Topic
Ceramic matrix composite
About: Ceramic matrix composite is a research topic. Over the lifetime, 7807 publications have been published within this topic receiving 117020 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this article, a hot-pressed silicon-nitride-based ceramic has been used for cutting cast irons at high speeds (10−16.75 m s−1 (600−1000 m min−1) and rates (about 1.0 mm rev−1), where conventional tools cannot be used.
90 citations
TL;DR: In this paper, a two-step process containing precoating the BRT114 powders with a thin layer of glass, followed by conventional samples preparation process, tremendously improved the densification behavior of the material.
Abstract: Ba–B–Si glass was added to Ba–Nd–Sm–Bi–Ti–O (BRT114) microwave dielectric material for LTCC applications. Conventional one-step processing method for preparing glass-BRT114 composite materials yields low dielectric constant, since the glass was easy to react with BRT114 and forms a low dielectric constant phase, Ba3B6Si2O16. A large proportion of pores appeared. The nature of glass, whether it is sol-gel derived or fused, shows marked influence on the microstructure and microwave dielectric properties of the composites. A two-step process containing precoating the BRT114 powders with a thin layer of glass, followed by conventional samples preparation process, tremendously improved the densification behaviour of the material. The formation of pores and interactions between glass and BRT114 was greatly suppressed such that materials with high dielectric constant (er=40) were achieved by sintering 9 wt.% glass-containing composite at 950 °C for 2.5 h.
90 citations
01 Jan 2005
TL;DR: In this paper, the authors focus on commercially available SiC-based ceramic fiber types of current interest for CMC and on their current state of experimental and mechanistic knowledge concerning their production methods, microstructures, physical properties, and mechanical properties at room and high temperatures.
Abstract: Non-oxide ceramic fibers are being considered for many applications, but are currently being developed and produced primarily as continuous-length structural reinforcement for ceramic matrix composites (CMC). Since only those fiber types with compositions based on silicon carbide (SiC) have demonstrated their general applicability for this application, this chapter focuses on commercially available SiC-based ceramic fiber types of current interest for CMC and on our current state of experimental and mechanistic knowledge concerning their production methods, microstructures, physical properties, and mechanical properties at room and high temperatures. Particular emphasis is placed on those properties required for successful implementation of the SiC fibers in high-temperature CMC components. It is shown that significant advances have been made in recent years concerning SiC fiber production methods, thereby resulting in pure near-stoichiometric small-diameter fibers that provide most of the CMC fiber property requirements, except for low cost.
90 citations
TL;DR: In this article, spark plasma sintering is employed to synthesize a variety of self-lubricating ZrO2(Y2O3) matrix composites by tailoring the chemical compositions.
89 citations
TL;DR: In this paper, the damage progression in silicon carbide fiber (Nicalon) reinforced calcium alumino-silicate (CAS) glass-ceramic composites subjected to monotonic uniaxial tensile loading has been studied.
89 citations