Mechanical and Tribological Properties of MgO/Multiwalled Carbon Nanotube-Reinforced Zirconia-Toughened Alumina Composites Developed through Spark Plasma Sintering and Microwave Sintering

2021 ◽  
Author(s):  
K. L. Meena ◽  
Ch. S. Vidyasagar ◽  
D. Benny Karunakar
Keyword(s):  
Carbon Nanotube ◽  
Spark Plasma Sintering ◽  
Tribological Properties ◽  
Microwave Sintering ◽  
Multiwalled Carbon ◽  
Mechanical And Tribological Properties ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Alumina Composites ◽  
Zirconia Toughened Alumina

Hard and tough carbon nanotube-reinforced zirconia-toughened alumina composites prepared by spark plasma sintering

Carbon ◽  
2012 ◽  
Vol 50 (2) ◽  
pp. 706-717 ◽  
Author(s):  
J. Echeberria ◽  
N. Rodríguez ◽  
J. Vleugels ◽  
K. Vanmeensel ◽  
A. Reyes-Rojas ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Alumina Composites ◽  
Zirconia Toughened Alumina

scholarly journals Characterization of Multiwalled Carbon Nanotube-Reinforced Hydroxyapatite Composites Consolidated by Spark Plasma Sintering

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Duk-Yeon Kim ◽  
Young-Hwan Han ◽  
Jun Hee Lee ◽  
Inn-Kyu Kang ◽  
Byung-Koog Jang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Relative Density ◽  
Spark Plasma Sintering ◽  
Sintering Temperature ◽  
Multiwalled Carbon Nanotube ◽  
Multiwalled Carbon ◽  
Pull Out ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Mwnt Content

Pure HA and 1, 3, 5, and 10 vol% multiwalled carbon nanotube- (MWNT-) reinforced hydroxyapatite (HA) were consolidated using a spark plasma sintering (SPS) technique. The relative density of pure HA increased with increasing sintering temperature, but that of the MWNT/HA composite reached almost full density at 900°C, and then decreased with further increases in sintering temperature. The relative density of the MWNT/HA composites increased with increasing MWNT content due to the excellent thermal conductivity of MWNTs. The grain size of MWNT/HA composites decreased with increasing MWNT content and increased with increasing sintering temperature. Pull-out toughening of the MWNTs of the MWNT/HA composites was observed in the fractured surface, which can be used to predict the improvement of the mechanical properties. On the other hand, the existence of undispersed or agglomerate MWNTs in the MWNT/HA composites accompanied large pores. The formation of large pores increased with increasing sintering temperature and MWNT content. The addition of MWNT in HA increased the hardness and fracture toughness by approximately 3~4 times, despite the presence of large pores produced by un-dispersed MWNTs. This provides strong evidence as to why the MWNTs are good candidates as reinforcements for strengthening the ceramic matrix. The MWNT/HA composites did not decompose during SPS sintering. The MWNT-reinforced HA composites were non-toxic and showed a good cell affinity and morphologyin vitrofor 1 day.

Carbon nanotube toughened hydroxyapatite by spark plasma sintering: Microstructural evolution and multiscale tribological properties

Carbon ◽  
2010 ◽  
Vol 48 (11) ◽  
pp. 3103-3120 ◽  
Author(s):  
Debrupa Lahiri ◽  
Virendra Singh ◽  
Anup K. Keshri ◽  
Sudipta Seal ◽  
Arvind Agarwal
Keyword(s):  
Carbon Nanotube ◽  
Spark Plasma Sintering ◽  
Microstructural Evolution ◽  
Tribological Properties ◽  
Plasma Sintering ◽  
Spark Plasma

Synthesis of Physically Functionalized Carbon Nanotube Reinforced Al-Si Nanocomposite by Spark Plasma Sintering

2014 ◽  
Vol 783-786 ◽  
pp. 1542-1547
Author(s):  
Anway Maiti ◽  
Ram S. Maurya ◽  
Tapas Laha
Keyword(s):  
Carbon Nanotube ◽  
Spark Plasma Sintering ◽  
High Energy ◽  
X Ray Diffraction ◽  
Multiwalled Carbon ◽  
Tem Analysis ◽  
Activity Effect ◽  
Plasma Sintering ◽  
Transmission Electron ◽  
Spark Plasma

Multiwalled carbon nanotube (MWCNT) reinforced Al-Si (11 wt%) alloy based nanocomposites were synthesized by spark plasma sintering using high energy ball milled nanocrystalline Al-Si powders mixed with physically functionalized MWCNTs. Improvement in MWCNT dispersion and associated improvement in densification of the nanocomposites were confirmed. The microhardness and elastic modulus of the nanocomposites measured by nanoindentation exhibited appreciable improvement. Grain size measurement by X ray diffraction and transmission electron microscopy confirmed achievement of nanocrystalline grains in Al-Si powder after ball milling, as well as in the consolidated nanocomposites. TEM analysis was performed to reveal the dislocation activity, effect of presence of primary Si and distribution of MWCNTs in the nanocomposites.

scholarly journals Tribological Properties of Steel/Tib2 Composites Prepared by Spark Plasma Sintering/ Własności Tribologiczne Kompozytów Stal/Tib2 Otrzymywanych Metodą Sps

2014 ◽  
Vol 59 (4) ◽  
pp. 1263-1268 ◽  
Author(s):  
I. Sulima
Keyword(s):  
Spark Plasma Sintering ◽  
Tribological Properties ◽  
Room Temperature ◽  
316L Stainless Steel ◽  
Wear Behaviour ◽  
Mechanical And Tribological Properties ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Worn Surface ◽  
Ball On Disc

Abstract mechanical and tribological properties of sintered 316L stainless steel composites with TiB2 submicroparticles were investigated. The composites were manufactured by Spark Plasma Sintering (SPS). The wear behaviour was studied by using a ball-on-disc wear tester at room temperature. The worn surface were analysed using Scanning Electron Microscopy (SEM). The results indicated that the friction coefficient and the wear resistance of composites with the same content of TiB2 particles depend on the sintering conditions.

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