scholarly journals Tribological properties of polyimide coating filled with carbon nanotube at elevated temperatures

2020 ◽  
Vol 41 (7) ◽  
pp. 2652-2661
Author(s):  
Amit Roy ◽  
Liwen Mu ◽  
Yijun Shi
Keyword(s):  
Carbon Nanotube ◽  
Tribological Properties ◽  
Elevated Temperatures ◽  
Polyimide Coating

A Study on Mechanical and Tribological Properties of Hot Pressed Al2O3/ZrO2/h-BN/TiO2 Composites

2011 ◽  
Vol 695 ◽  
pp. 417-420 ◽  
Author(s):  
Hyun Hwi Lee ◽  
Seung Ho Kim ◽  
Bhupendra Joshi ◽  
Soo Wohn Lee
Keyword(s):  
Tribological Properties ◽  
Ceramic Composite ◽  
Elevated Temperatures ◽  
Cutting Tools ◽  
High Hardness ◽  
High Melting Point ◽  
Corrosion Resistant ◽  
Mechanical And Tribological Properties ◽  
Chemical Inertness ◽  
Corrosion Resistant Coatings

Oxide ceramics such as alumina and zirconia are industrially utilized as cutting tools, a variety of bearings, biomaterials, and thermal and corrosion-resistant coatings due to their high hardness, chemical inertness, high melting point, and ability to retain mechanical strength at elevated temperatures. In this research, the effect of other ceramic additives (TiO2) and h-BN within alumina(α-Al2O3) and yttria-stabilized tetragonal (Y-TZP) composite was studied with respect to the mechanical and tribological properties. The lowest coefficient of frction of 0.45 was observed for the ZTA ceramic composite with hBN-TiO2. The highest hardness, fracture toughness and flexural strength were obtained as 15.7GPa, 5.2MPam-1/2, 712MPa, respectively.

Unique synergistic effects of graphene oxide and carbon nanotube hybrids on the tribological properties of polyimide nanocomposites

2018 ◽  
Vol 117 ◽  
pp. 217-224 ◽  
Author(s):  
Chunying Min ◽  
Dengdeng Liu ◽  
Chen Shen ◽  
Qiaqia Zhang ◽  
Haojie Song ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Carbon Nanotube ◽  
Tribological Properties ◽  
Synergistic Effects

The influence of SrSO4 on the tribological properties of NiCr–Al2O3 cermet at elevated temperatures

2014 ◽  
Vol 40 (2) ◽  
pp. 2799-2807 ◽  
Author(s):  
Feng Liu ◽  
Gewen Yi ◽  
Wenzhen Wang ◽  
Yu Shan ◽  
Junhong Jia
Keyword(s):  
Tribological Properties ◽  
Elevated Temperatures

scholarly journals The Effect of Elemental Composition and Nanostructure of Multilayer Composite Coatings on Their Tribological Properties at Elevated Temperatures

2020 ◽  
Author(s):  
Alexey Vereschaka ◽  
Sergey Grigoriev ◽  
Vladimir Tabakov ◽  
Mars Migranov ◽  
Nikolay Sitnikov ◽  
...  
Keyword(s):  
Elemental Composition ◽  
Coefficient Of Friction ◽  
Tribological Properties ◽  
Elevated Temperatures ◽  
Composite Coatings ◽  
Multilayer Composite ◽  
The Coefficient Of Friction ◽  
The Relationship ◽  
Tribological Parameters ◽  
Adhesion Component

The chapter discusses the tribological properties of samples with multilayer composite nanostructured Ti-TiN-(Ti,Cr,Al,Si)N, Zr-ZrN-(Nb,Zr,Cr,Al)N, and Zr-ZrN-(Zr,Al,Si)N coatings, as well as Ti-TiN-(Ti,Al,Cr)N, with different values of the nanolayer period λ. The relationship between tribological parameters, a temperature varying within a range of 20–1000°C, and λ was investigated. The studies have found that the adhesion component of the coefficient of friction (COF) varies nonlinearly with a pronounced extremum depending on temperature. The value of λ has a noticeable influence on the tribological properties of the coatings, and the nature of the mentioned influence depends on temperature. The tests found that for the coatings with all studied values of λ, an increase in temperature first caused an increase and then a decrease in COF.

The tribological properties of Ti3SiC2/Cu/Al/SiC composite at elevated temperatures

2016 ◽  
Vol 104 ◽  
pp. 294-302 ◽  
Author(s):  
Wentao Dang ◽  
Shufang Ren ◽  
Jiansong Zhou ◽  
Youjun Yu ◽  
Lingqian Wang
Keyword(s):  
Tribological Properties ◽  
Elevated Temperatures

Tribological Properties of Hot-Pressed SrSO4 Ceramic at Elevated Temperatures in Dry Sliding Against Alumina Ball

2019 ◽  
Vol 141 (5) ◽  
Author(s):  
Chong-Chong Mao ◽  
Yu-Feng Li
Keyword(s):  
Tribological Properties ◽  
Room Temperature ◽  
Elevated Temperatures ◽  
Testing Temperature ◽  
Dry Sliding ◽  
Potential Candidate ◽  
Friction Behavior ◽  
Wear Rates ◽  
Brittle To Ductile Transition ◽  
Lubricating Film

SrSO4 ceramic was prepared by hot-pressed sintering and its friction behavior was investigated against the Al2O3 ball under the dry sliding condition from room temperature to 800 °C. From room temperature to 400 °C, the tribological properties of SrSO4 ceramic are quite poor with the friction coefficients of 0.65–0.83 and the wear rates of about 10−3 mm3/Nm. With the testing temperature increasing to 600 °C and 800 °C, a brittle to ductile transition of SrSO4 takes place because of the activated slip systems. The friction coefficient and wear rate of SrSO4 ceramic also obviously decrease to 0.37 and about 10−4 mm3/Nm at 800 °C. The significant improvement of the tribological properties is ascribed to the formation of a smooth and continuous SrSO4 lubricating film with excellent ductility and low shear strength at elevated temperature. SrSO4 is considered to be a potential candidate for high-temperature solid lubricant with excellent lubricity.

Thermophysical properties of multi-wall carbon nanotube bundles at elevated temperatures up to 830K

Carbon ◽  
2011 ◽  
Vol 49 (5) ◽  
pp. 1680-1691 ◽  
Author(s):  
Xiaopeng Huang ◽  
Jianmei Wang ◽  
Gyula Eres ◽  
Xinwei Wang
Keyword(s):  
Carbon Nanotube ◽  
Thermophysical Properties ◽  
Elevated Temperatures ◽  
Nanotube Bundles ◽  
Multi Wall Carbon Nanotube
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