X-ray Diffraction (XRD)

X-ray Diffraction
High-resolution XRD reciprocal space map of Silicon at 200 °C

X-ray Diffraction (XRD) is a nondestructive analytical technique which can be used to measure both physical and chemical properties of crystalline powders, thin films, epitaxial films, and bulk solid materials.

At Covalent, we use the newest in XRD technology, utilizing a high-brilliance Rotating Anode Cu source, Hypix-3000 Hybrid Pixel Array detector, and a variety of high-resolution optics.

  • Nondestructive
  • Sensitivity to crystallographic structure
  • Quantitatively measures crystalline phase and texture orientation
  • Minimal sample preparation required
  • XRD without a pair distribution function has limited capabilities when applied to amorphous materials
  • Elemental composition of the samples should be known in advance
Base Prices
Technique Variants
Pricing Starts At
X-ray Diffraction (XRD)
$380 / Sample
XRD: Crystallinity, Crystallite Size, AND Texture Analysis (All 3)
$800 / Sample
XRD: Crystallinity, Crystallite Size, OR Texture Analysis (Choose 1)
$380 / Sample
XRD: Crystallinity, Crystallite Size, OR Texture Analysis (Choose 2)
$600 / Sample
XRD: Offcut
$400 / Sample
XRD: Pole Figures Analysis
$400 / Sample
XRD: Confirmation of Phase ID
$380 / Sample
XRD: Qualitative Phase ID
$600 / Sample
XRD: Quantitative Phase ID
$800 / Sample
XRD: Residual Stress Analysis
$380 / Sample
XRD: Residual Stress Analysis + Rocking Curves
$600 / Sample
XRD: Rocking Curves + Composition + Thickness
$700 / Sample
XRD: Rocking Curves + Quality
$500 / Sample
XRD: GI-XRD, Grazing Incidence Scan with Phi Oscillation
$700 / Sample
Example Outputs

High-resolution XRD reciprocal space map of Silicon at 200C

Pole figure measurement for a Cubic-331 sample

XRD pattern used for quantitative crystalline phase ID measurement of Zinc Oxide / Corundum powder mixture

Instruments Used for XRD
Rigaku SmartLab

Rigaku SmartLab

  • HyPix-3000 X-ray Detector
  • Rotating Anode X-ray Source
  • X-ray Source Tube Voltage: 20 to 40 kV
  • X-ray Source Tube Current: 10 to 20 mA
  • Triaxial Sample Stage
  • Biaxial Goniometer Head

View Instrument Brochure

Sample Requirements
  • Powder, film, or crystalline bulk solids
  • Flat surface required for analysis
  • Maximum Sample Thickness: 20 mm
How XRD Works

X-ray diffraction results when an monochromatic, collimated X-Ray beam strikes a crystalline sample and the lattice spacings between atomic planes produce constructive interference with the incident beam at specified angles, in accordance with Bragg’s Law.

The XRD system scans over a range of diffraction angles, yielding diffraction peaks that can be correlated to distinct families of atomic planes in crystalline specimens. By analyzing the XRD peak pattern, one can: identify and quantify crystalline phases, calculate residual stress (macrostrain) in the material from measured lattice parameters, characterize the crystallite size and microstrain from peak broadening effects, and map the measured lattice parameters in reciprocal space to analyze pseudo-morphic growth of epitaxial films.

Additionally, advanced modeling can be performed from high-resolution XRD data to obtain layer composition and thickness information for epitaxial films, and rocking-curves procedures can be used to show the quality of the films.

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