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invite you to dip into the stream of information on advanced materials,
such as:
Titanium
Silicon Carbide & Related Compounds and Materials
... Ti3SiC2
was first synthesized by Jeitschko and Nowotny as far back
as 1967. Recent interest in the phase is due to the availability
of improved material from a hot-pressing route, leading to
high purity polycrystalline single-phase samples of near-theoretical
density. The structure has been reported as hexagonal in space
group P63/mmc (194) with a < 0.307 nm
and c < 1.769 nm. The Ti occupies 2a and 4f sites,
Si a 2b site and C a 4f site. As shown in Figure, the phase
consists of a layered structure with a double TiC block,
each made up of two edge-sharing CTi6 octahedra.
A square-planar Si sheet separates the double TiC blocks...
["Structure
and Crystal Chemistry of Ti3SiC2"
by E. H. Kisi, J. A. A. Crossley, S. Myhra and M. W. Barsoum.].
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Aluminum
Silicon Carbides & Related Compounds and Materials
...Crystal
structures of alpha-Al4SiC4 and Al4Si2C5
may be formed by substituting SiC layers for AlN layers in
the structures of Al5C3N and Al6C3N2,
respectively. Aluminium carbonitride is composed of three
structural components of Al2C2, AlN
and Al2C layers [G. A. Jeffrey, V. Y. Wu, 1963.].
These three hexagonal layers stack alternately along the [0001]
direction forming hexagonal close packing. Al5C3N
structure consists of successive layers of Al2C,
AlN and Al2C2, and Al6C3N2
structure of AlN, Al2C, AlN and Al2C2,
respectively. If the SiC layers can be substituted for the
AlN layers in aluminium carbonitride, the structure of aluminium
silicon carbide will be formed... ["X-ray
Crystallographic Data on Aluminum Silicon Carbide, a-Al4SiC4
and Al4Si2C5" by Z.
Inoue, Y. Inomata, H. Tanaka, H. Kawabata.].
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Aluminum
Oxycarbides & Related Compounds and Materials
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