Related Experiment Video
Updated: Feb 3, 2026

TiO2-coated Hollow Glass Microspheres with Superhydrophobic and High IR-reflective Properties Synthesized by a Soft-chemistry Method
Published on: April 26, 2017
Lifetime Stability and Microstructure Properties of Cr/B₄C X-ray Reflective Multilayer Coatings
Catherine Burcklen1, Regina Soufli1, Jennifer Rebellato2
1Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA.
Abstract:
This paper demonstrates that highly reflective Cr/B₄C multilayer interference coatings with nanometric layer thicknesses, designed to operate in the soft X-ray photon energy range, have stable reflective performance for a period of 3 years after deposition. The microstructure and chemical composition of layers and interfaces within Cr/B₄C multilayers is also examined, with emphasis on the B₄C-on-Cr interface where a significant diffusion layer is formed and on the oxide in the top B₄C layer. Multiple characterization techniques (X-ray reflectivity at different photon energies, X-ray photoelectron spectroscopy, transmission electron microscopy, electron diffraction and X-ray diffraction) are employed and the results reveal a consistent picture of the Cr/B₄C layer structure.
Related Concept Videos
Reflective Property of Parabolas
X-ray Crystallography
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
Nuclear Stability
To hold positively charged protons together...
RNA Stability
Reflection of Waves
The Sense of Self: Reflected Self-Appraisal and Social Comparison

