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...

The lifetimes and the premature wear of machining tools impact on manufacturing efficiencies and productivities. A significant proportion of machining tool damage can be attributed to component wear. Here, titanium aluminium nitride (TiAlN) multi-layered with titanium diboride (TiB2) prepared by PVD (Physical Vapour Deposition) sputtering onto H-13 substrates are studied as potential wear-resis...

Regarding titanium matrix composites (TMCs), their properties strongly depend on the reinforcement material employed for manufacturing; this may lead to a multitude of investigations TMCs. Considering diverse typology reinforcement, six types ceramic particles were tested in investigation: B4C, SiB6, TiB2, TiC, TiN, and BN. In order compare behaviour own influence TMCs, same ratio was starting ...