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Effect of Boron Carbide Content on Properties of Thermoplastic Natural Rubber Composite as Thermal Neutron Shielding Nurazila MAT ZALI1,a, Hafizal YAZID1,b, Megat Harun Al Rashid MEGAT AHMAD1,c, Irman ABDUL RAHMAN 2,d and Yusof ABDULLAH1,e 1Malaysian Nuclear Agency, 43000 Kajang, Bangi Selangor, Malaysia 2Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi Selangor, Malaysia anurazila@nuclearmalaysia.gov.my, bhafizal@nuclearmalaysia.gov.my, cmegatharun@nuclearmalaysia.gov.my, dirman@ukm.my, eyusofabd@nuclearmalaysia.gov.my Keywords: Boron carbide (B4C), TPNR composites, Tensile strength, Attenuation, Thermal neutron shielding, Macroscopic cross section.
El-Fikri, S.U.
El-Kameesy, D.E.
El-Nashar, M.A.
El-Mansy, M.

Kužel, R.K.
Kužel, J.
Kužel, M.
Kužel.
Kužel, M.

[9] Akbar Maleki, Arman Haghighi, Mamdouh El Haj Assad, Ibrahim Mahariq, and Mohammad Alhuyi Nazari.
[10] Pablo Rico Gutiérrez et al.
Techno-economic comparison between photovoltaic systems with solar trackers and fixed structure in "el valle de sula", honduras.
[13] Adelmo Miranda, Hector Villatoro, Franklin Martinez, et al.
Revista de energía de Latinoamérica y el Caribe, 7(1), 2023.

In last two cases in the injection electroluminescence (IEL) spectra the peak at hνmax between 2.35 and 2.5 eV were observed, which is close to the peak of EL due to defects in 6H-SiC but, possibly, is due to free exciton annihilation in a quantum well in 3C-SiC at the 6H-SiC/3C-SiC heterointerface [4, 5].
The pn junction was formed by growth of p+ (Al)-layer (with doping (1-2)x10 19 cm-3).
An ohmic contact was applied to the p + -type region by deposition of Al and Ti and annealing at 1100 oC.
But the behavior of the IEL intensity of the green peak as a function of current (which is given by a power law dependence L ∼ I m where m>2 over broad range of the current, Fig.4b) and probable increasing of the IEL intensity of the green peak with heating the structure by the Joule heat allow to suggest the existence (together with defect EL in 6H-SiC) of EL band which can be considered to be due to the free exciton annihilation in 3C-SiC (curve a in Fig.3).
This band is close to the EL peak due to defects in 6H-SiC but also can be due to free exciton annihilation in a quantum well in 3C-SiC. 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 Photon energy, eV 0 0.2 0.4 0.6 0.8 1 IEL intensity, arb.un. 1) XII-18 2) XII-24 5) VI-6 9) XV-17 a) 3C-SiC a 1 9 5 21.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 Photon energy, eV 1E+000 1E+001 1E+002 1E+003 1E+004 1E+005 1 8 4 IEL intensity, arb.un. a 1E-003 1E-002 1E-001 Current, A 1E+001 1E+002 1E+003 1E+004 1E+005 1) peak (2.3-2.36) eV Fit 1: Power (m=2.6) 2) peak 2.914 eV Fit 2: Power (m=3.6) 1 2 IEL intensity, arb.un.

[3] HOU, HongmiaoYING, Liang WU, Xiufeng el.at .
[5] SUN Cai-na ,ZhANG Mei ,SHAO Gua-jie el at.
[6] JIANG Chao,SHAN Zhong-de,ZHUANG, Bai-liang el at.
[7] Du Lin-xiu, Yao Sheng-jie, Xiong Ming-xian el at.
[9] MIN J, LIN J, XIN L, et al.

Influence of Nano Particles in the Flexural Behavior of High-Strength Reinforced Concrete Beams Naglaa Glal-Eldin Fahmy1a,b, Rasha El-Mashery2a, Rabiee Ali Sadeek3c and L.M.
Abd El-Hafaz4a,c aCivil Engineering Department, Nahda University, Egypt bCivil Engineering Department, El-Minia High Institute of Engineering and Technology, Egypt cCivil Engineering Department, El-Minia University, Egypt 1naglaa.fahmy@nub.edu.eg, 2rasha.elmasry@nub.edu.eg, 3rabiee1960@yahoo.com, 4laila.shaddy@nub.edu.eg Corresponding Author: Naglaa Glal-Eldin Fahmy Keywords: High strength concrete, nanosilica, nanotitanium, mechanical properties, cracks, deflection, ductility.
Zaki et al. [17] studied the use of nano composites to develop the micro structure and the impermeability of high strength concrete and found that the use of nanosilica improved the impermeability of high strength concrete.
Zaki et al., "The use of nano-composites to develop the microstructure and impermeability of high performance concrete", The 19th International Conference on Composites Nano Engineering, Shanghai, China, 2011
[21] Ata El-kareim Shoeib and Anwar M.

[2] A.L.
Zorotto, and E.L.
[3] A.L.
Chian, E.L.

.% Al, 1 wt.% Zn, 0.2 wt.% Mn, balance Mg), for it is one of the most useful commercial Mg alloy.
Thickness before rolling (mm) Thickness after rolling (mm) Rolling reduction (%) T1 (K) T2 (K) T3 (K) EL (%) UTS (MPa) Raw 1.60 - 0 - - - 19.4 256.3 TER 1.60 1.12 30 355 453 441 16.9 313.4 WR 1.60 1.12 30 298 453 438 13.0 311.6 Note: T1 represents the surface temperature of the samples near the entrance of rollers.
Apparently, the EL of TER samples was higher than WR samples.
As a result, compared with the WR process, the TER process could ameliorate the loss of the EL and further improve the UTS of the samples.
Furthermore, based on the coupling of the thermal and athermal effects of electropulsing, TER process could produce a large flux of vacancies, activate and accelerate the dislocations climbing of the non-basal planes, and rearrange piling-up dislocations by annihilation, climb and cross-slip, which were controlled by self-diffusion, proposed by Xu et al. [7].

An experimental study of orthogonal cutting of SiCp/Al composites: Cutting forces analysis Shutao Huang a, Li Zhou b, Jinlei Wang c 1School of Mechanical Engineering, Shenyang Ligong University, Shenyang 110159, China asyithst@yahoo.com.cn, blizhou@imr.ac.cn, cjl_wang@126.com Keywords: SiCp/Al composites; Orthogonal cutting; Cutting force.
Machining of SiCp/Al composites has been considerably difficult because the extremely abrasive nature of SiC reinforcements causes rapid tool wear.
SiCp/Al composites, (a) microstructure, (b) workpiece morphology.
From the figures, it can be observed that the cutting force decreases by increasing cutting depth during machining of SiCp/Al composites.
El-Gallab, M.

Sandeep et al. [34] considered the radiated dusty nanofluid transport on a deformable plate.
This result is consistent with El-Aziz [8].
This result is also consistent with El-Aziz [8].
El Aziz, T.
El-Bary, M.