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Title: Effect of neutron irradiation on defect evolution in Ti3SiC2 and Ti2AlC

Journal Article · · Journal of Nuclear Materials
ORCiD logo [1];  [2];  [3];  [3];  [4];  [3];  [1]
  1. Drexel Univ., Philadelphia, PA (United States)
  2. Idaho National Lab. (INL), Idaho Falls, ID (United States)
  3. Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)
  4. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

Here, we report on the characterization of defects formed in polycrystalline Ti3SiC2 and Ti2AlC samples exposed to neutron irradiation – up to 0.1 displacements per atom (dpa) at 350 ± 40 °C or 695 ± 25 °C, and up to 0.4 dpa at 350 ± 40 °C. Black spots are observed in both Ti3SiC2 and Ti2AlC after irradiation to both 0.1 and 0.4 dpa at 350 °C. After irradiation to 0.1 dpa at 695 °C, small basal dislocation loops, with a Burgers vector of b = 1/2 [0001] are observed in both materials. At 9 ± 3 and 10 ± 5 nm, the loop diameters in the Ti3SiC2 and Ti2AlC samples, respectively, were comparable. At 1 × 1023 loops/m3, the dislocation loop density in Ti2AlC was ≈1.5 orders of magnitude greater than in Ti3SiC2, at 3 x 1021 loops/m3. After irradiation at 350 °C, extensive microcracking was observed in Ti2AlC, but not in Ti3SiC2. The room temperature electrical resistivities increased as a function of neutron dose for all samples tested, and appear to saturate in the case of Ti3SiC2. The MAX phases are unequivocally more neutron radiation tolerant than the impurity phases TiC and Al2O3. Based on these results, Ti3SiC2 appears to be a more promising MAX phase candidate for high temperature nuclear applications than Ti2AlC.

Research Organization:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC07-051D14517
OSTI ID:
1236713
Alternate ID(s):
OSTI ID: 1359392
Report Number(s):
INL/JOU-15-34198; PII: S0022311515302786
Journal Information:
Journal of Nuclear Materials, Vol. 468, Issue C; ISSN 0022-3115
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 66 works
Citation information provided by
Web of Science

References (53)

