Author: Shigeyuki SōmiyaPublisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 672
Book Description
Mullite and Mullite Matrix Composites
Author: Shigeyuki SōmiyaPublisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 672
Book Description
Mullite
Author: Hartmut SchneiderPublisher: John Wiley & Sons
ISBN: 3527606963
Category : Technology & Engineering
Languages : en
Pages : 509
Book Description
The only book to provide a complete survey -- from the crystallographic fundamentals right up to recent high-tech applications in aerospace technology. Following a general introduction to the topic, the authors go on to cover the crystal chemistry of mullite and related phases, as well as its basic properties, phase equilibria and stability. One whole section is devoted to the synthesis and processing of mullite ceramics, while later ones cover mullite coatings, fibers and matrix composites. For materials scientists, solid state chemists and physicists, crystallographers and mineralogists.
Processing and Properties of Mullite Fiber/mullite Matrix Composites
Author: Jung-Soo HaHandbook of Ceramic Composites
Author: Narottam P. BansalPublisher: Springer Science & Business Media
ISBN: 0387239863
Category : Technology & Engineering
Languages : en
Pages : 547
Book Description
This valuable handbook has been compiled by internationally renowned researchers in the field. Each chapter is focused on a specific composite system or a class of composites, presenting a detailed description of processing, properties, and applications.
Microstructural Development, Phase Stability, and Toughening in Mullite Matrix Composites
Author: Lin Chien-ChengPublisher:
ISBN:
Category :
Languages : en
Pages : 482
Book Description
Mullite matrix composites with partially stabilized zirconia and/or SiC whiskers were fabricated by hot pressing of powders which had been prepared from Al, Si, Zr, and Mg (or Y) alkoxide precursors by a sol-gel process. A series of studies were conducted on microstructural evolution, oxidation behavior and toughening mechanisms, in order to extend the knowledge in these areas and provide a basis for the future development of these materials. X-ray diffraction, optical microscopy, high resolution scanning electron microscopy (SEM) and analytical transmission electron microscopy (TEM) were the major tools used in the present study. Following a detailed microstructural/microchemical characterization of the hot-pressed composites, their microstructural evolution was elucidated, by examining powder samples heat treated or hot pressed at various temperatures between 800 and 1400$spcirc$C. It was found that, during hot pressing, mullite developed from an intermediate Al-Si spinel phase, while zirconia could develop by (1) nucleation, growth and subsequent transformation of cubic ZrO$sb2$ particles from the amorphous matrix; (2) dissolution and reprecipitation from mullite grains; (3) decomposition from zircon (ZrSiO$sb4$), which had formed as an intermediate phase. The microstructural development in hot pressed composites was found to be significantly different from that in heat treated powders. The oxidation behavior of SiC whiskers in various matrices was investigated at temperatures ranging from 1000 to 1350$spcirc$C for up to 1000 hours. Oxidation products and morphologies were observed in both cross-sectional and surface-normal samples by TEM. Oxidation mechanisms were described in details, and two basic oxidation modes were defined based on relative oxygen diffusivities in the matrix and the oxide layer around SiC whiskers. They were verified, and a mixed oxidation mode was also identified in actual composites. It was shown that oxidation behaviors could be strongly influenced by the matrix composition and microstructure, as well as by the temperature. Finally, possible toughening mechanisms in mullite matrix composites were addressed, through direct observations on fracture surfaces by TEM and SEM. The question of additivity of such mechanisms was also discussed.
Metal and Ceramic Matrix Composites
Author: Brian CantorPublisher: CRC Press
ISBN: 1420033972
Category : Science
Languages : en
Pages : 432
Book Description
With contributions from leading experts in their respective fields, Metal and Ceramic Matrix Composites provides a comprehensive overview of topics on specific materials and trends. It is a subject regularly included as a final year option in materials science courses and is also of much industrial and academic interest. The book begins wit
Vaporization from Mullite Matrix Composites During Inductively Coupled Plasma Sintering
Author: Youngsoo ParkProcessing and Properties of Alumina Fibre-reinforced Mullite Ceramic Matrix Composites
Author: Cengiz KayaMullite Whisker Reinforced Aluminum
Author: André Anthony McFaydenPublisher:
ISBN:
Category :
Languages : en
Pages : 162
Book Description
Ceramic Fibers and Coatings
Author: Committee on Advanced Fibers for High-Temperature Ceramic CompositesPublisher: National Academies Press
ISBN: 0309569036
Category : Technology & Engineering
Languages : en
Pages : 112
Book Description
High-temperature ceramic fibers are the key components of ceramic matrix composites (CMCs). Ceramic fiber properties (strength, temperature and creep resistance, for example)-along with the debonding characteristics of their coatings-determine the properties of CMCs. This report outlines the state of the art in high-temperature ceramic fibers and coatings, assesses fibers and coatings in terms of future needs, and recommends promising avenues of research. CMCs are also discussed in this report to provide a context for discussing high-temperature ceramic fibers and coatings.