Results 301 to 310 of about 90,779 (353)

Ceramic microstructures and properties

Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 1985
Ceramic materials are currently being used in many applications, and it is expected that there are many new applications of ceramics in high-technology engineering systems, e.g., in microelectronics. However, many problems have to be overcome to improve the properties of the different ceramic components.
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Studies on microstructure and microproperty of PLZT ceramics

Ferroelectrics, 1988
Abstract The microstructure of PLZT tranparent ferroelectric ceramics were studied by using the HREM techniques and electron diffraction study. The following experimental results were obtained: (1) The structure of micro-domains presented in the cubic α phase is exactly the same structure of its ferroelectric β phase after poling.
Z.W. Yin, X.T. Chen, X.Y. Song, J.W. Feng   +3 more
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Examples of evolution of microstructure in ceramics and composites

Microscopy Research and Technique, 1993
AbstractIn this article we describe a number of studies involving the direct observation of microstructural evolution. In general these investigations were carried out to establish the mechanistic paths involved. The materials studied range from fibers being evaluated for use in high‐temperature ceramic composites to energetic materials used as ...
P W, Brown, J R, Hellmann, M, Klimkiewicz   +2 more
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Microstructural Design of Ceramics

Powder Metallurgy and Metal Ceramics, 2013
A 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, 2000
Microstructure 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., Monteverde F., Fabbriche D. D., Melandri C.   +3 more
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Microstructure of Ceramic Materials

2013
The properties of ceramics depend on their microstructure, which is defined by the type, size, morphology, distribution, orientation and composition of the phases present and by the interface between the grains. In the latter case, a thick or thin layer of amorphous material may be found, originating from sintering additives. The variables involved can
Carlos P. Bergmann, Aisha Stumpf
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Piezoresponse and microstructure of BaTaO2N ceramics

Journal of the European Ceramic Society, 2018
Abstract Piezoresponse force microscopy was conducted on a polished slice of the perovskite oxynitride ceramic BaTaO2N after ammonolysis at a bias voltage of ± 10 V. The ceramic surface was relatively porous because it was readily hydrolyzed by ambient humidity.
Akira Hosono, Yuji Masubuchi, Yuki Nagamine, Takeshi Shibahara, Shinichi Kikkawa   +4 more
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Microstructure and the Strength of Ceramics

1986
Microstructural 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, B. R. Lawn, R. F. Cook, Y. W. Mai   +3 more
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Ceramic/Metal Reactions and Microstructures in Ceramic Joints

1998
Ceramics 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, Mervi Paulasto, Giacomo Ceccone, Michael G. Nicholas   +3 more
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Ceramic microstructures and potential applications

Microsystem Technologies, 1995
The 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., Günther, E., Odemer, C., Maciejewski, U.   +3 more
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