Using a synchrotron radiation source and a diamond anvil cell, we measured the pressure dependence of the lattice parameters of a polycrystalline Ti3Si0.5Ge0.5C2 sample. Up to a pressure of 53 GPa, no phase transformations were observed. As for the isostructural hexagonal Ti3SiC2, the compressibility along the c axis was greater than along a. The bulk modulus is 183±4 GPa with a pressure derivative of 3.4±0.2. This work shows that the replacement of Si by Ge in Ti3SiC2 results in a systematic decrease in the bulk moduli.

1.
M. W.
Barsoum
and
T.
El-Raghy
,
J. Am. Ceram. Soc.
79
,
1953
(
1996
).
2.
M. W.
Barsoum
,
D.
Brodkin
, and
T.
El-Raghy
,
Scr. Metall. Mater.
36
,
535
(
1997
).
3.
T.
El-Raghy
,
A.
Zavaliangos
,
M. W.
Barsoum
, and
S.
Kalidinidi
,
J. Am. Ceram. Soc.
80
,
513
(
1997
).
4.
M. W.
Barsoum
,
T.
El-Raghy
, and
L.
Ogbuji
,
J. Electrochem. Soc.
144
,
2508
(
1997
).
5.
M. W.
Barsoum
and
T.
El-Raghy
,
J. Mater. Synth. Process.
5
,
197
(
1997
).
6.
M. W.
Barsoum
,
G.
Yaroschuck
, and
S.
Tyagi
,
Scr. Mater.
37
,
1583
(
1997
).
7.
M. W.
Barsoum
,
Prog. Solid State Chem.
28
,
201
(
2000
).
8.
I. M.
Low
,
S. K.
Lee
,
B.
Lawn
, and
M. W.
Barsoum
,
J. Am. Ceram. Soc.
81
,
225
(
1998
).
9.
L.
Farber
,
M. W.
Barsoum
,
A.
Zavaliangos
,
T.
El-Raghy
, and
I.
Levin
,
J. Am. Ceram. Soc.
81
,
1677
(
1998
).
10.
E. H.
Kisi
,
J. A. A.
Crossley
,
S.
Myhra
, and
M. W.
Barsoum
,
J. Phys. Chem. Solids
59
,
1437
(
1998
).
11.
M.
Amer
,
M. W.
Barsoum
,
T.
El-Raghy
,
I.
Wiess
,
S.
Leclair
, and
D.
Liptak
,
J. Appl. Phys.
84
,
5817
(
1998
).
12.
Y.
Du
,
J. C.
Schuster
,
H.
Seifert
, and
F.
Aldinger
,
J. Am. Ceram. Soc.
83
,
197
(
2000
).
13.
M. W.
Barsoum
,
T.
El-Raghy
,
C. J.
Rawn
,
W. D.
Porter
,
A.
Payzant
, and
C.
Hubbard
,
J. Phys. Chem. Solids
60
,
429
(
1999
).
14.
B. Manoun, S. K. Saxena, H.-P. Liermann, and M. W. Barsoum (unpublished).
15.
A.
Onodera
,
H.
Hirano
,
T.
Yuasa
,
N. F.
Gao
, and
Y.
Miyamoto
,
Appl. Phys. Lett.
74
,
3782
(
1999
).
16.
F.
Birch
,
J. Geophys. Res.
83
,
1257
(
1978
).
17.
H. G. Drikamer, R. W. Lynch, R. L. Clendenen, and E. A. Perez-Alubuerne, in Solid State Physics Vol. 19, edited by F. Seitz and D. Turnbull (Academic, New York, 1996), p. 135.
18.
R.
Pampuch
,
J.
Lis
,
J.
Piekarczyk
, and
L.
Stobierski
,
J. Mater. Synth. Process.
1
,
93
(
1993
).
19.
P.
Finkl
,
M. W.
Barsoum
, and
T.
El-Raghy
,
J. Appl. Phys.
87
,
1701
(
2000
).
20.
A. K.
Singh
and
G. C.
Kennedy
,
J. Appl. Phys.
48
,
3362
(
1977
).
21.
W. A.
Passett
,
M. S.
Weathers
,
T. C.
Wu
, and
T.
Holmquist
,
J. Appl. Phys.
74
,
3824
(
1993
).
22.
R. G.
Greene
,
H.
Luo
, and
A. L.
Ruoff
,
Phys. Rev. Lett.
73
,
2075
(
1994
).
23.
P. Finkel, PhD thesis, Drexel University, 2003.
24.
Y. C.
Zhou
,
Z.
Sun
,
X.
Wang
, and
S.
Chen
,
J. Phys.: Condens. Matter
13
,
10001
(
2001
).
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