...

2005
Pierre Ricou Eliette Pinel Nikola Juhasz

The calculation of the crystalline index (CI) of polymeric materials by X-ray diffraction (XRD) may be rendered difficult by the number of overlapping crystalline phases and amorphous halos that contribute to the diffraction pattern. Rilsan Polyamide-11 (PA-11), produced by Arkema Inc., is a semi-crystalline polymer with an eleven-carbon repeat unit belonging to the general class of Nylon polym...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه هنر اصفهان - دانشکده حفاظت، مرمت اشیاء و ابنیه تاریخی 1388

کاوش های باستان شناسی اخیر در محوطه های پیش از تاریخِ جیرفت با بسیاری آثار و یادمان ها فرصت مناسبی برای پژوهش و بررسی دوباره را در ناحیه جنوب شرق ایران بعد از 3 دهه فراهم نمود. از جمله مهم-ترین آثار این تمدن سنگ های نرم و کنده کاری شده هستند. که به واسطه نقوش نمادین شان توجه بسیاری از متخصصین را به خود جلب کرده اند. نامشخص بودن منابع، عدم شناخت ماهیت فیزیکی و شیمیایی ساختار آنها اساس این تحقیق ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید