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matrix precursor impregnants

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Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003422
EISBN: 978-1-62708-195-5
.... The article discusses matrix precursor impregnants, liquid impregnation, and chemical vapor infiltration (CVI) for densification of CCCs. It presents various coating approaches for protecting CCCs, including pack cementation, chemical vapor deposition, and slurry coating. Practical limitations of coatings...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003064
EISBN: 978-1-62708-200-6
... Space Structures Other Applications Fiber Selection Manufacturing Fiber Properties Bulk Properties Axial Properties Transverse Properties Matrix Precursor Impregnants Liquid Impregnation Chemical Vapor Infiltration (CVI) Fundamentals of Protecting Carbon-Carbon...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003421
EISBN: 978-1-62708-195-5
..., fiber tows or rovings are passed through a tank containing the sol, and the impregnated tow is wound on a mandrel to a desired shape and thickness. The sol is converted to gel, and the structure is removed from the mandrel. A final heat treatment then converts the gel to a ceramic- or glass matrix...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003373
EISBN: 978-1-62708-195-5
..., or by using highly graphitic pitch-precursor materials for liquid impregnation. For purely structural applications, a less- graphitic and more-glassy carbon matrix material is often used, which requires less high-temperature processing. Diamond as a matrix material is not commercially available due...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001317
EISBN: 978-1-62708-170-2
..., PtRe, or PtSn on acidified Al 2 O 3 (pellet) (2)Isomerization (3)Aromization Methanol to gasoline process CH 3 OH → aromatics ZSM-5 zeolite (pellet) Paraffin isomerization Linear → branched hydrocarbons Pt/H mordenite in alumina matrix (pellet) Fig. 1 Impregnated catalyst...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003033
EISBN: 978-1-62708-200-6
...Abstract Abstract This article addresses the types, properties, forms, and applications of fibers that are available for use in fiber-reinforced polymeric matrix composites, including glass, graphite, carbon, aramid, boron, silicon carbide, ceramic, continuous oxide and discontinuous oxide...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003063
EISBN: 978-1-62708-200-6
...Abstract Abstract Ceramic-matrix composites (CMCs) are being developed for a number of high-temperature and high-performance applications in industrial, aerospace, and energy conservation sectors. This article focuses on processing, fabrication, testing, and characterization methods of CMCs...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003031
EISBN: 978-1-62708-200-6
...Typical hot/wet in-service temperatures of selected organic matrix materials Table 1 Typical hot/wet in-service temperatures of selected organic matrix materials Material Temperature °C °F Epoxy 120 250 Bismaleimide 220 430 Polyimide 260 500 Polyetheretherketone...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.9781627081955
EISBN: 978-1-62708-195-5
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003441
EISBN: 978-1-62708-195-5
... of types. The two main types are a single-stage resole and a two-stage novolac. The resole phenolic is the most widely used, because of its handling characteristics in the impregnated form. It cures by means of a condensation-type reaction in which water is formed as a by-product. The resultant matrix...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009074
EISBN: 978-1-62708-177-1
... view along the length of a prepreg material. However, the staging process can take some time and can alter the resin distribution in the sample(s). If staging is performed at greater than room temperature, this reduces the viscosity of the matrix and can cause further resin impregnation...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003365
EISBN: 978-1-62708-195-5
... of two types of polyimide resins: condensation polyimides and addition-type polyimides. It describes the chemistry of condensation-type polyimides during synthesis, processing of polyamide acid precursor solution to polyimide, and preparation of polyimide films from thermoplastic polyamic acid precursors...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003350
EISBN: 978-1-62708-195-5
... materials. The article concludes with a discussion on the applications of organic-matrix, metal-matrix, and ceramic-matrix composites. References References 1. Carl Zweben, Composite Materials and Mechanical Design , Mechanical Engineer's Handbook , 2nd ed. , Kutz Myer , Ed., John Wiley...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001318
EISBN: 978-1-62708-170-2
... Carbon-carbon is a unique composite material in which a nonstructural carbonaceous matrix is reinforced by carbon fibers to create a heat-resistant structural material that finds application in the aerospace and defense industries. This article provides a detailed account of the fundamentals...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001457
EISBN: 978-1-62708-173-3
.... Brennan J.J. , Glass and Glass-Ceramic Matrix Composites , Fiber Reinforced Ceramic Composites , Mazdiyasni K.S. , Ed., Noyes Publications , 1990 , p 222 – 259 17. Mah T. et al. , Ceramic Fiber Reinforced Metal-Organic Precursor Matrix Composites , Fiber Reinforced Ceramic...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003430
EISBN: 978-1-62708-195-5
..., producing a product very close in dimensions and shape to a starting aluminum-ceramic fiber preform, but is restricted in the choice of constituents for the composite. The techniques involving matrix or matrix-precursor infiltration into a fiber preform are limited in precision by two factors: the precision...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006434
EISBN: 978-1-62708-192-4
.... , et al. , PTFE Tribology and the Role of Mechanochemistry in the Development of Protective Surface Films , Macromolecules , Vol 48 ( No. 11 ), 2015 , p 3739 – 3745 10.1021/acs.macromol.5b00452 55. Wu Y. , Liu H. , et al. , The Friction and Wear of Electroless Ni-P Matrix...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.9781627082006
EISBN: 978-1-62708-200-6
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003019
EISBN: 978-1-62708-200-6
... closing, compressing material to fill cavity Fig. 5 Size of charge in relation to tool Abstract Abstract The compression molding process is most commonly called the sheet molding compound (SMC) process in reference to the precursor sheet molding compound material it uses. This article...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003374
EISBN: 978-1-62708-195-5
...Abstract Abstract Fiber-matrix adhesion is a variable to be optimized in order to get the best properties and performance in composite materials. This article schematically illustrates fiber matrix interphase for composite materials. It discusses thermodynamics of interphase in terms of surface...