ISSN:
1013-9826
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
The microstructure and its evolution of 3D-Cf/SiC composites derived from organic precursorare studied by using scanning electronic microscopy, mercury intrusion porosimetry, isothermal N2sorption and bubble point method, etc. As the results shown, MIP is preferable to N2 sorption for thecharacterization of pore size distribution (PSD) because of its wider effective probing ranges. The typicalporosity of fabricated 3D-Cf/SiC composites is 10-15vol.%, and all the pores distribute in a quite widesize ranging from some dozens of nanometers to hundreds of microns and can be divided into threegroups, according to their sizes, contents and locations: the inter-bundle macro-pores/paths, theintra-bundle pores and the micro-pores/cracks around the interfaces or in the matrixes. Themacro-pores/paths constitute a porous network, which is partially open throughout the composites
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.1034.pdf
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