The aim of this work is to apply the Gamma Ray Transmission (GRT), a non destructive technique, for structural characterization of ceramic samples. With this technique, the porosity of Alumina (Al2O3) and Boron Carbide (B4C) ceramic samples, in tablet format, was determined. The equipment employed is constituted by a 241 Am gamma ray source (59.6 keV and 100mCi), a 2”x2” diameter NaI (Tl) scint...

The densification behavior and mechanical properties of B4C hot-pressed at 2000°C for 1 h with additions of Al2O3 up to 10 vol% were investigated. Sinterability was greatly improved by the addition of a small amount of Al2O3. The improvement was attributed to the enhanced mobility of elements through the Al2O3 near the melting temperature or a reaction product formed at the grain boundaries. As...

A single point cutting tool is modeled out of two different materials having desired thermoelectric properties. The material used B4C doped with compositions Titanium Carbide. In the present work, three on both sides made by tungsten carbide. range composition boron carbide (B4C) was selected randomly 0-12.5%, 0-25.4% and 12.5 – 25.4% first half second respectively. simulation process done in A...

Selective laser melting (SLM) of aluminium alloys is research interest to produce customized or complex-shaped metal components for functional structural applications. In order palliate the undesirable residual stress developed in SLM process, traditional post-annealing heat treatment has been widely used lower selective melted (SLMed) Al alloys. However, method usually leads a decrease strengt...