Qualitative Phase Analysis Using an X-Ray Powder Diffractometer

1981 ◽  
pp. 91-97 ◽  
Author(s):  
W. N. Schreiner ◽  
C. Surdukowski ◽  
R. Jenkins
2004 ◽  
Vol 19 (4) ◽  
pp. 340-346
Author(s):  
YuanYuan Qiao ◽  
YunFei Xi ◽  
DongTao Zhuo ◽  
Ji Jun Wang ◽  
ShaoFan Lin

A qualitative phase identification system for crystalline mixtures is presented. The system provides up to five-phase qualitative identification using up to nine-peak filtration, and additive full peak matching based on the powder diffraction file of ICDD. It was implemented using Microsoft Visual C++, and runs under most common Windows systems. Screenshots and examples are included.


1980 ◽  
Vol 24 ◽  
pp. 91-97
Author(s):  
W. N. Schreiner ◽  
C. Surdukowski ◽  
R. Jenkins

During the past three years we have undertaken the development of a complete X-Ray Powder Diffraction, facility with the goal of fully integrating experimental and analytical procedures. Such an approach potentially offers substantially improved performance over previously existing systems by virtue of its internal self-consistency and it opens the possibility of significantly extending analytic procedures for both qualitative and quantitative analyses. Our work to date has resulted in improved performance and significant extensions in both areas, and today I will report on those advances in the area of qualitative analysis.


2007 ◽  
Vol 22 (4) ◽  
pp. 300-302 ◽  
Author(s):  
Liangqin Nong ◽  
Xiying Yang ◽  
Lingmin Zeng ◽  
Jingping Liu

X-ray powder diffraction technique and the Rietveld refinement method have been used successfully for the qualitative and quantitative analyses of Pingguo bauxite from Guangxi, China. Qualitative phase analysis shows that the Pingguo bauxite contains diaspore (AlOOH), hematite (Fe2O3), goethite (FeOOH), anatase (TiO2), and kaolinite (Al2(Si2O5)(OH)4). Quantitative Rietveld refinement shows that the weight concentrations of diaspore, goethite, hematite, anatase, and kaolinite for the Pingguo bauxite are 71.9(4)%, 7.0(8)%, 11.3(7)%, 6.5(6)%, and 3.3(9)%, respectively.


1992 ◽  
Vol 49 (9) ◽  
pp. 435-437
Author(s):  
E. M. Dyatlova ◽  
N. M. Bobkova ◽  
T. N. Yurkevich ◽  
E. M. Kurpan

2014 ◽  
Vol 881-883 ◽  
pp. 1241-1244
Author(s):  
Wei Jin Zeng ◽  
Chao Zeng ◽  
Wei He

The quantitative phase analyses of a slag have been successfully carried out by using both of the full-profile Rietveld and RIR methods from X-ray powder diffraction data. The qualitative phase analysis indicates that the slag contains mayenite (CaO)12(Al2O3)7, olivine Ca2(SiO4), gehlenite Ca2Al (AlSiO7), lemite Ca2(SiO4) and hibonite CaO(Al2O3)6. The quantitative analysis from Rietveld refinement shows that the weight concentrations of mayenite, olivine, gehlenite, lemite and hibonite for the slag are 48.8(4) wt.%, 32.2(5) wt.%, 11.0(9) wt.%, 6.2(1.1) wt.% and 1.8 (1.2) wt.%, respectively. The quantitative phase analysis results obtained by Rietveld method are more precise then those by RIR method.


2004 ◽  
Vol 19 (2) ◽  
pp. 145-148 ◽  
Author(s):  
Svend Erik Rasmussen ◽  
Sidsel Grundvig ◽  
Walter L. Friedrich

Ten fragments of bronze age frescoes from the Greek group of volcanic islands known as Santorini have been examined by powder X-ray diffraction. A qualitative phase analysis based on line positions only was supplemented by the Rietveld method which uses complete diffraction profiles to increase the credibility of the phase analysis.


2008 ◽  
Vol 79 (4) ◽  
pp. 043904 ◽  
Author(s):  
Cesare Borgia ◽  
Sven Olliges ◽  
Ralph Spolenak

1986 ◽  
Vol 1 (2) ◽  
pp. 28-32 ◽  
Author(s):  
V. Valvoda

AbstractA method is presented for correction of integrated X-ray intensities for preferred orientation of crystallites in a spinning specimen. It is based upon direct integration of the data obtainable from pole distribution of a single crystallographic plane. This pole distribution can be determined from measurements on a texture goniometer or, in special cases, from an ω-scan or from intensities of all reflections measured on a powder diffractometer only. The method was tested on four samples of magnesium and magnesium cadmium alloys and applied to hexagonal BN and α-Ti(N) surface layers. The method was developed with regard to application in phase analysis and thin film studies.


2007 ◽  
Vol 2007 (suppl_26) ◽  
pp. 531-536 ◽  
Author(s):  
J. Maixner ◽  
A. Kloužková ◽  
M. Mrázová ◽  
M. Kohoutková
Keyword(s):  

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