Journal article
Synthesis and compressibility of Ti 3 ( Al,Sn 0.2 ) C 2 and Ti 3 Al ( C 0.5 ,N 0.5 ) 2
Journal of applied physics, v 101(11), pp 113523-113523-7
08 Jun 2007
Abstract
In this paper we report on the synthesis of a composition,
Ti
3
Al
(
C
0.5
,N
0.5
)
2
, belonging to the
M
n
+
1
AX
n
family of ternary layered carbides and nitrides. X-ray and selected area diffraction confirm that this compound is isostructural with
Ti
3
SiC
2
; its
a
and
c
-lattice parameters are
3.0404
(
5
)
and
18.414
(
6
)
Å
, respectively. Chemical analysis performed by electron dispersive and electron energy loss spectroscopy confirmed the
Ti
3
AlCN
chemistry. Using a synchrotron radiation source and a diamond anvil cell, we also measured the pressure dependencies of the lattice parameters. Up to a pressure of
≈
50
GPa
, no phase transformations were observed. The bulk modulus is
219
±
4
GPa
, with a pressure derivative,
K
o
′
, of
3.7
±
0.3
. We also fabricated the ternary
Ti
3
AlC
2
, with some Sn [nominal composition
Ti
3
(
AlSn
0.2
)
C
2
]. Its
a
and
c
-lattice parameters are
3.0804
(
7
)
and
18.5426
(
7
)
Å
, respectively. Its bulk modulus is
226
±
3
GPa
, with a pressure derivative,
K
o
′
, of
≈
4
. In both cases, the compressibility was greater along the
c
than along the
a
axes. We also show that in the case of
Ti
n
+
1
AlC
n
MAX-phases, replacing C by
N
results in a decrease in both lattice parameters
and
bulk moduli. The apparent contradiction inherent in this observation can be reconciled by assuming that the addition of
N
results in the formation of vacancies on the Al and/or X-sites.
Metrics
Details
- Title
- Synthesis and compressibility of Ti 3 ( Al,Sn 0.2 ) C 2 and Ti 3 Al ( C 0.5 ,N 0.5 ) 2
- Creators
- Bouchaib Manoun - Center for Study of Matter at Extreme Conditions (CeSMEC), Florida International University, VH-140, University Park, Miami, Florida 33199S Saxena - Center for Study of Matter at Extreme Conditions (CeSMEC), Florida International University, VH-140, University Park, Miami, Florida 33199Gilles Hug - Laboratoire d'étude des Microstructures, ONERA-CNRS, BP72 92322, Châtillon, FranceA Ganguly - Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104E Hoffman - Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104M Barsoum - Drexel University
- Publication Details
- Journal of applied physics, v 101(11), pp 113523-113523-7
- Publisher
- American Institute of Physics
- Grant note
- NSF DOE DMR 0503711 / NSF DMR 0231291 / NSF DMR 0225180 / NIH
- Resource Type
- Journal article
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000247306000050
- Scopus ID
- 2-s2.0-34250633254
- Other Identifier
- 991019173760304721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Physics, Applied