scholarly journals Multilayer Graphene (MLG)-Reinforced Al2O3 Nanocomposites Fabricated by High-frequency Induction-heat Sintering Technology

2015 ◽  
Vol 3 (4) ◽  
pp. 98-105 ◽  
Author(s):  
I. Ahmad
Keyword(s):  
High Frequency ◽  
Multilayer Graphene ◽  
Induction Heat ◽  
High Frequency Induction

Tribological Investigation of Multilayer Graphene Reinforced Alumina Ceramic Nanocomposites

2018 ◽  
Vol 141 (2) ◽  
Author(s):  
Iftikhar Ahmad ◽  
Saqib Anwar ◽  
Fang Xu ◽  
Yanqiu Zhu
Keyword(s):  
Mechanical Properties ◽  
High Frequency ◽  
Wear Test ◽  
Tribological Performance ◽  
Multilayer Graphene ◽  
Induction Heat ◽  
Test Configuration ◽  
High Frequency Induction ◽  
Ceramic Nanocomposites

We investigated the wear resistance properties of high-frequency induction heat (HFIH) sintered alumina (Al2O3) ceramic nanocomposites containing various multilayer graphene (MLG) concentrations. The tribology of the monolithic Al2O3 and nanocomposites samples was assessed against spherical ceramic (Si3N4) counter sliding partner at sliding loads ranging from 6 to 40 N using ball-on-disk wear test configuration. Compared with the monolithic Al2O3, the incorporation of 1.0 vol % MLG reduced the friction coefficient by 25% and the wear rate by 65% in the MLG/Al2O3 nanocomposites tested under 40 N sliding load. Based on the mechanical properties, brittle index, and microstructure, the active wear mechanisms for the nanocomposites were analyzed. The MLG contributed in the nanocomposites tribology process, indirectly, by enhancing the mechanical properties and, directly, by reducing the friction between the counter sliding partners. The synergistic role of MLG thin triboflim and twirled MLG for improving the tribological performance of the nanocomposites is discussed.

Evaluation of Argon-Gas-Injected Solvothermal Synthesis of Hydroxyapatite Crystals Followed by High-Frequency Induction Heat Sintering

2020 ◽  
Vol 20 (5) ◽  
pp. 3182-3189 ◽  
Author(s):  
Hassan Nosrati ◽  
Rasoul Sarraf-Mamoory ◽  
Dang Quang Svend Le ◽  
Maria Canillas Perez ◽  
Cody Eric Bünger
Keyword(s):  
High Frequency ◽  
Solvothermal Synthesis ◽  
Induction Heat ◽  
Argon Gas ◽  
Hydroxyapatite Crystals ◽  
High Frequency Induction

scholarly journals Characterization of hydroxyapatite-reduced graphene oxide nanocomposites consolidated via high frequency induction heat sintering method

2020 ◽  
Vol 8 (4) ◽  
pp. 1296-1309
Author(s):  
Hassan Nosrati ◽  
Rasoul Sarraf-Mamoory ◽  
Mohammad Hossein Kazemi ◽  
Maria Canillas Perez ◽  
Mahdieh Shokrollahi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Frequency ◽  
Induction Heat ◽  
Reduced Graphene ◽  
Sintering Method ◽  
High Frequency Induction

Numerical investigation of the temperature field of a metal plate during high-frequency induction heat forming

2008 ◽  
Vol 223 (4) ◽  
pp. 979-986 ◽  
Author(s):  
F Liu ◽  
Y Shi ◽  
X Lei
Keyword(s):  
Temperature Field ◽  
Temperature Distribution ◽  
High Frequency ◽  
Three Dimensional ◽  
Metal Plate ◽  
Dimensionless Temperature ◽  
Induction Heat ◽  
External Forces ◽  
Different Thickness ◽  
High Frequency Induction

High-frequency induction heat forming is a flexible metal plate forming technique using non-uniform thermal stress to shape a metal plate without tools and external forces. To accurately control the deformation of a metal plate, the study of temperature field is critical. In this article, a three-dimensional finite simulation has been carried out accounting for temperature-dependent thermal properties, and the numerical simulation results are experimentally validated. The effects of the process parameters on the temperature distribution are analysed. Through defining a dimensionless temperature T* and a special Y-coordinate Y*, similarity of temperature field with the different thickness is studied. The numerical results show that the temperature distributions in the Y′ direction are similar in the different thickness, which is helpful for the establishment of an analytical model of temperature distribution and analysis of the strain field of the different thickness in the next work.

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