Materials Science |1|

      Ceramic materials are the main topic discussed here. Obviously, these are not clays nor mortars used by ceramic artists and potters, but rather materials used in advanced technologies.
     For example, ceramics are candidate materials for advanced heat engine applications because of their ability to sustain load at high temperatures and their relatively low density. Generally brittleness is the property distinguishing ceramics from other materials classes, therefore we do not limit our classification to inorganic minerals and synthetic compounds, but include such materials like graphite, glassy carbons and composites.
      Below are specific examples of scientific and technical publications. As these are available at technical libraries in many countries, only abstracts are provided here. Please contact the original paper for more information. Selected examples of arbitrarily chosen topics follow.
      As time permits, the discussion of various aspects of ceramics R&D, technology and applications is going to be extended on Internet.

   

TOPIC 
Technology Transfer


TITLE: Sol-Gel Process for Fabricating Whisker-Reinforced Composites Minimizes Health Hazards

Materials Technology, 10 [11/12] 241- 242, 1995.

By W.A. Zdaniewski

SiC and Si3 N4 whiskers used as reinforcements in ceramic and metal matrix composites pose health hazard during their processing. A sol-gel sprying method under development by Patria, Inc. significantly reduces the health hazards associated with handling these whiskers by dispersing and immobilizing them in silicate gels.

TITLE: Conductive Ceramic Composites for Oxidizing and Corrosive Electroplating Applications

Powder Metallurgy, Vol.39, [4] 250-251 (1996)

By W.A. Zdaniewski

Novel ceramic matrix composites developed by Patria. In. are described. Reaction control during hot pressing makes it possible to produce conductive materials that have potential for use as electrodes in hostile environments.

TITLE: Conductive Ceramic Composites

Materials World, Vol. 5 [3] 141 (1997)

By W.A. Zdaniewski

Conductive ceramic composites developed by Patria. Inc. constitute complex systems based on oxide and non-oxide phases. During high-temperature processing the starting materials react forming oxynitrides and oxycarbonitrides. Presence of phases with covalent and metallic bonding impart electrical conductivity, which is not a typical property of most ceramics. Conductivity in combination with good wear and corrosion resistance and the refractory nature of ceramics offers potential for applications of the composites as electrodes in advanced technologies.
Visit Materials World   [Footnote]

TITLE: Conductive Ceramics Handle Hot, Corrosive Environments

High-Tech Mater. Alert, Vol.14, 6 p.3-4 [1997]

By W.A. Zdaniewski

TOPIC 
arrowr.gif (1151bytes)    Mechanical and thermal properties and fractography of brittle
materials (glasses, borides, carbides and composites)


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