Phase identification
Identify sample phases from diffraction patterns
Watch data import, pattern analysis and phase results to see how scientific analysis connects with AI guidance.
View the result image from the presentation ↗← Application cases Results consistent with established international software.
Nanjing University of Science and Technology · Analysis and Testing Center
Results consistent with established international software.
Now used in undergraduate XRD teaching.
The NJUST Analysis and Testing Center compares iPowder with Bruker EVA, TOPAS and LEPTOS using identical raw data. The demonstrated cases show consistent results. Simpler workflows and AI guidance lower the barrier for undergraduate users, and the center has begun using iPowder in teaching.
01 / Scientific feature comparison
Four analysis tasks
in one analysis platform.
The center compares phase identification, quantitative analysis, microstrain and stress. Different Bruker packages handle these tasks, while iPowder organizes the corresponding methods and automated workflows in one workspace.
| Analysis task | Bruker software | iPowder capability |
|---|---|---|
| Phase identification | Bruker EVA | Search and identify phases; associate patterns with candidates |
| Quantitative analysis | Bruker TOPAS | Multiphase quantification through whole-pattern refinement |
| Microstrain analysis | Bruker TOPAS | Connect peak-profile and microstructure analysis to obtain relevant parameters |
| Macroscopic residual stress | Bruker LEPTOS | Organize stress calculation, parameter confirmation and result output |
Tasks across instrument software packages
EVAPhase identification
TOPASQuantification / Microstrain
LEPTOSStress analysis
iPowder unified workspace
Scientific algorithms + Automation + AI guidance
Import data → Select task → Compute → Check and export results
Phases Quantification Microstrain Stress
The comparison covers the four demonstrated tasks. Calculations depend on the models, parameters and data conditions used.
Hands-on demonstrations / Materials supplied by the center
Four analysis tasks
Watch the actual operations.
Watch the center’s videos covering phase identification, quantification, microstructure and macroscopic residual stress. Play any recording and use full screen to inspect details.
Quantitative analysis calculation
From whole-pattern fitting to phase fractions
Watch multiphase quantification and examine phase fractions alongside the fitted pattern and result table.
View the result image from the presentation ↗Microstructure calculation
From profile information to microstructure parameters
Watch microstructure analysis to understand how peak broadening, size and strain enter the workflow.
View the result image from the presentation ↗Macroscopic residual stress calculation
From multiple diffraction datasets to stress
Watch the stress workflow, using guided operations, peak positions and calculated results to understand each step.
View the result image from the presentation ↗Videos are supplied by the center. Covers use corresponding images from its presentation, not extracted video frames. Sample results and parameters apply only to the illustrated cases.
02 / Result reliability
Use identical raw data
for parallel analysis and comparison.
The center uses identical raw data in iPowder and the instrument software to evaluate agreement. Its report states that results in the demonstrated cases are consistent with those from the imported software.
Scientific results compared
Evaluate phases, quantification, microstrain and stress through comparisons with established software.
An evidence-based workflow
AI organizes preprocessing, peak finding, identification and refinement; scientific tools compute the numerical results.
Deployed at the center
iPowder is installed in the center’s laboratory and runs on the NJUST shared instrumentation platform.
03 / Undergraduate teaching
Now used in undergraduate teaching From scientific evaluation to the classroom:
From scientific evaluation to the classroom:
recognition of accuracy and usability.
The NJUST Analysis and Testing Center has begun using iPowder for undergraduate teaching. Simplified workflows, AI assistance and natural-language guidance make scientific XRD tools easier to use while retaining inspectable computations.
Help students perform real analysis and understand the process.Accuracy comes first
Teaching is supported by scientific evaluation and comparison with established instrument software.
An easier start
Automation and natural-language guidance help students understand parameters, steps and analysis goals.
Results that support discussion
Connect patterns, calculations and reports for classroom discussion, result checks and method learning.
800+Students in the center’s XRD course per academic year
8 students / group Class organization described in the report
15 minutes Classroom analysis time allocated per group
These figures describe the center’s teaching context, not iPowder download counts or measured analysis speed. Undergraduate teaching has begun.
Resources / Analysis & Teaching practice
After watching the demonstration,
analyze the accompanying data.
The center’s practice archive contains XRD data and analysis project files. Choose suitable data and models for your task, then practice and compare results.
DATA_XRD · Practice data
Download practice data ZIP · 3.69 MBRaw data and analysis files
253 files covering profile fitting, Rietveld refinement, size–strain analysis, quantitative analysis and crystallinity. Formats include RAW, XY, CIF, INP and STR. Some are project or result files for other software; use them with compatible tools.
Watch first
Choose a task to understand the data input, analysis process and result presentation.
Select suitable data
Extract the archive and choose by folder and format. Not every video corresponds directly to files in the archive.
Analyze and review
Review patterns and results against the sample, measurement conditions and model. Do not transfer case parameters directly to other samples.
Scientifically evaluated analysis.
Usability brought into undergraduate teaching.
Feature comparisons, agreement checks and teaching adoption together illustrate the value of this application case.
Source: practical application and evaluation materials supplied by the NJUST Analysis and Testing Center, together with teaching adoption information.