Download PDF by William Lau (Ed.): Advanced Structural and Functional Materials for Protection

By William Lau (Ed.)

ISBN-10: 3908451507

ISBN-13: 9783908451501

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Both washing and heat treatment at 1700 °C was tried. Figure 9 shows the XRD results and compared with as sprayed powder. Most boron oxide can be removed by heat treatment and washing in water can partially remove the boron oxide. Boron Carbide C3 ● B4C B2O3 Boron Carbide C2 Intensity Boron Carbide C1 Boron Carbide raw powder ● ● ● 20 ● ● ● 30 ● ● ● 40 50 60 ● ● 70 80 2 Theta degree Figure 1 XRD results of boron carbide raw powder and RF plasma sprayed at 21kW collected from Chamber 1 to 3. 27 28 Advanced Structural and Functional Materials for Protection ● B4C C3 B2O3 20 30 40 50 60 70 80 Intensity C2 20 30 ● ● 40 50 60 70 80 C1 ● ● ● 20 ● 30 ● ● ● 40 50 60 ● ● 70 80 2 Theta (degree) Figure 2 XRD results of boron carbide RF plasma sprayed at 16kW collected from Chamber 1 to 3.

Refs. [4-12]). These works suggest the possibility of new, extremely lightweight low volume carbon nanotube-reinforced polymers with a much higher strength and stiffness as compared to those of traditional carbon-fiber composites. Among the types of polymer being studied to be reinforced with CNT is the ultrahigh molecular weight polyethylene (UHMWPE) fibers, which was studied by Ruan et al. [13]. The UHMWPE fibers have found many applications, such as ballistic-resistant garments and nautical sea ropes.

2, the Normalized E11 varies linearly with the CNT volume fraction vf. 95. This suggests that the effect of the CNT volume fraction on E22 is dependent on the type of polymer matrix. 0 f Figure 2. Normalized Young’s modulus of carbon nanotube (CNT) reinforced ultra-high molecular weight polyethylene (UHMWPE) as function of CNT volume fraction. 0 f Figure 3. Normalized Young’s modulus of carbon nanotube (CNT) reinforced polymer (Epon 862) as function of CNT volume fraction. Conclusions The effective Young’s moduli of the carbon nanotube (CNT) reinforced polymers have beenobtained using the Mori–Tanaka method.

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Advanced Structural and Functional Materials for Protection by William Lau (Ed.)


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