The Characterization of Alumina Reinforced with CNT by the Mechanical Alloying Method

Carbon nano tube(CNT) possesses excellent electrical, mechanical and thermal properties. Therefore, it has been applied in a variety of fields. In this study, we added CNT in Al2O3 to improve the characteristics. The composite of CNT(1.5 wt%), Al2O3(∅=20nm), zirconia(90g) and ethanol(20ml) is deconcentrated with planetary ball mill for 1hr, 3hr, 5hr under 200rpm, 300rpm, respectively. The prepared powder was pressed under 14MPa uniaxialy after the composite was dried in the oven at 90°C, and then the powder is pressed again by Cold Isostatic Press(CIP) with 200MPa. Then reinforced alumina matrix composites with CNT was sintered by high temperature furnace at 1525 °C

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Effects of trace amount of nanometric SiC additives with wire or particle shapes on the mechanical and thermal properties of alumina matrix composites

Journal of Materials Science ◽

10.1007/s10853-013-7511-6 ◽

2013 ◽

Vol 48 (20) ◽

pp. 7022-7027 ◽

Cited By ~ 10

Author(s):

Noppasint Jiraborvornpongsa ◽

Masamitsu Imai ◽

Katsumi Yoshida ◽

Toyohiko Yano

Keyword(s):

Thermal Properties ◽

Trace Amount ◽

Mechanical And Thermal Properties ◽

Matrix Composites ◽

Alumina Matrix ◽

Particle Shapes

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Mechanical and thermal characterization of grafted PP-NCC nanocomposites

Journal of Thermoplastic Composite Materials ◽

10.1177/0892705719878226 ◽

2019 ◽

pp. 089270571987822

Author(s):

Saud Aldajah ◽

Mohammad Y Al-Haik ◽

Waseem Siddique ◽

Mohammad M Kabir ◽

Yousef Haik

Keyword(s):

Thermal Properties ◽

Interfacial Adhesion ◽

Thermal Characterization ◽

Mechanical And Thermal Properties ◽

Screw Extruder ◽

Scanning Calorimetry ◽

Three Point Bending ◽

Twin Screw ◽

Thermal Stability Of

This study reveals the enhancement of mechanical and thermal properties of maleic anhydride-grafted polypropylene (PP- g-MA) with the addition of nanocrystalline cellulose (NCC). A nanocomposite was manufactured by blending various percentages of PP, MA, and NCC nanoparticles by means of a twin-screw extruder. The influence of varying the percentages of NCC on the mechanical and thermal behavior of the nanocomposite was studied by performing three-point bending, nanoindentation, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and Fourier-transform infrared (FTIR) spectroscopy tests. The novelty of this study stems on the NCC nanoparticles and their ability to enhance the mechanical and thermal properties of PP. Three-point bending and nanoindentation tests revealed improvement in the mechanical properties in terms of strength, modulus, and hardness of the PP- g-MA nanocomposites as the addition of NCC increased. SEM showed homogeneity between the mixtures which proved the presence of interfacial adhesion between the PP- g-MA incorporated with NCC nanoparticles that was confirmed by the FTIR results. DSC and TGA measurements showed that the thermal stability of the nanocomposites was not compromised due to the addition of the coupling agent and reinforced nanoparticles.

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