Matches in SemOpenAlex for { <https://semopenalex.org/work/W848450188> ?p ?o ?g. }
Showing items 1 to 83 of
83
with 100 items per page.
- W848450188 abstract "Improved carbon-fiber-reinforced SiC ceramic-matrix composite (C/SiC CMC) materials, suitable for fabrication of thick-section structural components, are producible by use of a combination of raw materials and processing conditions different from such combinations used in the prior art. In comparison with prior C/SiC CMC materials, these materials have more nearly uniform density, less porosity, and greater strength. The majority of raw-material/processing-condition combinations used in the prior art involve the use of chemical vapor infiltration (CVI) for densifying the matrix. In contrast, in synthesizing a material of the present type, one uses a combination of infiltration with, and pyrolysis of, a preceramic polymer [polymer infiltration followed by pyrolysis (PIP)]. PIP processing is performed in repeated, tailored cycles of infiltration followed by pyrolysis. Densification by PIP processing takes less time and costs less than does densification by CVI. When one of these improved materials was tested by exposure to a high-temperature, inert-gas environment that caused prior C/SiC CMCs to lose strength, this material did not lose strength. (Information on the temperature and exposure time was not available at the time of writing this article.) A material of the present improved type consists, more specifically, of (1) carbon fibers coated with an engineered fiber/matrix interface material and (2) a ceramic matrix, containing SiC, derived from a pre-ceramic polymer with ceramic powder additions. The enhancements of properties of these materials relative to those of prior C/SiC CMC materials are attributable largely to engineering of the fiber/ matrix interfacial material and the densification process. The synthesis of a material of this type includes processing at an elevated temperature to a low level of open porosity. The approach followed in this processing allows one to fabricate not only simple plates but also more complexly shaped parts. The carbon fiber reinforcement in a material of this type can be in any of several alternative forms, including tow, fabric, or complex preforms containing fibers oriented in multiple directions." @default.
- W848450188 created "2016-06-24" @default.
- W848450188 creator A5062619648 @default.
- W848450188 date "2007-09-01" @default.
- W848450188 modified "2023-09-27" @default.
- W848450188 title "Improved C/SiC Ceramic Composites Made Using PIP" @default.
- W848450188 hasPublicationYear "2007" @default.
- W848450188 type Work @default.
- W848450188 sameAs 848450188 @default.
- W848450188 citedByCount "0" @default.
- W848450188 crossrefType "journal-article" @default.
- W848450188 hasAuthorship W848450188A5062619648 @default.
- W848450188 hasConcept C104779481 @default.
- W848450188 hasConcept C120024216 @default.
- W848450188 hasConcept C121332964 @default.
- W848450188 hasConcept C127413603 @default.
- W848450188 hasConcept C134132462 @default.
- W848450188 hasConcept C136525101 @default.
- W848450188 hasConcept C142724271 @default.
- W848450188 hasConcept C153400128 @default.
- W848450188 hasConcept C154256306 @default.
- W848450188 hasConcept C159985019 @default.
- W848450188 hasConcept C178790620 @default.
- W848450188 hasConcept C185592680 @default.
- W848450188 hasConcept C192562407 @default.
- W848450188 hasConcept C204787440 @default.
- W848450188 hasConcept C206139338 @default.
- W848450188 hasConcept C36759035 @default.
- W848450188 hasConcept C47566043 @default.
- W848450188 hasConcept C521977710 @default.
- W848450188 hasConcept C548081761 @default.
- W848450188 hasConcept C62520636 @default.
- W848450188 hasConcept C6648577 @default.
- W848450188 hasConcept C71924100 @default.
- W848450188 hasConceptScore W848450188C104779481 @default.
- W848450188 hasConceptScore W848450188C120024216 @default.
- W848450188 hasConceptScore W848450188C121332964 @default.
- W848450188 hasConceptScore W848450188C127413603 @default.
- W848450188 hasConceptScore W848450188C134132462 @default.
- W848450188 hasConceptScore W848450188C136525101 @default.
- W848450188 hasConceptScore W848450188C142724271 @default.
- W848450188 hasConceptScore W848450188C153400128 @default.
- W848450188 hasConceptScore W848450188C154256306 @default.
- W848450188 hasConceptScore W848450188C159985019 @default.
- W848450188 hasConceptScore W848450188C178790620 @default.
- W848450188 hasConceptScore W848450188C185592680 @default.
- W848450188 hasConceptScore W848450188C192562407 @default.
- W848450188 hasConceptScore W848450188C204787440 @default.
- W848450188 hasConceptScore W848450188C206139338 @default.
- W848450188 hasConceptScore W848450188C36759035 @default.
- W848450188 hasConceptScore W848450188C47566043 @default.
- W848450188 hasConceptScore W848450188C521977710 @default.
- W848450188 hasConceptScore W848450188C548081761 @default.
- W848450188 hasConceptScore W848450188C62520636 @default.
- W848450188 hasConceptScore W848450188C6648577 @default.
- W848450188 hasConceptScore W848450188C71924100 @default.
- W848450188 hasLocation W8484501881 @default.
- W848450188 hasOpenAccess W848450188 @default.
- W848450188 hasPrimaryLocation W8484501881 @default.
- W848450188 hasRelatedWork W161399298 @default.
- W848450188 hasRelatedWork W1995972443 @default.
- W848450188 hasRelatedWork W2059577720 @default.
- W848450188 hasRelatedWork W2084715947 @default.
- W848450188 hasRelatedWork W2883003610 @default.
- W848450188 hasRelatedWork W2919837180 @default.
- W848450188 hasRelatedWork W8270591 @default.
- W848450188 hasRelatedWork W839221643 @default.
- W848450188 hasRelatedWork W1737128644 @default.
- W848450188 hasRelatedWork W189261104 @default.
- W848450188 hasRelatedWork W2241591974 @default.
- W848450188 hasRelatedWork W2269422520 @default.
- W848450188 hasRelatedWork W2394844990 @default.
- W848450188 hasRelatedWork W2752113887 @default.
- W848450188 hasRelatedWork W2769822026 @default.
- W848450188 hasRelatedWork W2843258577 @default.
- W848450188 hasRelatedWork W2989173081 @default.
- W848450188 hasRelatedWork W3019553761 @default.
- W848450188 hasRelatedWork W3019816619 @default.
- W848450188 hasRelatedWork W3181359893 @default.
- W848450188 isParatext "false" @default.
- W848450188 isRetracted "false" @default.
- W848450188 magId "848450188" @default.
- W848450188 workType "article" @default.