Perturbed angular correlation studies of uniaxial compressive stressed zinc, titanium, rutile, Ti2AlN, and Nb2AlC
Perturbed angular correlation studies of uniaxial compressive stressed zinc, titanium, rutile, Ti2AlN, and Nb2AlC
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单轴压应力锌、钛、金红石、Ti2AlN 和 Nb2AlC 的扰动角度相关研究
DOI:
10.1088/0953-8984/26/29/295501
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
M.W. Barsoum
中科院分区:
文献类型:
--
作者:
C. Brüsewitz;U. Vetter;H. Hofsäss;M.W. Barsoum
We use the perturbed angular correlation method with 111 In-111 Cd probe atoms to in situ study the changes in the electric field gradient at room temperature of polycrystalline Ti 2 AlN and Nb 2 AlC, titanium and zinc, and rutile samples, as a function of cyclic uniaxial compressive loads. The load dependence of the quadrupole coupling constant ν Q was found to be large in titanium and zinc but small in Ti 2 AlN, Nb 2 AlC and rutile. Reversible and irreversible increases in the electric field gradient distribution widths were found under load and after releasing the load, respectively. Annihilation of dislocations, as well as elastic deformation, are considered to contribute to the reversible behavior. The irreversible response must be caused by a permanent increase in dislocation and point defect densities. The deformation induced broadening of the electric field gradient can be recovered by post-annealing of the deformed sample.
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DOI:
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发表时间:
1973
期刊:
影响因子:
--
作者:
M. Forker
通讯作者:
M. Forker
影响因子:
6
作者:
Bruesewitz, Christoph;Knorr, Inga;Volkert, Cynthia A.
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Volkert, Cynthia A.
影响因子:
1.6
作者:
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通讯作者:
Dubois, S.
DOI:
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发表时间:
1978
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--
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T. Butz
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T. Butz
DOI:
--
发表时间:
1998
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--
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通讯作者:
K. Lieb