Composite fabrication, comparison

Figure 30. High-temperature strength of unidirectional carbon/carbon composites fabricated with rayon-based Thorne1 75 fibers and coal-tar pitch as matrix precursor to a density of 1.51 g/cmJ (31,54), in comparison with a 3D composite (55), pyrolytic graphite, and a commercial graphite.

V. Medri, F. Monteverde, A, Balbo, and A. Bellosi, Comparison of ZrB2-ZrC-SiC Composites Fabricated by Spark Plasma Sintering and Hot-Pressing, Adv. Eng. Mater, 1 [3] 159-63 (2005). 

Godbehere AP, Mills AR, Irving P. Non-ciimped fabrics versus pre-preg CFRP composites - a comparison of mechanical performance. In Proceedings 6th international conference on fibre reinforced composites, FRC 94. University of Newcastle upon Tyne, Institute of Materials ... 

Jarmon, D.C., Weeks, C.A., Naik, R.A., Kogstrom, C.L., Logan, C.P., Braun, P.F., 1998. Mechanical property comparison of 3-D and 2-D graphite reinforced epoxy composites fabricated by resin transfer molding. In Proceedings of 43rd International SAMPE Symposium, Anaheim, CA, May 31-June 4, 1998. 

While early studies by the group at the University of Leeds focused on melt-spun UHMWPE fibres, the hot compaction process was also subsequently applied to commercial UHMWPE gel-spun fibres [124,125]. It was reported that for some PE fibres, the optimum hot compaction temperature was only 1-2 C less than the temperature at which substantial crystalline melting occurred [117]. At these temperatures, approximately 30% of the oriented fibre content could be lost to melting, and so would be expected to strongly affect the mechanical properties of the final composite. A comparison of the hot compaction of different commercial UHMWPE assemblies, such as fabrics and felts, with commercial UHMWPE laminates was later presented by Morye et al. [126] and Puente Orench et al. [127]. 

Table 12.10 Comparison of tensile properties of curaua fiber green composite fabricated using DM and PS methods [28].

Table 12.8 Comparison of SiC /SiC composites fabricated by different processes [72]...

Medri, V., Monteverde, F., Balbo, A., Bellosi, A. (2005). Comparison of ZrB -ZrC-SiC composite fabricated by sparkplasma sintering and hot pressing. A[Pg.119]

Fabrication methods and conditions that determine the structure and composition of iridium oxide affect pH response characteristics of resultant pH sensors. A comparison... 

SiC whisker-reinforced glass matrix composites were fabricated at the same process viscosity of the matrices and were well consolidated. All the composites were 30 wt% whiskers (No. 1) composites. The properties of these composites are given in Table 3.19. A comparison of the 1723 matrix composite and the 7052 composite shows that the latter is much weaker and has a lower modulus. Comparing the 7052 and 7740 systems, the 7740 composites are weaker still. A comparison of the 0080 and 1723 systems again shows a lower performance for the 0080 composite. 

Figure 7. Comparison of a conventional hip joint fabricated from cobalt alloys with a joint design using carbon-fiber-reinforced composites tailored to meet specific local stress requirements (18) ...

Figure 34. Comparison of the flexural strengths of unidirectional carbon/carbon composites (left-hand side) with those of hybrid composites in which the final impregnation is made with an epoxy resin (34) The composites were fabricated with high-modulus fibers rigidized with phenolic resin, and subjected to four densification cycles with coal-tar pitch plus sulfur.

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