This work investigates the joining between graphite and stainless steel grade (410), by using active filler metal paste. Brazing technique was chosen because it is efficient, verstile, fast and economical.High purity of metal powder of silver, copper and titanium in different concentrations were mixed carefully to prepare a filler paste.
In this work, a DC planner magnetron sputtering system used. Which consists of a cylindrical chamber, made from (Borosilicate). It contains two circular electrodes made from stainless steel. The cathode electrode is carried the target material and permanent magnet while a glass sample, which must coat, is placed on the anode electrode. In this works, gold and silver used as a target materials.
The interacting boson model (IBM) has been used to make a schematic study of (172-180Hf and 180-190W) isotopes. For each isotope of Hafnium and Tungsten determined the values of the parameters in the Hamiltonian of IBM-1 and IBM-2, which satisfied the best fit to the experimental data for energy levels. Beside on these values, can extrapolate to isotopes are extrapolated for which no experimental data founded and can make predictions for future experiments.
