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  3. Effect Of Γ-irradiation On Hexagonal Boron Nitride Membranes And Printed Films.
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  3. Effect Of Γ-irradiation On Hexagonal Boron Nitride Membranes And Printed Films.

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Effect of γ-irradiation on hexagonal boron nitride membranes and printed films.

Jingjing Wang1, Towseef I Ahmad1, William Lee2

  • 1Department of Chemistry, University of Manchester, Manchester, M139PL, UK. cinzia.casiraghi@manchester.ac.uk.

Nanoscale
|July 2, 2025

View abstract on PubMed

Summary
This summary is machine-generated.

Hexagonal boron nitride (hBN) films show excellent radiation tolerance to gamma rays up to 1500 kGy. These 2D materials maintain structural integrity, making them ideal for protective coatings in harsh nuclear and aerospace environments.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Radiation Physics

Background:

  • Two-dimensional (2D) materials produced by liquid phase exfoliation (LPE) offer scalable solutions for protective films and barrier coatings.
  • Hexagonal boron nitride (hBN) is a 2D material with high thermal and chemical stability, suitable for demanding applications.
  • Coatings in nuclear and aerospace sectors require long-term stability under radiation, elevated temperatures, and reactive chemical species.

Purpose of the Study:

  • To investigate the radiation tolerance of inkjet-printed and vacuum-filtered hexagonal boron nitride (hBN) films and membranes.
  • To assess the structural stability of hBN under prolonged gamma-ray irradiation and environmental exposure.

Main Methods:

  • Fabrication of hBN films via inkjet printing and membranes via vacuum filtration.
  • Irradiation of hBN samples with gamma rays up to a total absorbed dose of 1500 kGy.
  • Analysis of structural integrity using Raman spectroscopy and X-ray photoelectron spectroscopy (XPS).

Main Results:

  • No significant structural differences were observed in hBN samples up to 1500 kGy absorbed dose.
  • hBN films and membranes exhibited excellent radiation tolerance under tested conditions.
  • Irradiated hBN samples showed no structural changes after two months of air exposure.

Conclusions:

  • Inkjet-printed and vacuum-filtered hBN films demonstrate exceptional radiation tolerance and environmental stability.
  • These hBN materials are promising for protective coatings and insulating layers in nuclear and aerospace applications.
  • The long-term stability of hBN to gamma rays is crucial for advanced technologies in these sectors.