Download presentation
Published byHaven McCulloch Modified over 9 years ago
1
Application Report Dr. Ya-Ching Yang phone: (02)86981212 #205
2
Experiments with New D2 PHASER
The measurements were made with the D2 Phaser diffractometer (θ-θ). Every samples were measured in the Bragg-Brentano geometry. The LynxEye fast linear detector was used for all measurements. The powder samples were prepared in a standard PMMA sample holder (cavity diameter 25 mm and 1 mm depth). The bulk samples were prepared in a standard PMMA sample holder (cavity diameter 40 mm and 5 mm depth). The few amount powder samples & thin film samples were prepared in a standard Si low background sample holder. PMMA sample holder Si Low Background Sample Holder
3
Configuration of the diffractometer
Bragg-Brentano Geometry Goniometer D2 PHASER Theta/Theta Measurement circle 300 mm Tube 300W Cu ceramic sealed tube Tube power 30 KV / 10 mA Primary optics 0.6° Fixed divergence slit 2.5° Soller Slits Air scatter screen Secondary optics Ni filter Detector LynxEye detector (5° opening)
4
The LynxEye fast linear detector
Silicon strip technology Active area 14.4mm x 16mm, 192 Si channels of 75m each Suitable for wavelengths ranging from Cu to Cr >98% efficiency for Cu radiation Energy resolution ~ 25% Max. Count rate, global: >108 cps Max. Count rate, local: >7x105 cps Dynamic range > 7 106cps Maintenance free Can withstand the primary beam Angular resolution comparable to a scintillation detector with 0.1mm receiving slit LynxEye TM detector
5
APPLICATION 1 Fluorescence Powder
6
Phase Identification in DIFFRAC.EVA
7
Quantitative Analysis in TOPAS
A phase quantification (based on the Rietveld method, see next slides) was performed using the TOPAS software. The final phase ratio (in wt%) is displayed on the picture.
8
APPLICATION 2 Lanthanide Powder
9
Sample 1110.raw – XRD patterns
The sample was measured from 20o(2θ) to 90°(2θ) with a step size of 0.02°(2θ) . The counting time was 0.5 sec per step.
10
Phase Identification in DIFFRAC.EVA
11
Quantitative Analysis in TOPAS
Blue: raw data Red: calculated curve
12
APPLICATION 3 Mg2Si Alloy
13
Quantitative Analysis in TOPAS
14
Quantitative Analysis in TOPAS
15
APPLICATION 4 Lithium Battery Material
16
Quantitative Analysis in TOPAS
17
Quantitative Analysis in TOPAS
18
Quantitative Analysis in TOPAS
19
APPLICATION 5 Silicon Ingot Powder
20
Sample Si3N4_1 A phase identification was performed with the Diffrac.EVA software in combination with the PDF4+ database. Obviously, the sample contains two allotropic (alpha and beta) forms of Si3N4.
21
Sample Si3N4_1 Adjusting the height of the sticks to the measured intensity, a semi-quantitative estimation of the phase is automatically performed (based on I/Icor coefficients). The sample contains about 88.8 wt% alpha-Si3N4 and 11.2 wt% beta-Si3N4.
22
Quantitative Analysis in TOPAS
A phase quantification (based on the Rietveld method, see next slides) was performed using the DiffracPlus TOPAS software. The final phase ratio (in wt%) is displayed on the picture. It is in very good agreement with semi-quantitative result.
23
Sample SiC A phase identification was performed with the Diffrac.EVA software in combination with the PDF4+ database. The sample contains two allotropic forms of SiC: 6h and 15R. Traces of quartz and silicon could also be detected.
24
Sample SiC Adjusting the height of the sticks to the measured intensity, a semi-quantitative estimation of the phase is automatically performed (based on I/Icor coefficients). The sample contains about 85 wt% SiC-6H, 14.3 wt% SiC-15R and traces of quartz and silicon.
25
Quantitative Analysis in TOPAS
A phase quantification (based on the Rietveld method, see next slides) was performed using the DiffracPlus TOPAS software. The final phase ratio (in wt%) is displayed on the picture. It is in good agreement with semi-quantitative result.
26
APPLICATION 6 Refractory Material
27
Quantitative Analysis in TOPAS
28
Quantitative Analysis in TOPAS
29
Quantitative Analysis in TOPAS
高溫時,Corundum相消失
30
APPLICATION 7 MLCC (Multilayer Ceramic Capacitor) Material
31
Quantitative Analysis in TOPAS
32
Quantitative Analysis in TOPAS
33
APPLICATION 8 Fuel Cell Material
34
Phase Identification in DIFFRAC.EVA
35
Quantitative Analysis in TOPAS
36
Quantitative Analysis in TOPAS
37
LMSR Structure
38
APPLICATION 9 ZnO Powder
39
Crystallite Calculation in TOPAS
Crystallite size determined by whole pattern with structure is ~110 Å
40
Crystallite Calculation in TOPAS
Crystallite size determined by single line profile fitting with FP is ~135 Å
41
APPLICATION 10 Bio Material
42
Phase Identification in DIFFRAC.EVA
Ca5(PO4)3(OH)-SG: P63/m (176) ,a= , c= Ca3(PO4)2, SG: R-3c (167) ,a= ,c=
43
TOPAS analysis Peak phase analysis with FPA function Great GOF and its Rwp down to 7.8%(<10%)
44
TOPAS analysis Amorphous phase contents around 45%
45
TOPAS Analysis Deconvolution of Ca5(PO4)3(OH) Phase CS:247.9nm
46
APPLICATION 11 Thin Film Application
47
Phase Identification in DIFFRAC.EVA
CIGS/Mo/Glass
48
Phase Identification in DIFFRAC.EVA
ITO/Glass
49
Samples Before Laser Annealing
GST/Glass
50
Samples After Laser Annealing
GST/Glass
51
Search/Match Results by DIFFRAC.EVA
GST/Glass
52
Comparison of Four Thin Film Diffractions GST/Polymer
Film thickness 50nm Measuring Condition: Sample 1.raw 2.raw 3.raw 4.raw Step size 0.1o 0.05o Exposure time 0.5 sec 1 sec 2 sec
Similar presentations
© 2024 SlidePlayer.com Inc.
All rights reserved.