Polyimide Matrix Composites: Candidates for High Speed Commercial Aircraft or not?

1991 ◽  
Vol 3 (2) ◽  
pp. 73-87 ◽  
Author(s):  
Doug Wilson
Keyword(s):  
High Speed ◽  
Matrix Composites ◽  
Commercial Aircraft ◽  
Polyimide Matrix

The tribological properties of carbon fiber reinforced polyimide matrix composites under distilled water condition

2016 ◽  
Vol 68 (2) ◽  
pp. 212-219 ◽  
Author(s):  
Juan Wu ◽  
Ziming Kou ◽  
Gongjun Cui
Keyword(s):  
Carbon Fiber ◽  
Distilled Water ◽  
Matrix Composites ◽  
Fiber Reinforced ◽  
Content Type ◽  
Wear Rates ◽  
Water Condition ◽  
Polyimide Composites ◽  
Carbon Fiber Reinforced ◽  
Polyimide Matrix

Purpose – The purpose of this paper is to prepare carbon fiber-reinforced polyimide matrix composites and to investigate the single role of carbon fiber in polyimide composites on tribological performance under distilled water condition. Design/methodology/approach – Three carbon fiber-reinforced polyimide matrix composites were fabricated by using a hot press molding technique. The tribological behaviors of carbon fiber-reinforced polyimide matrix composites sliding against steel ball were evaluated with a ball-on-disk tribotester under distilled water condition. Meanwhile, the effect of different length of carbon fiber on the wear resistance of polyimide matrix composites was investigated during the sliding process. Findings – The friction coefficients and specific wear rates of polyimide composites containing 100 μm carbon fibers were lower than those of other specimens. The wear mechanism of carbon fiber-reinforced composites was delamination under distilled water condition. The interfacial combination between the carbon fiber and matrix became worse with the increase of length of carbon fiber. Originality/value – This paper reported the effect of the different length of carbon fiber on polyimide matrix composites to prepare mechanical parts in mining industrial fields.

Friction and wear behavior of polyimide matrix composites filled with nanographite

2021 ◽  
pp. 52058
Author(s):  
Changxin Wan ◽  
Chenyu Yao ◽  
Jian Li ◽  
Haitao Duan ◽  
Shengpeng Zhan ◽  
...  
Keyword(s):  
Friction And Wear ◽  
Wear Behavior ◽  
Matrix Composites ◽  
Friction And Wear Behavior ◽  
Polyimide Matrix

Influence of Silica as an Abrasive on Friction Performance of Polyimide-Matrix Composites

2017 ◽  
Vol 25 (1) ◽  
pp. 43-48 ◽  
Author(s):  
X.L. Xu ◽  
X. Lu ◽  
Z.X. Qin ◽  
D.L. Yang
Keyword(s):  
Particle Size ◽  
Friction Coefficient ◽  
Friction Velocity ◽  
Experimental Results ◽  
Powder Size ◽  
Matrix Composites ◽  
Third Body ◽  
Silica Powder ◽  
Friction Performance ◽  
Polyimide Matrix

This study investigated the friction performance of polyimide-matrix composites with various silica powder contents of different sizes. The friction tests were performed on a pin-on-disk tester at various velocities, ranging from 30 to 160 km/h. The experimental results indicate a silica powder size of 0.25±0.05 mm, a sample of 4 wt.% SiO2 demonstrated a high friction coefficient and better wear performance as compared to a sample without silica. The influence of silica content and powder size on the friction coefficient is directly related to the friction velocity. At low friction velocity (30–90 km/h), the friction coefficient increases as the SiO2 content increases, but decreases with increasing SiO2 particle size. At high friction velocity (90–160 km/h), the content and particle size of SiO2 have little influence on the friction coefficient. Experimental results indicate that large SiO2 particles can effectively hinder the motion of third body, which is advantageous to the formation of a compact third body and to the protection of the friction surface.

Studies on Cutting Forces of High Volume Fraction SiCp/Al Composites with Ultrasonic Vibration High Speed Milling

2011 ◽  
Vol 295-297 ◽  
pp. 785-788 ◽  
Author(s):  
Dao Hui Xiang ◽  
Guang Xi Yue ◽  
Xin Tao Zhi ◽  
Hai Tao Liu ◽  
Bo Zhao
Keyword(s):  
Cutting Forces ◽  
High Speed ◽  
Volume Fraction ◽  
Cutting Speed ◽  
High Volume ◽  
High Volume Fraction ◽  
Matrix Composites ◽  
Machining Performance ◽  
High Speed Milling ◽  
Hard Cutting

The orthogonal method was used for analyzing the machining performance of high volume fraction SiCp/Al metal matrix composites (SiCp/Al MMCs) during high speed milling and ultrasonic high speed milling in this paper. The influence of cutting speed, feed rate and cutting depth on 3-directional forces were investigated. The results show that the cutting forces are decreased due to the cutting mechanism of SiCp/Al MMCs is changed from brittle cutting to ductile cutting during ultrasonic high speed milling. In addition, the chips exist in forms of C-type chips because of increasing rake angles. Ultrasonic high-speed milling is a more highly effective hard cutting way compared with high speed milling.

A Study on Heat Transfer in High-Speed Grinding of Titanium Matrix Composites

2016 ◽  
Vol 693 ◽  
pp. 1003-1008 ◽  
Author(s):  
Xin Xin Xi ◽  
Wen Feng Ding ◽  
Zheng Li ◽  
Jiu Hua Xu ◽  
Xun Yang Wang
Keyword(s):  
Heat Transfer ◽  
High Speed ◽  
Cubic Boron Nitride ◽  
Matrix Composites ◽  
Titanium Matrix ◽  
Titanium Matrix Composites ◽  
Cbn Wheel ◽  
High Speed Grinding ◽  
Superabrasive Wheels ◽  
Vitrified Cbn Wheel

High-speed grinding experiment of titanium matrix composites is carried out with cubic boron nitride (CBN) superabrasive wheels in this work. The heat transfer into the titanium matrix composites (TMCs) is discussed based on theoretical analysis. A calculation method of thermal ratio passing into the workpiece is represented. Results obtained show that high-speed grinding of PTMCs using vitrified CBN wheel has a greater thermal ratio passing into the workpiece than using electroplated CBN wheel. Moreover, a linear relationship is established between es and ds1/4ap-3/4vw-1/2.

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