1-20 of 254 Search Results for

oxide fibers

Sort by
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870573
EISBN: 978-1-62708-314-0
... to polymer or even metal matrix composites, ceramic matrix composites are difficult and expensive to fabricate. Reinforcements for ceramic matrix composites are usually carbon, oxide, or nonoxide ceramic fibers, whiskers, or particulates. Carbon fiber is used in C-C composites; while oxide fibers...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550569
EISBN: 978-1-62708-307-2
..., continuous fiber ceramic composites, and carbon-carbon composites. It also describes a number of ceramic-matrix composite processing methods, including cold pressing and sintering, hot pressing, reaction bonding, directed metal oxidation, and liquid, vapor, and polymer infiltration. ceramic-matrix...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240607
EISBN: 978-1-62708-251-8
... additions, as depicted in Fig. 33.1 . Reinforcements, characterized as either continuous or discontinuous, may constitute from 10 to 70 vol% of the composite. Continuous fiber reinforcements include graphite, silicon carbide (SiC), boron, aluminum oxide (Al 2 O 3 ), and refractory metal wires. Continuous...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550621
EISBN: 978-1-62708-307-2
... Thermal conductivity Medium to high Medium, but often decreases rapidly with temperature Very low Thermal shock resistance Good Generally poor … Electrical characteristics Conductors Insulators Insulators Chemical resistance Low to medium Excellent Good Oxidation resistance...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030237
EISBN: 978-1-62708-349-2
... materials as a function of temperature and time. Fig. 14.1 Micrographs showing the effect of temperature on the depth of surface oxidation in a surfacing film/glass fiber composite. (a) As received (no exposure). (b) 204 °C (400 °F) exposure. (c) 232 °C (450 °F) exposure. (d) 260 °C (500 °F) exposure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060223
EISBN: 978-1-62708-343-0
..., and enhanced interfaces for oxidation. continuous-fiber metal-matrix composites elastic-viscoplastic property mismatch residual stress relaxation thermal expansion mismatch THE TECHNOLOGICAL ADVANTAGES of continuous-fiber-reinforced composites include increased static strength and lower density...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550457
EISBN: 978-1-62708-307-2
..., aluminum oxide (Al 2 O 3 ), and refractory metals. Discontinuous reinforcements consist mainly of SiC in whisker (w) form, particulate (p) types of SiC, Al 2 O 3 , and titanium diboride (TiB 2 ), and short or chopped fibers (c) of Al 2 O 3 or graphite. A relative comparison of composite performance...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870031
EISBN: 978-1-62708-314-0
... shapes and is very difficult to machine. Other high-temperature ceramic fibers, such as silicon carbide (Nicalon), aluminum oxide, and alumina boria silica (Nextel), are frequently used in ceramic-based composites but rarely in polymer-based composites. The stress-strain curves in Fig. 2.2 show...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870401
EISBN: 978-1-62708-314-0
... TOS. The sodium and potassium on the fiber surfaces catalyzed air oxidation of the fibers at elevated temperatures. More recently produced carbon fibers have much lower sodium contents and greatly improved TOS. The dominant degradation mechanism for the carbon/polyimides is oxidation of the matrix...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870179
EISBN: 978-1-62708-299-0
... constitute from 10 to 70 vol% of the composite. Continuous-fiber or filament reinforcements for aluminum include graphite, silicon carbide (SiC), boron, and aluminum oxide (Al 2 O 3 ). Fabrication techniques for these composites vary from vapor deposition coating of the fibers, liquid-metal infiltration...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120131
EISBN: 978-1-62708-269-3
... of production, consistency of product properties, oxidation resistance of fibers and matrices, and repairability are major concerns in the application of TMC materials. It is unlikely that these materials will be useful for any standard commercial applications for many years to come and may never be cost...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870537
EISBN: 978-1-62708-314-0
... fiber lengths are a few micrometers to several hundred micrometers but are broken up during processing so that their aspect ratios (length/diameter) range from three to about 100. Continuous-fiber reinforcements include graphite, SiC, boron, aluminum oxide (Al 2 O 3 ), and refractory metal wires...
Image
Published: 01 November 2010
Fig. 14.1 Micrographs showing the effect of temperature on the depth of surface oxidation in a surfacing film/glass fiber composite. (a) As received (no exposure). (b) 204 °C (400 °F) exposure. (c) 232 °C (450 °F) exposure. (d) 260 °C (500 °F) exposure. Transmitted light, phase contrast, 20 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550001
EISBN: 978-1-62708-307-2
... of new plastics were polystyrene and polyvinyl chloride. The real star of the plastics industry in the 1930s was polyamide, far better known by its trade name nylon. Nylon was the first purely synthetic fiber, introduced by DuPont Corporation at the 1939 World’s Fair in New York City. Plastics came...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870285
EISBN: 978-1-62708-314-0
... Abstract This chapter discusses the effect of fiber length and orientation on the strength and stiffness of discontinuous-fiber composites. It also describes several fabrication processes, including spray-up, compression molding, reaction injection molding, and injection molding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030089
EISBN: 978-1-62708-349-2
... microscopy. bright-field illumination contrast microscopy dark-field illumination fiber-reinforced polymer-matrix composites fluorescence microscopy Interference microscopy macrophotography polarized-light microscopy reflected-light microscopy When viewing a polished fiber-reinforced...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.tm.t52320001
EISBN: 978-1-62708-357-7
... Transparent alumina Optical fiber High-strength zirconia Superconducting oxides Glass fiber reinforced plastics Carbon fiber reinforced plastics Multiphase polymers Fig. 1.8 History of development in new materials. OP, oxide powder 1.4.2 Progress in Synthetic Polymers and Ceramics Steel is a foundation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030245
EISBN: 978-1-62708-349-2
...-light optical microscopy. Deeper under the damage zone, areas of matrix oxidation and microcracking were found in the composite plies. Fig. 15.13 Lightning strike damage in a carbon fiber composite laminate having metal foil on the surface for protection. (a) Slightly uncrossed polarized light, 4...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290279
EISBN: 978-1-62708-306-5
... by mechanical fastening, adhesive bonding, and, for thermoplastic composites, welding; the making of glass-to-metal seals; and joining of oxide and nonoxide ceramics to themselves and to metals by solid-state processes and by brazing. The classification, types, applications, and the mechanism of each...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220353
EISBN: 978-1-62708-259-4
... authors have adopted the range of 0.3T m to 0.5T m to define this operation. Beside the important structural differences, two other important aspects differentiate cold and hot work: forming steel at high temperatures usually results in surface oxidation and distortion related to temperature change...