Gamma Attenuation Behavior of h-BN and h-BN-TiB2 Composites


Buyuk B., Tugrul A. B. , Addemir A. O. , Ay N.

ACTA PHYSICA POLONICA A, cilt.125, ss.420-422, 2014 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 125 Konu: 2
  • Basım Tarihi: 2014
  • Doi Numarası: 10.12693/aphyspola.125.420
  • Dergi Adı: ACTA PHYSICA POLONICA A
  • Sayfa Sayıları: ss.420-422

Özet

Hexagonal boron nitride (h-BN) and hexagonal boron nitride-titanium diboride (h-BN-TiB2) composites are advanced materials for high-tech applications. They were investigated against gamma radioisotope sources Cs-137 and Co-60 which have gamma peaks 0.662 MeV for Cs-137, and 1.17 and 1.33 MeV for Co-60. Materials have been produced at 1800 C temperature in argon atmosphere without pressure during 2 h time. Linear and mass attenuation coefficients were calculated for the materials. Gamma transmission technique was used in the experiments. The experimental investigated mass attenuation coefficients of the materials for Cs-137 and Co-60 gamma radioisotope sources were compared with XCOM computer code. For h-BN-TiB2 composites the ratio of TiB2 in the composites is 55% by weight. So gamma attenuation effects of adding TiB2 to h-BN were discussed. It could be said that adding TiB2 to h-BN increases the linear gamma attenuation of the samples.