MAX phase carbides and nitrides: Properties for future nuclear power plant in-core applications and neutron transmutation analysis journal March 2012
On the elastic properties and mechanical damping of Ti3SiC2, Ti3GeC2, Ti3Si0.5Al0.5C2 and Ti2AlC in the 300–1573K temperature range journal June 2006
Thermal properties of Ti3SiC2 journal April 1999
Electrical conductivity, thermopower, and Hall effect of Ti 3 AlC 2 , Ti 4 AlN 3 , and Ti 3 SiC 2 journal October 2000
Processing and Mechanical Properties of Ti3SiC2: II, Effect of Grain Size and Deformation Temperature journal October 1999
A Critical Review of the Oxidation of Ti 2 AlC, Ti 3 AlC 2 and Cr 2 AlC in Air journal September 2013
Long-Term Oxidation of Ti 2 AlC in Air and Water Vapor at 1000–1300°C Temperature Range journal January 2011
Microstructural evolution during high-temperature oxidation of Ti2AlC ceramics journal June 2011
Oxidation-induced crack healing in Ti3AlC2 ceramics journal January 2008
Multiple crack healing of a Ti2AlC ceramic journal July 2012
High temperature healing of Ti2AlC: On the origin of inhomogeneous oxide scale journal July 2011
Oxidation and Crack Healing Behavior of a Fine-Grained Cr 2 AlC Ceramic journal February 2013
Self-healing performance of Ti2AlC ceramic journal January 2012
Reactivity of Zircaloy-4 with Ti3SiC2 and Ti2AlC in the 1100–1300 °C temperature range journal May 2015
Damage tolerance of Ti3SiC2 to high energy iodine irradiation journal June 2012
Damages induced by heavy ions in titanium silicon carbide: Effects of nuclear and electronic interactions at room temperature journal March 2009
Effect of helium irradiation on Ti3AlC2 at 500°C journal April 2014
Effects of He irradiation on Ti3AlC2: Damage evolution and behavior of He bubbles journal September 2013
Formation of nanosized hills on Ti3SiC2 oxide layer irradiated with swift heavy ions journal January 2012
Irradiation Damage in Ti 3 (Si,Al)C 2 : a TEM Investigation : Irradiation Damage in Ti journal April 2010
Microstructural changes induced by low energy heavy ion irradiation in titanium silicon carbide journal July 2011
Nanoindentation investigation of heavy ion irradiated Ti3(Si,Al)C2 journal June 2010
Radiation tolerance of Mn+1AXn phases, Ti3AlC2 and Ti3SiC2 journal August 2010
Stability of the nitrogen-deficient Ti2AlN x MAX phase in Ar2+-irradiated (Ti,Al)N/Ti2AlN x multilayers journal June 2010
Structural changes induced by heavy ion irradiation in titanium silicon carbide journal February 2011
The structural transitions of Ti3AlC2 induced by ion irradiation journal February 2014
XRD investigation of ion irradiated Ti3Si0.90Al0.10C2
  • Liu, Xingmin; Le Flem, Marion; Béchade, Jean-Luc
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 268, Issue 5 https://doi.org/10.1016/j.nimb.2009.11.017
journal March 2010
Irradiation resistance properties studies on helium ions irradiated MAX phase Ti3AlC2 journal May 2014
Surface damage of Ti3SiC2 by MeV iodine bombardment journal July 2013
Damage accumulation and recovery in C+-irradiated Ti3SiC2 journal March 2014
Contribution of core-loss fine structures to the characterization of ion irradiation damages in the nanolaminated ceramic Ti3AlC2 journal November 2013
Effect of neutron irradiation on select MAX phases journal February 2015
Processing and characterization of Ti2AlC, Ti2AlN, and Ti2AlC0.5N0.5 journal July 2000
A profile refinement method for nuclear and magnetic structures journal June 1969
Neutron diffraction study on structural and magnetic properties of La 2 NiO 4 journal May 1991
Thickness measurements with electron energy loss spectroscopy journal August 2008
Dislocations and Stacking Faults in Ti3SiC2 journal June 1998
Processing and Mechanical Properties of Ti3SiC2: I, Reaction Path and Microstructure Evolution journal October 1999
Tape Casting, Pressureless Sintering, and Grain Growth in Ti 3 SiC 2 Compacts journal April 2004
Investigations on Radiation Tolerance of M n +1 AX n Phases: Study of Ti 3 SiC 2 , Ti 3 AlC 2 , Cr 2 AlC, Cr 2 GeC, Ti 2 AlC, and Ti 2 AlN journal January 2015
Theoretical investigation of thermodynamic stability and mobility of the intrinsic point defects in Ti 3 AC 2 (A = Si, Al) journal January 2015
First-principles investigation of the intrinsic defects in Ti3SiC2 journal March 2014
Accommodation, Accumulation, and Migration of Defects in Ti 3 SiC 2 and Ti 3 AlC 2 MAX Phases journal August 2013
Defects and microstructural evolution of proton irradiated titanium carbide journal May 2012
The Topotactic Transformation of Ti3SiC2 into a Partially Ordered Cubic Ti  (  C 0.67Si0.06 )  Phase by the Diffusion of Si into Molten Cryolite journal January 1999
Thermal stability of Ti3SiC2 thin films journal February 2007
Revisiting the defect structure of MAX phases: the case of Ti 4 AlN 3 journal March 2008
A first-principles investigation of the phase stability of Ti2AlC with Al vacancies journal February 2008
Phase stabilities and structural relaxations in substoichiometric TiC 1 x journal April 2001
Limits on irradiation-induced thermal conductivity and electrical resistivity in silicon carbide materials journal August 2004
Neutron and electron radiation defects in titanium and tantalum monocarbides: An electrical resistivity study journal January 1981
Disorder-order phase transformations and electrical resistivity of nonstoichiometric titanium carbide journal July 1998
Diffusion of Ag, Au and Cs implants in MAX phase Ti3SiC2 journal July 2015

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