The gamma and neutron shielding properties of composite system formulated as (95-x) Al–5SiC–xTiC (x=0, 5,10, 15,20 wt%) were obtained. As main matrix material Aluminium 7075 (Al7075) is selected because of its higher thermal conductivity, low price, abrasion resistance, high shear power and high-temperature operation. Two different materials of silicon carbide (SiC) and titanium carbide (TiC) reinforced into Aluminium. Silicon carbide (SiC) contains silicon and carbon and it is mainly used as abrasive particles in grinding wheel because it has excessive thermal conductivity, excessive-temperature power, low thermal growth, and resistance to chemical response [54]. The Titanium carbide is an artificial, excessive-melting, heat-resistant cloth which is broadly used for production metal-running tools, defensive coatings and carbide steel. It is used in resistant packages, thin movie ultra capacitors, bearings, nozzles, reducing gear, and many others [54]. The TiC rate and its effect on the density of composite is shown in figure 1. The chemical compositions, and densities of the studied composites are listed in table 1.
Table 1. Chemical compositions (wt%), and densities of composite.
Samples code
|
Al (%)
|
SiC(%)
|
TiC(%)
|
Density (g.cm-3)
|
S-0
|
95
|
5
|
0
|
2.827
|
S-5
|
90
|
5
|
5
|
2.933
|
S-10
|
85
|
5
|
10
|
3.039
|
S-15
|
80
|
5
|
15
|
3.145
|
S-20
|
75
|
5
|
20
|
3.251
|
This paper is utilized by Phy-X/PSD code to test the usability of the composite system formulated as (95-x) Al–5SiC–xTiC (x=0, 5,10, 15,20 wt%) and finding appropriate alternative materials against radiation shielding.
Şakar et al. [55] developed Phy-X/PSD code to evaluate so many attenuation factors in a short time.
The linear attenuation coefficient (LAC) of the composite is calculated by the equation 1:
Where I0, I are un-attenuated, attenuated intensity, and x is the thickness of the composite sample.
Based on the LAC value, another attenuation parameters such as mean free path (mfp) , the Half Value Layer (HVL, cm) and the Tenth Value Layer (TVL, cm) are also obtained using equation 2,3,4 respectively [56-61].