Mechanical and electrical properties of polymer-derived Si–C–N ceramics reinforced by octadecylamine – Modified single-wall carbon nanotubes
Source abstract
Abstract
Abstract Polymer-derived Si–C–N ceramics reinforced by homogeneously distributed octadecylamine–functionalized single-walled carbon nanotubes (SWCNTs) were synthesized using a casting process, successive pressureless cross-linking and thermolysis. We find that the incorporation of even small amounts of modified SWCNTs leads to a remarkable improvement of mechanical and electrical transport properties of our composites. In particular, we find twofold enhancement of fracture toughness. The Youngs modulus and the hardness show increase by ∼30% and 15%, respectively. Furthermore, the electrical conductivity was found to increase more than five orders of magnitude even for a tube content of 0.5 wt.%.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Carbon Nanotubes in Composites · Graphene research and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (41)
Show source-provided references
1. Precursor-derived covalent ceramics10.1002/adma.19950070903 ↗
2. Compression creep behaviour of precursor-derived Si–C–N ceramics10.1016/S0955-2219(99)00093-X ↗
3. Thermal stability of precursor-derived Si–(B)–C–N ceramics
4. High-temperature deformation of amorphous Si–C–N and Si–B–C–N ceramics derived from polymers10.1016/S1359-6454(01)00420-7 ↗
5. Indentation analysis of elastic and plastic deformation of precursor-derived Si–C–N ceramics10.1016/j.jeurceramsoc.2009.09.006 ↗
6. Si–B–C–N ceramic precursors derived from dichlorodivinylsilane and chlorotrivinylsilane. 2. Ceramization of polymers and high-temperature behaviour of ceramic materials10.1021/cm021179a ↗
7. Novel polysilazanes as precursors for silicon nitride/silicon carbide composites without “free” carbon10.1016/j.jeurceramsoc.2004.07.020 ↗
8. Precursor-derived Si–(B–)C–N ceramics: thermolysis, amorphous state and crystallization10.1002/aoc.242 ↗
9. Fracture toughness of amorphous precursor-derived ceramics in the silicon–carbon–nitrogen system10.1111/j.1151-2916.2001.tb00988.x ↗
10. Burghard Z. PhD thesis, University of Stuttgart, Stuttgart; 2004.
11. Fracture toughness evaluation of precursor-derived Si–C–N ceramics using the crack opening displacement approach10.1016/j.jnoncrysol.2009.07.002 ↗
12. Multifunctional composites of ceramics and single-walled carbon nanotubes10.1002/adma.200802270 ↗
13. Ceramic matrix composites containing carbon nanotubes10.1007/s10853-009-3262-9 ↗
14. Exceptionally high Young’s modulus observed for individual carbon nanotubes10.1038/381678a0 ↗
15. Nanobeam mechanics: elasticity, strength, and toughness of nanorods and nanotubes10.1126/science.277.5334.1971 ↗
16. Young’s modulus of single-walled nanotubes10.1103/PhysRevB.58.14013 ↗
17. Tensile loading of ropes of single wall carbon nanotubes and their mechanical properties10.1103/PhysRevLett.84.5552 ↗
18. Unusually high thermal conductivity of carbon nanotubes10.1103/PhysRevLett.84.4613 ↗
19. High-purity carbon nanotubes synthesis method by an arc discharging in magnetic field10.1063/1.1491302 ↗
20. Ceramic matrix composites containing carbon nanotubes10.1007/s10853-009-3262-9 ↗
21. Carbon-nanotube-reinforced polymer-derived ceramic composites10.1002/adma.200306241 ↗
22. Katsuda Y. PhD thesis, University of Stuttgart; 2006.
23. Reinforcement of precursor-derived Si–C–N ceramics with carbon nanotubes10.1016/j.jeurceramsoc.2005.10.014 ↗
24. Polymer-derived Si–C–N ceramics reinforced by single wall carbon nanotubes10.3139/146.101399 ↗
25. Chemical modification of single-walled carbon nanotubes for the reinforcement of precursor-derived ceramics10.1021/cm801125k ↗
26. Surface modified carbon nanotubes in CNT/epoxy-composites10.1016/S0009-2614(03)00187-8 ↗
27. Solubilisation of carbon nanotubes vie polymer attachment10.1142/S0219581X02000334 ↗
28. Nanomechanical characterisation of solid surfaces and thin films10.1179/095066003225010227 ↗
29. An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments10.1557/JMR.1992.1564 ↗
30. Fabrication and characterization of fully dense Si–C–N ceramics from a poly(ureamethylvinyl)silazane precursor10.1016/j.jeurceramsoc.2008.05.028 ↗
31. Interfacial bond conditions and stress distribution in a 2-D reinforced brittle matrix composite10.1016/S0266-3538(97)00069-9 ↗
32. Carbon nanotubes welded by precursor derived silicoboron carbonitride ceramics10.1002/1521-396X(200210)193:3<R13::AID-PSSA999913>3.0.CO;2-Z ↗
33. Morphological characterization of single-walled carbon nanotubes-PP composites10.1016/S0266-3538(03)00036-8 ↗
34. Nucleation of polyvinyl alcohol crystallization by single-walled carbon nanotubes10.1016/j.polymer.2004.04.031 ↗
35. In situ measurements of bridged crack interfaces in the SEM10.1111/j.1151-2916.1990.tb06454.x ↗
36. Measurement of crack tip toughness in alumina as a function of grain size10.1111/j.1151-2916.1997.tb02848.x ↗
37. A critical evaluation of indentation techniques for measuring fracture toughness: I, direct crack measurements10.1111/j.1151-2916.1981.tb10320.x ↗
38. Crack opening profiles of indentation cracks in normal and anomalous glasses10.1016/j.actamat.2003.09.014 ↗
39. Nanoceramic composites: tough to test10.1038/nmat1174 ↗
40. Dimensionality and size effects on the strength of fiber-reinforced composites10.1016/S0266-3538(99)00150-5 ↗
41. Dispersion assessment and studies on AC percolative conductivity in polymer-derived Si–C–N/CNT ceramic nanocomposites10.1007/s10853-009-3304-3 ↗