The physical, mechanical, and thermal properties of polycrystalline TiB2 are examined with an emphasis on the significant dependence of the properties on the density and grain size of the material specimens. Using trend analysis, property relations, and interpolation methods, a coherent set of trend values for the properties of polycrystalline TiB2 is determined for a mass fraction of TiB2 ⩾ 98...

The present work reports the electrochemical machining (ECM) of the aluminium-silicon alloy/boron carbide (Al-Si /B4C) composites, fabricated by stir casting process with different weight % of B4C particles. The influence of four machining parameters including applied voltage, electrode feed rate, electrolyte concentration and percentage of reinforcement on the responses surface roughness (SR) ...

We report the results of a thermal wave study on SiC/B4C composites of different B4C compositions. Thermal wave, generated subsequent to sample absorption of pulse laser, was observed by means of a wide-band infrared detector. The information content of the thermal wave is then analysed by using a least-squares method. Temperature decay time, as measured from thermal wave decay curve, varies wi...

Control rods are used in nuclear reactors to control fission the core. Different reactor designs must use different rod materials because of neutrons that can be found at various energies. These materials, which made chemical compounds such as B4C, ZrB2, TiB2 or HfB2 absorb neutrons, have absorption properties for In this study, Akkuyu Nuclear Reactors were investigated. It has been taken into ...

Due to the large thermal neutron absorption cross section of 10B, B4C-Al composites have been used as neutron absorbing materials in nuclear industries, which can offer not only good neutron shielding performance but also excellent mechanical properties. The distribution of B4C particles affects the mechanical performance and efficiency of the thermal neutron absorption of the composite materia...

Using resonance ultrasound spectroscopy, we measured the monocrystal elastic-stiffness coefficients, the Voigt C ij, of TiB2. With hexagonal symmetry, TiB2 exhibits five independent C ij: C 11, C 33, C 44, C 12, C 13. Using Voigt-Reuss-Hill averaging, we converted these monocrystal values to quasiisotropic (polycrystal) elastic stiffnesses. Briefly, we comment on effects of voids. From the C ij...