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Chemical Analysis
Each
analysis is fortified by an understanding of how the material's
chemistry, microstructure and mechanical properties interact.
Stringently controlled procedures ensure the reliability of results and
absolute traceability to National Institute of Standards and Technology
Standard Reference Materials.
Thoroughness and
Integrity in Chemical Analysis
This
laboratory built its reputation for excellence by preparing and
analyzing the most challenging materials, including superalloys and ceramics. Unlike
many other laboratories, Dirats never settles for reporting raw data.
Instruments are calibrated with matrix-matched reference standards to
account for microstructure, matrix interaction and interelemental effects in
aerospace alloy systems. For this reason, many producers of standard
reference materials use results from this laboratory for validation of
their own standards.
Physical Testing
Dirats
Laboratories performs tests for conductivity, magnetic permeability and
electrical resistivity. X-ray diffraction is widely employed for phase
characterization of powders used in thermal or wear barrier
applications. Differential thermal analysis is also used to establish
phase transformation temperatures.
A robotic specimen changer and theta-theta geometry with parallel-beam
optics improve testing speed, resolution and accuracy. Particle size
characterization by laser light scattering also plays an integral role
in powder production process control.
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Chemical
Analysis Using:
· X-ray fluorescence
· Inductively coupled plasma
emission spectroscopy
· Inductively coupled plasma
mass spectroscopy
· Graphite furnace atomic
absorption spectroscopy
· Inert gas fusion hydrogen
analysis
· Nitrogen, oxygen analysis
· Combustive carbon/sulfur
analysis
Instruments
· ARL 9800+ Multichannel XRF
Quantometer
· Kevex
0700 Energy Dispersive XRF Analyzer
· Perkin Elmer Optima 3300DV
ICP Emission Spectrometer
· Perkin Elmer Sciex Elan
6100 DRC ICP Mass Spectrometer
· Perkin Elmer AA600 Spectrometer
· Leco
RH600 Hydrogen Analyzer
· Leco
TC600 Nitrogen/Oxygen Analyzer
· Leco
CS600 Carbon/Sulfur Analyzer
· Fisher Accumet Ion Analyzer
· Metorex X-MET3000T Alloy
System
Physical
Testing Using:
· X-ray diffraction for
quantitative phase determination of metals and ceramics
· Sieve and laser light
scattering for powder particle size determination
· Differential thermal
analysis for phase solvus
and transus point
determination
Instruments
· Brucker
D8 X-ray Diffractometer
· Honeywell Microtrac SRA 150 Particle Size
Analyzer
· TA Instruments DSC2910
Thermal Analyzer
· Karl Fisher 391 Titrimeter
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