Results 211 to 220 of about 173,298,982 (259)
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Microstructural Design of Ceramics
Powder Metallurgy and Metal Ceramics, 2013A methodological approach to the design of ceramics with predetermined composition and microstructure is proposed. Its fundamental idea is to implement the accumulated knowledge into existing technologies or develop novel science-based technologies. The choice of a known microstructure and the design of a novel one is based on the knowledge accumulated
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Microstructure and Properties of ZrB2-Based Ceramics
Journal of Materials Processing & Manufacturing Science, 2000Microstructure and properties of zirconium diboride based ceramics, sintered without sintering aids and with the addition of 4 wt% of nickel, are evaluated. Although the two powder compositions have been densified by hot pressing, only the presence of Ni allows the achievement of high final densities (98%), while pure ZrB2 presents a residual porosity ...
Bellosi A. +3 more
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Microstructure and the Strength of Ceramics
1986Microstructural influences on ceramic strength become significant at small flaw sizes. These influences are readily quantified by strength testing with controlled indentation flaws. Data are presented here for alumina and glassy-ceramic specimens broken under both inert and fatigue conditions.
C. J. Fairbanks +3 more
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Ceramic/Metal Reactions and Microstructures in Ceramic Joints
1998Ceramics and in particular combinations of ceramics and metals appear to offer many technical and economic advantages to design engineers, permitting products to be made with better wear resistance, higher service temperatures and so on, but if these aspirations are to be met it is usually necessary for the ceramic and the metal to form high integrity ...
Stathis D. Peteves +3 more
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Ceramic microstructures and potential applications
Microsystem Technologies, 1995The developed process of tape casting with subsequent stamping is a promising way to make three-dimensional ceramic microstructures. Examples of different ceramic materials illustrate, that a good quality of the moulding with high form fit can be attained after optimisation of the slurry and the stamping process.
Knitter, R. +3 more
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The Microstructure of Nitrogen Ceramics
1983Since the nitrogen ceramics meeting(1) held in 1976, our knowledge and understanding of the role of the microstructure of this class of material has expanded and matured. At that time knowledge was scanty and restricted mainly to Si3N4 hot pressed with MgO; it had been established that the material consisted principally of grains of β-Si3N4 with ...
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Embossing of 3D ceramic microstructures
Microsystem Technologies, 2002An embossing method based on the viscous polymer processed (VPP) ceramic tape has been used to fabricate 3D ceramic microstructures with high aspect ratios. Examples of lead zirconate titanate (PZT) microrod arrays with feature sizes of 10–150 μm and aspect ratios of 3–10 have been demonstrated.
B. Su +4 more
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Etching and microstructure of engineering ceramics
Materials Characterization, 1995Engineering ceramics are often difficult to prepare metallographically because of their hardness, wear resistance and chemical inertness. Two silicon carbides, a silicon nitride and a sialon, are prepared and etched using several different techniques. The most efficient methods are identified. © 1995.
Simon G. Cook +2 more
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Microstructure and Mechanical Properties of Metal-to-Ceramic and Ceramic-to-Ceramic Joints
1981Solid state ceramic-ceramic or ceramic-metal bonding is a joining method which promises bond properties equivalent to those of the bulk material, both at ambient and elevated temperatures1. Microstructural features at the interface such as cracks, unbonded areas and intermediate reactions layers, however, can strongly influence the mechanical ...
Gerhard Elssner +2 more
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Microstructure and Deterioration in Steatite Ceramics
Journal of the American Ceramic Society, 1983Pitting in steatite ceramics was found to occur as a result of (1) deterioration with time, the familiar aging phenomenon, and (2) secondary recrystallization, which takes place immediately after fabrication. Differences in microstructural and other features observed in the two cases are pointed out.
Prasanta Nandi, Vemuri C. S. Prasad
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