Temperature dependence of [100](010) and [001](010) dislocation mobility in natural olivine
Temperature dependence of [100](010) and [001](010) dislocation mobility in natural olivine
复制标题
天然橄榄石中[100](010)和[001](010)位错迁移率的温度依赖性
DOI:
10.1016/j.epsl.2016.02.029
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发表时间:
2016
影响因子:
5.3
通讯作者:
T. Katsura
中科院分区:
文献类型:
--
作者:
S. Blaha;Z. Pintér;R. Farla;T. Kawazoe;N. Miyajima;K. Michibayashi;T. Katsura
Dislocation recovery experiments were conducted on pre-deformed olivine single crystals at 1450 to 1760 K, room pressure, and oxygen partial pressures near the Ni–NiO buffer to determine the annihilation rates for [100] and [001] dislocations on the (010) plane. Olivine single crystals were first deformed to activate the desired slip systems under simple shear geometry and then annealed at target conditions. The edge and screw dislocations with Burgers vectors,b, of [100] and [001], respectively, both elongated in the [001] direction were produced by the deformation. The dislocation annihilation rate constants of both types of dislocations are identical within 0.3 log unit. The activation energies for both dislocations are also identical, i.e., ∼400 kJ/mol, which is also identical to that of the Si self-diffusion coefficient. This correspondence suggests that olivine dislocation creep controlled by a diffusion-controlled process under low-stress and high-temperature conditions. This study offers a potential insight into the formation of AG-type fabric in olivine.
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DOI:
--
发表时间:
1982
期刊:
影响因子:
--
作者:
S. Karato;M. Ogawa
通讯作者:
M. Ogawa
DOI:
--
发表时间:
1978
期刊:
影响因子:
--
作者:
M. Toriumi;S. Karato
通讯作者:
S. Karato
影响因子:
56.9
作者:
KOHLSTEDT, DL;GOETZE, C;VANDERSANDE, J
通讯作者:
VANDERSANDE, J
影响因子:
2.3
作者:
J. Poirier;B. Vergobbi
通讯作者:
B. Vergobbi
影响因子:
64.8
作者:
T. Mizukami;S. Wallis;J. Yamamoto
通讯作者:
T. Mizukami;S. Wallis;J. Yamamoto